AMS Sectional Meeting Full Program
Current as of Saturday, October 13, 2007 00:36:28
2007 Fall Central Section Meeting
Chicago, IL, October 56, 2007 (Friday  Saturday)
Meeting #1030
Associate secretaries: Susan J Friedlander, AMS susan@math.northwestern.edu
Friday October 5, 2007

Friday October 5, 2007, 7:30 a.m.4:00 p.m.
Meeting Registration
Lobby (8th Floor), Lewis Center 
Friday October 5, 2007, 7:30 a.m.4:00 p.m.
Exhibit and Book Sale
Lobby (8th Floor), Lewis Center 
Friday October 5, 2007, 8:30 a.m.10:50 a.m.
Special Session on Sequence Spaces and Transformations, I
Room 1107, Lewis Center
Organizers:
Constantine Georgakis, DePaul University cgeorgak@condor.depaul.edu
Martin Buntinas, Loyola University of Chicago mbuntin@math.luc.edu

8:30 a.m.
A Survey of G\"{u}nther Goes' Research Work II.
Martin G Buntinas*, Loyola University Chicago
(103040135) 
9:30 a.m.
Abel Summability of Laguerre and Jacobi Functions Expansions.
Calixto P. Calderon*, University of Illinois at Chicago
(103042166) 
10:30 a.m.
On some recent results on sequence spaces.
R N Mohapatra*, University of Central Florida
(103040212)

8:30 a.m.

Friday October 5, 2007, 8:30 a.m.10:55 a.m.
Special Session on Analysis and CR Geometry, I
Room 8207, DePaul Center
Organizers:
SongYing Li, University of California Irvine sli@math.uci.edu
Stephen ST Yau, University of Illinois at Chicago yau@uic.edu

8:30 a.m.
Regularity of solutions of nonsubelliptic PDE's.
David S Tartakoff*, University of Illinois at Chicago
(103032420) 
9:00 a.m.
Positive closed currents on pseudoconcave sets with thin fibers.
Zbigniew Slodkowski*, University of Illinois at Chicago, Dept. of Mathematics, Stat. and Comp. Sci., Chicago, Illinois 60607
(103032384) 
9:30 a.m.
Remarks on overconvergence.
Harold P. Boas*, Texas A&M University
(103032177) 
10:00 a.m.
Extension of Leviflat hypersurfaces past CR boundaries.
Jiri Lebl*, University of Illinois at UrbanaChampaign
(10303245) 
10:30 a.m.
ChernWeil forms on CY moduli.
Zhiqin Lu*, UCI
(103058114)

8:30 a.m.

Friday October 5, 2007, 8:30 a.m.10:50 a.m.
Special Session on Algorithmic Probability and Combinatorics, I
Room 1006, Lewis Center
Organizers:
Manuel Lladser, University of Colorado lladser@colorado.edu
Robert S. Maier, University of Arizona rsm@math.arizona.edu

8:30 a.m.
Phase Changes in Subtree Varieties in Random Trees.
Hosam M. Mahmoud*, The George Washington University
(103060129) 
9:00 a.m.
On the Number of $k$Cousins in Tries and Suffix Trees.
Hosam M. Mahmoud, The George Washington University
Mark Daniel Ward*, Purdue University
(103060370) 
9:30 a.m.
Quantum random walks in one dimension via generating functions.
Andrew Bressler*, University of Pennsylvania, Department of Mathematics
(103005155) 
10:00 a.m.
A Hybrid of Darboux's Method and Singularity Analysis in Combinatorial Asymptotics.
Eric Fusy*, Simon Fraser University, Vancouver
Philippe Flajolet, Projet ALGO, INRIA Rocquencourt, France
Xavier Gourdon, Paris, France
Daniel Panario, School of Mathematics and Statistics, Carleton University, Ottawa
Nicolas Pouyanne, Université de Versailles SaintQuentin en Yvelines, France
(10300580) 
10:30 a.m.
Effective methods in multivariate asymptotics.
Robin Pemantle*, University of Pennsylvania
(10300513)

8:30 a.m.

Friday October 5, 2007, 8:30 a.m.10:50 a.m.
Special Session on Smooth Dynamical Systems, I
Room 8012, DePaul Center
Organizers:
Marian Gidea, Northeastern Illinois University mgidea@neiu.edu
Ilie D. Ugarcovici, DePaul University iugarcov@depaul.edu

8:30 a.m.
Geometric methods for instability in Hamiltonian systems.
A. Delshams, Universidad Politecnica de Catalunya
M. Gidea, Northeastern IIllinois University
R. de la Llave*, Univ. of Texas at Austin
T. M.Seara, Univ. Politecnica de Catalunya
(103037317) 
9:00 a.m.
Arnold diffusion for non polynomial perturbations of an apriori unstable Hamiltonian system.
Gemma Huguet*, Universitat Politecnica de Catalunya
Amadeu Delshams, Universitat Politecnica de Catalunya
(10303779) 
9:30 a.m.
Shadowing orbits for transition chains of invariant tori.
Clark Robinson*, Northwestern University
(103037178) 
10:00 a.m.
Dynamics of VolumePreserving Maps near a SaddleNodeHopf Bifurcation.
James D Meiss*, University of Colorado
(10303752) 
10:30 a.m.
A result regarding the boundary map of an attractorrepeller pair.
Catalin Georgescu*, Department of Mathematical Sciences, The University of South Dakota
(103037359)

8:30 a.m.

Friday October 5, 2007, 9:00 a.m.10:55 a.m.
Special Session on Nonlinear Conservation Laws and Related Problems, I
Room 8010, DePaul Center
Organizers:
Cleopatra Christoforou, University of Houston cleopatra@math.uh.edu.
GuiQiang Chen, Northwestern University gqchen@math.northwestern.edu

9:00 a.m.
Time analyticity and backwards uniqueness of weak solutions of the NavierStokes equations of multidimensional, compressible flow.
David Hoff*, Indiana University
Eugene Tsyganov, Indiana University
(10303514) 
9:30 a.m.
Global Solution to the MultiDimensional Equations of Compressible Magnetohydrodynamic Flows.
Dehua Wang*, University of Pittsburgh
(10303515) 
10:00 a.m.
A bound from below for the temperature in compressible NavierStokes equations.
Antoine Mellet, UBC, Vancouver, Canada
Alexis F. Vasseur*, University of Texas at Austin
(10303512) 
10:30 a.m.
Optimal regularity near sonic line for regular shock reflection.
Myoungjean Bae, University of WisconsinMadison
GuiQiang Chen, Northwestern University
Mikhail Feldman*, University of WisconsinMadison
(10303533)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:50 a.m.
Special Session on Applied Harmonic Analysis, I
Room 8002, DePaul Center
Organizers:
Jonathan Cohen, DePaul University jcohen@math.depaul.edu
Ahmed I. Zayed, DePaul University azayed@math.depaul.edu

9:00 a.m.
Cyclic frames, burst erasures and statistics.
Bernhard G Bodmann*, Department of Mathematics, University of Houston
(103042252) 
9:30 a.m.
Rotational invariance and multiresolution analysis for 2D and 3Dimage analysis.
Juan R Romero, University of Houston
Manos Papadakis*, University of Houston
Saurabh Jain, University of Houston
Simon K Alexander, University of Houston
Shikha Baid, University of Houston
(103041361) 
10:00 a.m.
Decomposition and generalized wavelet bases on fractals.
Palle E. T. Jorgensen*, The University of Iowa
(10304106) 
10:30 a.m.
Applications of the Theory of SelfAdjoint Extensions of Symmetric Operator in Sampling and Interpolation.
Yufang Hao*, Department of Applied Mathematics / University of Waterloo
(103043110)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:50 a.m.
Special Session on Singular Integrals and Related Problems, I
Room 8011, DePaul Center
Organizers:
Laura De Carli, Florida International University decarlil@fiu.edu
A. M. Stokolos, DePaul University astokolo@condor.depaul.edu

9:00 a.m.
On BesovLipschitz spaces for Hermite polynomial expasions for any $\alpha >0$.
Ebner Pineda, Universidad Centroccidental Lisandro Alvarado
Wilfredo O Urbina*, Universidad Central de Venezuela and DePaul University
(103042203) 
9:30 a.m.
Existence of positive definite noncoercive sums ofsquares of real polynomials.
Gregory C Verchota*, Syracuse University, Syracuse, NY 13244
(103012141) 
10:00 a.m.
Algebras of rough singular integrals.
Dmitry Ryabogin*, Kent State University
(103042375) 
10:30 a.m.
CalderonZygmund Theory on uniformly rectifiable domains.
Marius Mitrea*, University of MissouriColumbia
(103042335)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:50 a.m.
Special Session on Geometric Combinatorics, I
Room 1005, Lewis Center
Organizers:
Caroline J. Klivans, University of Chicago cjk@math.uchicago.edu
Kathryn Nyman, Loyola University Chicago knyman@luc.edu

9:00 a.m.
On sequentially CohenMacaulay complexes and posets.
Anders Bjorner, Royal Institute of Technology, Stockholm
Michelle L. Wachs*, University of Miami
Volkmar Welker, Marburg University, Germany
(103005413) 
9:30 a.m.
Matroid base polytope decompositions and quasisymmetric functions.
Kurt W. Luoto*, University of Washington, Seattle, WA
(103005182) 
10:00 a.m.
Zonotopes of Line Shellings of Polytopes.
Catherine Stenson*, Juniata College
(103052349) 
10:30 a.m.
Tropical hyperplane arrangements and oriented matroids.
Federico Ardila*, San Francisco State University
Mike Develin, American Institute of Mathematics
(103052172)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:50 a.m.
Special Session on Numerical and Symbolic Techniques in Algebraic Geometry and Its Applications, I
Room 1110, Lewis Center
Organizers:
GianMario Besana, DePaul University gbesana@cti.depaul.edu
Jan Verschelde, University of Illinois at Chicago jan@math.uic.edu
Zhonggang Zeng, Northeastern Illinois University zzeng@neiu.edu

9:00 a.m.
Recent Results in Numerical Algebraic Geometry.
Andrew Sommese*, University of Notre Dame,
(103065311) 
9:30 a.m.
Algebraic Structures in Finite Element Computation.
Matthew G. Knepley*, Argonne National Laboratory, Mathematics and Computer Science Division
Dmitry Karpeev, Argonne National Laboratory, Mathematics and Computer Science Division
(103065424) 
10:00 a.m.
Parallel Implementation of a SubsystembySubsystem Solver.
Yun Guan*, University of Illinois at Chicago
Jan Verschelde, University of Illinois at Chicago
(103065318) 
10:30 a.m.
Likelihood ratio tests and singularities.
Mathias Drton*, University of Chicago
(103062200)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:50 a.m.
Special Session on Algebraic Coding Theory (in honor of Harold N. Ward's retirement), I
Room 1217, Lewis Center
Organizers:
Jay A. Wood, Western Michigan University jay.wood@wmich.edu

9:00 a.m.
Additive Cyclic Codes over $F_4$.
W. Cary Huffman*, Loyola University of Chicago
(103094148) 
9:30 a.m.
Formally selfdual additive codes over $\mathbb F_4$.
Sunghyu Han, University of Louisville
JonLark Kim*, University of Louisville
(103094161) 
10:00 a.m.
Twisted Tensor Product Codes.
Anton Betten*, Colorado State University
(10300563) 
10:30 a.m.
Constacyclic Codes over Galois Extension Rings of $\mathbb F_2+u\mathbb F_2$.
Hai Q Dinh*, Department of Mathematical Sciences, Kent State University, 4314 Mahoning Avenue, Warren, OH 44483
(103094385)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:50 a.m.
Special Session on Algebraic Combinatorics: Association Schemes and Related Topics, I
Room 1216, Lewis Center
Organizers:
Sung Y. Song, Iowa State University sysong@iastate.edu
Paul Terwilliger, University of Wisconsin terwilli@math.wisc.edu

9:00 a.m.
Symmetrizable threeclass association schemes and Schur rings.
Sung Y. Song*, Iowa State University
(103005163) 
9:30 a.m.
New nonsymmetric 3class association schemes on 64 points.
Leif K. J{\o}rgensen*, Aalborg University
(10300587) 
10:00 a.m.
Subsets of Coherent Configurations.
Sylvia A. Hobart*, University of Wyoming
(103005191) 
10:30 a.m.
Cometric association schemes with the $Q$antipodal property.
William J Martin*, Department of Mathematical Sciences and Department of Computer Science, Worcester Polytechnic Institute
(103005184)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:50 a.m.
Special Session on Graph Theory, I
Room 1214, Lewis Center
Organizers:
Hemanshu Kaul, Illinois Institute of Technology kaul@iit.edu
Michael J. Pelsmajer, Illinois Institute of Technology pelsmajer@iit.edu

9:00 a.m.
Listcoloring the square of a subcubic graph.
Daniel W Cranston*, DIMACS, Rutgers University, Piscataway, NJ
SeogJin Kim, Konkuk University, Seoul, Korea
(103005196) 
9:30 a.m.
The Randomized Coloring Procedure with SymmetryBreaking.
Sriram Pemmaraju*, The University of Iowa
Aravind Srinivasan, University of Maryland, College Park
(103005226) 
10:00 a.m.
Distance graph  $p$adic approach.
JeongHyun Kang*, University of West Georgia
Hiren Maharaj, Clemson University
(103005402) 
10:30 a.m.
Distance Related Graph Labelings.
Zsuzsanna Szaniszlo*, Valparaiso University
(103005353)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:45 a.m.
Special Session on Model Theory of Nonelementary Classes, I
Room 1106, Lewis Center
Organizers:
John T. Baldwin, University of Illinois at Chicago jbaldwin@uic.edu
David W. Kueker, University of Maryland dwk@math.umd.edu
Rami Grossberg, Carnegie Mellon University rami@cmu.edu

9:00 a.m.
Unique Nonsplitting Extensions in AEC.
John T. Baldwin*, University of Illinois at Chicago
(103003347) 
9:30 a.m.
The white region of the map of AECs.
Rami Grossberg*, Carnegie Mellon University
(103003393) 
10:00 a.m.
Superstability in Abstract Elementary Classes.
Monica VanDieren*, Robert Morris University
(103003297)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:55 a.m.
Special Session on Networks, I
Room 1111, Lewis Center
Organizers:
Martin Golubitsky, University of Houston mg@uh.edu
Mary Silber, Northwestern University msilber@northwestern.edu

9:00 a.m.
Networkology.
Adilson E. Motter*, Northwestern University
(103037392) 
9:30 a.m.
Modules and roles: towards a cartography of complex biological networks.
Roger Guimera*, Northwestern University
(10309274) 
10:00 a.m.
Delay Differential Equation Model of Cellular Protein Translation from First Principles.
Luis MieryTeran, Northwestern University and EPFL
Mary Silber*, Engineering Sciences and Applied Mathematics, Northwestern University
Vassily Hatzimanikatis, Ecole Polytechnique Federale de Lausanne (EPFL)
(103092157) 
10:30 a.m.
Noiseinduced limit cycle transitions in a coupled oscillator network.
Peter J. Thomas*, Case Western University
(103092428)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:55 a.m.
Special Session on Hopf Algebras and Related Areas, I
Room 1210, Lewis Center
Organizers:
Yevgenia Kashina, DePaul University ykashina@condor.depaul.edu
Leonid Krop, DePaul University lkrop@condor.depaul.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
David E. Radford, University of Illinois at Chicago radford@uic.edu

9:00 a.m.
Group grading and Hopf actions on algebras.
Yuri Bahturin, Memorial University of Newfoundland
Mikhail Kochetov*, Memorial University of Newfoundland
Susan Montgomery, University of Southern California
(103017301) 
9:30 a.m.
Characters of projective modules and invariants of the adjoint action.
Miriam Cohen*, Ben Gurion University
Sara Westreich, Bar Ilan University
(103016107) 
10:00 a.m.
A Verlinde type formula for factorizable ribbon Hopf algebras.
Sara Westreich*, Bar Ilan University
Miriam Cohen, Ben Gurion University
(103016106) 
10:30 a.m.
Some combinatorial identities via Hopf algebra methods.
Earl J Taft*, Rutgers University
(10301646)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:50 a.m.
Special Session on Extremal and Probabilistic Combinatorics, I
Room 1004, Lewis Center
Organizers:
Jozsef Balogh, University of Illinois at UrbanaChampaign jobal@math.uiuc.edu
Dhruv Mubayi, University of Illinois at Chicago mubayi@math.uic.edu

9:00 a.m.
Discussion 
9:30 a.m.
On hypergraph Tur\'an numbers.
Linyuan Lu, University of South Carolina
Yi Zhao*, Georgia State University
(103005136) 
10:00 a.m.
On families of subsets with a forbidden subposet.
Jerrold R. Griggs, University of South Carolina
Linyuan Lu*, Univeristy of South Carolina
(103005390) 
10:30 a.m.
Packing of graphs with small product of sizes.
Alenxandr V. Kostochka, University of Illinois at UrbanaChampaign
Gexin Yu*, Vanderbilt University
(103005249)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:45 a.m.
Special Session on Algebraic Geometry, I
Room 8209, DePaul Center
Organizers:
Lawrence Man Hou Ein, University of Illinois at Chicago ein@math.uic.edu
Anatoly S. Libgober, University of Illinois at Chicago libgober@math.uic.edu

9:00 a.m.
The Kawanoue program: an approach toward resolution of singularities in positive characteristic.
Kenji Matsuki*, Purdue University
(103014149) 
10:00 a.m.
Limits of log canonical thresholds.
Tommaso de Fernex, University of Utah
Mircea I Mustata*, University of Michigan
(103014160)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:50 a.m.
Special Session on Ergodic Theory and Symbolic Dynamical Systems, I
Room 8014, DePaul Center
Organizers:
Ayse A. Sahin, DePaul University asahin@condor.depaul.edu
Ilie D. Ugarcovici, DePaul University iugarcov@depaul.edu

9:00 a.m.
Multicorrelations and Nilsequences.
Bryna Kra*, Northwestern University
(103037145) 
9:30 a.m.
New examples of sets of multiple recurrence.
Nikos Frantzikinakis*, University of Memphis
(103037292) 
10:00 a.m.
Weak mixing implies weak mixing of higher orders along tempered functions.
Inger J. H\aa land Knutson*, Agder University College
(10303725) 
10:30 a.m.
Solvability of Rado systems in Dsets.
Alexander Fish*, The Ohio State University
Mathias Beiglböck, Technical University Vienna
Vitaly Bergelson, The Ohio State University
Tomasz Downarowicz, Wroclaw University of Technology
(103037401)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:55 a.m.
Special Session on Automorphic Forms: Representation Theory of padic and Adelic Groups, I
Room 1207, Lewis Center
Organizers:
Mahdi Asgari, Oklahoma State University asgari@math.okstate.edu
Anantharam Raghuram, Oklahoma State University araghur@math.okstate.edu

9:00 a.m.
$L$functions and Functoriality.
James W. Cogdell*, Ohio State University
(103011324) 
10:00 a.m.
Sign Changes for Hecke eigenvalues of Siegel cusp forms of degree 2.
Ameya Pitale*, University of Oklahoma, Norman
(103011260) 
10:30 a.m.
On the Fourier coefficients of automorphic foms on GL(2).
Muthukrishnan Krishnamurthy*, University of Iowa
(103011372)

9:00 a.m.

Friday October 5, 2007, 9:00 a.m.10:50 a.m.
Special Session on Wave Propagation from Mathematical and Numerical Viewpoints, I
Room 8009, DePaul Center
Organizers:
Gabriel Koch, University of Chicago koch@math.uchicago.edu
Catalin Constantin Turc, Caltech and University of North Carolina at Charlotte turc@acm.caltech.edu
Nicolae Tarfulea, Purdue University Calumet tarfulea@calumet.purdue.edu

9:00 a.m.
Some Mathematical Problems in Optics: A Preliminary Report.
Gang Bao*, Michigan State University
(103078278) 
9:30 a.m.
Decay rates for partially dissipative hyperbolic systems.
Enrique Zuazua Iriondo*, IMDEAMatemáticas & Universidad Autónoma de Madrid
(10303542) 
10:00 a.m.
Global wellposedness in the energy space for the KadomstevPetviashvili I equation.
Carlos E. Kenig*, Department of Mathematics, University of Chicago
(10303567) 
10:30 a.m.
A semiclassical transport model for thin quantum barrier.
Shi Jin*, University of WisconsinMadison
Kyle Novak, Air Force Institute of Technology
(103065209)

9:00 a.m.

Friday October 5, 2007, 9:30 a.m.10:50 a.m.
Special Session on The Euler and NavierStokes Equations, I
Room 8005, DePaul Center
Organizers:
Alexey Cheskidov, University of Michigan acheskid@umich.edu
Susan J. Friedlander, University of Illinois at Chicago susan@math.uic.edu
Roman Shvydkoy, University of Illinois at Chicago shvydkoy@math.uic.edu

9:30 a.m.
A KdvKdVtype Boussinesq system  from the energy level to analytic spaces.
Jerry L Bona, University of Illinois at Chicago
Zoran Grujic*, University of Virginia
Kalisch Henrik, University of Bergen
(103035417) 
10:00 a.m.
Vanishing viscosity with vorticity in a borderline space of Besov type.
Elaine M. Cozzi*, Carnegie Mellon University
James P. Kelliher, Brown University
(103076331) 
10:30 a.m.
3D Vortex Sheets and Water Waves.
David M. Ambrose*, Clemson University
(103035352)

9:30 a.m.

Friday October 5, 2007, 11:10 a.m.12:00 p.m.
Invited Address
Symmetry breaking and synchrony breaking.
Room 8005, DePaul Center
Martin Golubitsky*, University of Houston
(10303405) 
Friday October 5, 2007, 1:30 p.m.2:20 p.m.
Invited Address
Representations of Pointed Hopf Algebras.
Room 8005, DePaul Center
David E. Radford*, University of Illinois at Chicago
(10301604) 
Friday October 5, 2007, 2:30 p.m.4:55 p.m.
Special Session on Sequence Spaces and Transformations, II
Room 1107, Lewis Center
Organizers:
Constantine Georgakis, DePaul University cgeorgak@condor.depaul.edu
Martin Buntinas, Loyola University of Chicago mbuntin@math.luc.edu

2:30 p.m.
Pointwise Fourier Inversion.
Mark A. Pinsky*, Mathematics Department, Northwestern University, Evanston IL 602082730
(10304264) 
3:30 p.m.
Summability Methods and Probabilistic Approximation Operators.
Jerry P. King*, Lehigh University
(10304031) 
4:30 p.m.
On spaces ``close'' to $L^{p}(\mathbb{T})$.
J. Marshall Ash*, DePaul University
Sergey Tikonov, Scuola Normale Superiore
James Tung, DePaul University
(103042187)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:55 p.m.
Special Session on Nonlinear Conservation Laws and Related Problems, II
Room 8010, DePaul Center
Organizers:
Cleopatra Christoforou, University of Houston cleopatra@math.uh.edu
GuiQiang Chen, Northwestern University gqchen@math.northwestern.edu

2:30 p.m.
Transonic steady irrotational flow of a compressible gas.
Marshall Slemrod*, Dept. of Mathematics, University of WisconsinMadison
(10303507) 
3:00 p.m.
Kinetic Formulations and Regularizing Effects in QuasiLinear PDEs.
Eitan Tadmor*, University of Maryland
Terence Tao, UC Los Angeles
(10303518) 
3:30 p.m.
Nonlinear variational systems of wave equations.
John K Hunter*, University of California at davis
(103035201) 
4:00 p.m.
Weak solutions of hydrodynamic equations.
Peter Constantin*, The University of Chicago
(103035216) 
4:30 p.m.
Onsager's conjecture and a Model for Turbulence.
Susan Friedlander*, University of IllinoisChicago and USC
(10307651) 
5:00 p.m.
Boundary behavior of compressible, viscous fluid flows.
Misha Perepeltisa*, Vanderbilt University
(10303559) 
5:30 p.m.
On the existence and uniqueness of a solution to a mixed hyperbolicparabolic freeboundary problem arising in blood flow modeling.
Suncica Canic*, University of Houston
Taebeom Kim, University of Houston
Giovanna Guidoboni, University of Houston
Andro Mikelic, University of Lyon 1
(10303534)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:55 p.m.
Special Session on Analysis and CR Geometry, II
Room 8207, DePaul Center
Organizers:
SongYing Li, University of California Irvine sli@math.uci.edu
Stephen ST Yau, University of Illinois at Chicago yau@uic.edu

2:30 p.m.
CR mappings from Lens spaces to spheres and to hyperquadrics.
John P. D'Angelo*, Univ. of Illinois UrbanaChampaign
(10303277) 
3:00 p.m.
Geometric analysis of the Kohn Laplacian on a family of pseudoconvex hypersurfaces.
DerChen E. Chang*, Georgetown University
(103032411) 
3:30 p.m.
Estimates for the Bergman kernel on monomial polyhedra  preliminary report.
Alexander Nagel*, University of WisconsinMadison
(103032151) 
4:00 p.m.
A fundamental inequality for holomorphic curves into projective varieties.
Min Ru*, University of Houston
(103032303) 
4:30 p.m.
Regularity for the integrability problem for almost CR vector bundles on strongly pseudoconvex real hypersurfaces.
Xianghong Gong*, University of WisconsinMadison
Sidney M. Webster, University of Chicago
(103032116) 
5:00 p.m.
local dynamics of holomorphic diffeomorphisms.
Feng Rong*, Syracuse University
(10303209) 
5:30 p.m.
Coupled Singular Perturbations and Periodic Homogenization in Phase Transitions.
Cristina Popovici*, North Dakota State University
(103049410)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.4:50 p.m.
Special Session on Applied Harmonic Analysis, II
Room 8002, DePaul Center
Organizers:
Jonathan Cohen, DePaul University jcohen@math.depaul.edu
Ahmed I. Zayed, DePaul University azayed@math.depaul.edu

2:30 p.m.
Chromatic series of prolate spheroidal waves and wavelets.
Gilbert G Walter*, University of WisconsinMilwaukee
(103041117) 
3:00 p.m.
PaleyWienerType Theorem in a Hilbert Space.
Ahmed I Zayed*, DePaul University
Isaac Pesenson, Temple University
(103042236) 
3:30 p.m.
Optimal NonLinear Models for Compressed Sensing and Sampling.
Akram Aldroubi*, Vanderbilt University
Carlos Cabrelli, Dept. of Mathematics, University of Buenos Aires, Argentina
Ursula Molter, Dept. of Mathematics, University of Buenos Aires, Argentina
(103041396) 
4:00 p.m.
Discrete Fourier Transform on compact manifolds and finite graphs.
Isaac Pesenson*, Department of Mathematics CCP and Temple University
(10304270) 
4:30 p.m.
Lagrange Interpolation by Periodic Prolate Spheroidal Wavelets.
Xiaoping Shen*, Ohio University
(103042159)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:20 p.m.
Special Session on Singular Integrals and Related Problems, II
Room 8011, DePaul Center
Organizers:
Laura De Carli, Florida International University decarlil@fiu.edu
A. M. Stokolos, DePaul University astokolo@condor.depaul.edu

2:30 p.m.
Sharp $A_1$ bounds for CalderónZygmund operators and the relationship with a problem of Muckenhoupt and Wheeden.
Carlos Pérez*, Universidad de Sevilla (Spain) and Kansas University
Andrei Lerner, Universidad de Sevilla
Sheldy Ombrosi, Universidad Nacional del Sur, Bahia Blanca and Universidad de Sevilla
(103042348) 
3:00 p.m.
Radially symmetric intersection bodies with an (n1)dimesional face.
Maria Alfonseca*, North Dakota State University
Dmitry Ryabogin, Kansas State University
Artem Zvavitch, Kent State University
(103052366) 
3:30 p.m.
Kakeya Sets and Directional Maximal Operators in the Plane.
Michael Bateman*, Indiana University
(103042262) 
4:00 p.m.
Tauberian conditions for geometric maximal operators.
Paul Alton Hagelstein*, Baylor University
Alexander Stokolos, De Paul University
(103042130) 
5:00 p.m.
Restriction for curves and surfaces.
Sarah N Ziesler*, University of Chicago
(10304275)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.4:50 p.m.
Special Session on Geometric Combinatorics, II
Room 1005, Lewis Center
Organizers:
Caroline J. Klivans, University of Chicago cjk@math.uchicago.edu
Kathryn Nyman, Loyola University Chicago knyman@luc.edu

2:30 p.m.
Face numbers of simplicial manifolds.
Isabella Novik*, Department of Mathematics, University of Washington
Edward B Swartz, Department of Mathematics, Cornell University
(103005305) 
3:00 p.m.
Closed geodesics and quasigeodesics on convex surfaces.
Igor Pak*, MIT
(103052194) 
3:30 p.m.
Convex hull realizations of the multiplihedra.
Stefan A. Forcey*, Tennessee State University
(10300544) 
4:00 p.m.
A simplicial matrixtree theorem, I. General results.
Art M Duval, University of Texas, El Paso
Caroline Klivans, University of Chicago
Jeremy L Martin*, University of Kansas
(103005143) 
4:30 p.m.
A Simplicial matrixtree theorem, II. Examples.
Art Duval*, University of Texas at El Paso
Caroline J. Klivans, University of Chicago
Jeremy L. Martin, University of Kansas
(103005101)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.6:15 p.m.
Special Session on Mathematical Modeling and Numerical Methods, I
Room 1108, Lewis Center
Organizers:
Atife Caglar, University of WisconsinGreen Bay caglara@uwgb.edu

2:30 p.m.
A Finite Element Approximation of NavierStokesAlpha Model.
Atife Caglar*, Assistant Professor
(103065398) 
3:30 p.m.
Breaking the Curse of Dimensionality with Lattice Designs.
Fred J Hickernell*, Department of Applied Mathematics, Illinois Institute of Technology, Chicago, IL
(103065358) 
4:30 p.m.
Numerical Analysis and Computational Testing of a Leraydeconvolution Turbulence Model.
Leo Rebholz*, University Of Pittsburgh
W Layton, University of Pittsburgh
M Neda, University of NevadaLas vegas
C Manica, Federal University of Rio Grande do Sul
(103065409) 
5:30 p.m.
On The Numerical Solution of Parabolic Stochastic Differential Equation.
Mehmet E San*, Fatih University/Istanbul/Turkey
(10303536)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:50 p.m.
Special Session on Differential Geometry and Its Applications, I
Room 8206, DePaul Center
Organizers:
Jianguo Cao, University of Notre Dame cao.7@nd.edu

2:30 p.m.
Blocking geodesics  a survey of recent results.
Ben Schmidt*, U. of Chicago
(103051273) 
3:00 p.m.
Infinitedimensional steepest descent flow invariants and related nonlinear ordinary differential equations.
Anders Linn\'er*, Northern Illinois University
(103058146) 
3:30 p.m.
Optimization of the Distortion Energy Functional over Homotopy Classes of Diffeomorphisms.
Oksana Bihun*, Department of Mathematics, University of MissouriColumbia
Carmen Chicone, Department of Mathematics, University of MissouriColumbia
(10305324) 
4:00 p.m.
Constant Mean Curvature Surfaces with Symmetries.
Hongyou Wu*, Northern Illinois University
(103053270) 
4:30 p.m.
Bismut's Formula for Heat Kernels and Its Generalizations.
Elton P Hsu*, Northwestern University
(103053144) 
5:00 p.m.
Solution of first order second degree quadratic differential equation.
Ali A. Salim*, Al nahrain University / faculity of engineering
(10303410) 
5:30 p.m.
Insecurity and the growth of the number of geodesics between two points.
Keith Burns*, Northwestern University
Eugene Gutkin, IMPA/Uniwersytet Mikolaja Kopernika
(10305386)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:50 p.m.
Special Session on Numerical and Symbolic Techniques in Algebraic Geometry and Its Applications, II
Room 1110, Lewis Center
Organizers:
GianMario Besana, DePaul University gbesana@cti.depaul.edu
Jan Verschelde, University of Illinois at Chicago jan@math.uic.edu
Zhonggang Zeng, Northeastern Illinois University zzeng@neiu.edu

2:30 p.m.
Finding All Solutions to Dynamic Stochastic Games.
Kenneth L. Judd*, Hoover Institution, Stanford University
Karl Schmedders, Kellog School of Management, Northwestern University
(103091421) 
3:00 p.m.
Regeneration, adaptive multiprecision and Bertini.
Jonathan D Hauenstein*, University of Notre Dame
(103014379) 
3:30 p.m.
Computing the GCD of Ore Polynomials.
Zhonggang Zeng, Northeastern Illinois University
Yang Zhang*, DePaul University
(103016405) 
4:00 p.m.
Break 
4:30 p.m.
Numerical primary decomposition.
Anton Leykin*, IMA, University of Minnesota
(103014376) 
5:00 p.m.
Computing Critical Points by Continuation.
Kathy Wei Piret*, University of Illinois at Chicago, Dept of Math, Stat & CS
Jan Verschelde, University of Illinois at Chicago, Dept. of Math, Stat & CS
(103065325) 
5:30 p.m.
Induction for secant varieties of Segre varieties.
Hirotachi Abo*, University of Idaho
Giorgio Ottaviani, University of Florence
Chris Peterson, Colorado State University
(103014199)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:50 p.m.
Special Session on Algebraic Coding Theory (in honor of Harold N. Ward's retirement), II
Room 1217, Lewis Center
Organizers:
Jay A. Wood, Western Michigan University jay.wood@wmich.edu

2:30 p.m.
New Negative Latin Square Type Partial Difference Sets in Nonelementary Abelian 2groups and 3groups.
John B Polhill*, Bloomsburg University of Pennsylvania
(10300517) 
3:00 p.m.
Crossover of aperiodic autocorrelation functions for quaternary sequences.
James A Davis*, University of Richmond
Pohl Michael, University of Richmond
(103005304) 
3:30 p.m.
Loose ends.
Harold N. Ward*, University of Virginia
(10309492) 
4:00 p.m.
Applications of Quadratic Forms in Coding Theory.
Gary McGuire*, University College Dublin
(103094374) 
4:30 p.m.
HartmannTzengtype Bounds for Cyclic Codes.
Nigel Boston*, University of Wisconsin, Madison
(103014258) 
5:00 p.m.
LDPC codes from voltage graphs.
Christine A. Kelley, The Ohio State University
Judy L. Walker*, University of Nebraska
(103094355) 
5:30 p.m.
On the dimensions of certain LDPC codes based on $q$regular bipartite graphs.
Peter Sin, University of Florida
Qing Xiang*, University of Delaware
(103094171)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:50 p.m.
Special Session on Algebraic Combinatorics: Association Schemes and Related Topics, II
Room 1216, Lewis Center
Organizers:
Sung Y. Song, Iowa State University sysong@iastate.edu
Paul Terwilliger, University of Wisconsin terwilli@math.wisc.edu

2:30 p.m.
Euclidean $t$designs.
Etsuko Bannai*, Faculty of Mathematics, Graduate School, Kyushu University
(103005247) 
3:00 p.m.
Delsarte LP bounds for complex systems of lines and subspaces.
Aidan Roy*, University of Calgary
(103005404) 
3:30 p.m.
Perfect matchings in regular graphs from eigenvalues.
Sebastian M. Cioab\u{a}*, University of California, San Diego
David A. Gregory, Queen's University
Willem H. Haemers, University of Tilburg
(103005340) 
4:00 p.m.
Association schemes and set partition systems.
Karen Meagher*, University of Regina
(103005121) 
4:30 p.m.
A characterization of Qpolynomial trianglefree distanceregular graphs with an eigenvalue multiplicity equal to the valency.
Aleksandar Jurisic*, Faculty of Computer and Information Science
(103005400) 
5:00 p.m.
Discussion 
5:30 p.m.
On schemes which contain a constrained set of involutions.
PaulHermann Zieschang*, University of Texas at Brownsville
(103005427)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.4:50 p.m.
Special Session on Graph Theory, II
Room 1214, Lewis Center
Organizers:
Hemanshu Kaul, Illinois Institute of Technology kaul@iit.edu
Michael J. Pelsmajer, Illinois Institute of Technology pelsmajer@iit.edu

2:30 p.m.
Acquisition number of graphs.
Timothy D. LeSaulnier, University of Illinois  Urbana
Noah Prince, University of Illinois  Urbana
Paul S. Wenger, University of Illinois  Urbana
Douglas B. West*, University of Illinois  Urbana
Pratik Worah, University of Illinois  Urbana
(103005256) 
3:00 p.m.
$(\alpha,k)$balanced graphs.
A. Brieden, Universit\"at der Bundeswehr M\"unchen
Z. F\"uredi, University of Illinois, UrbanaChampaign & Renyi Institute of Mathematics
A. K\"undgen, Cal State San Marcos
R. Ramamurthi*, Cal State San Marcos
(103005416) 
3:30 p.m.
On Vizing's Independence Number Conjecture of edge chromatic critical graphs.
Yue Zhao*, Department of Mathematics, University of Central Florida
(10300572) 
4:00 p.m.
Identifying Codes in $q$ary hypercube.
SeogJin Kim*, Konkuk University
JonLark Kim, University of Louisville
(103005257) 
4:30 p.m.
On a generalization of the localglobal theorem for isoperimetric orders.
Sergei L Bezrukov*, University of Wisconsin  Superior
Miquel Rius, Universitat Politecnica de Catalunya
Oriol Serra, Universitat Politecnica de Catalunya
(103005316)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.6:20 p.m.
Special Session on Free Resolutions, I
Room 1007, Lewis Center
Organizers:
Noam Horwitz, Cornell University nh54@cornell.edu
Irena Peeva, Cornell University ivp1@cornell.edu

2:30 p.m.
Specializations of Ferrers ideals.
Alberto Corso, University of Kentucky, Department of Mathematics
Uwe Nagel*, University of Kentucky, Department of Mathematics
(103013238) 
3:00 p.m.
Tetrahedral curves via graphs and Alexander duality.
Christopher A Francisco*, Oklahoma State University
(10301357) 
3:30 p.m.
Sparse filter regular sequences and extremal Betti numbers.
Giulio Caviglia*, Purdue University
(103013230) 
4:00 p.m.
Double Points on a Pair of Lines.
Susan Marie Cooper*, California Polytechnic State University
Brian Harbourne, University of NebraskaLincoln
Zachariah Teitler, Texas A&M University
(103013312) 
4:30 p.m.
Minimal Free Resolutions and Asymptotic Behavior of MultiGraded Regularity.
Brent D Strunk*, University of Louisiana At Monroe
Huy Tai Ha, Tulane University
(103013132) 
5:00 p.m.
Multigraded modules and the topology of representable matroids.
Amanda Beecher, United States Military Academy at West Point
Alexandre Tchernev*, University at Albany, SUNY
(103013245) 
5:30 p.m.
Cohomology of connected sums of artinian Gorenstein rings.
Luchezar L. Avramov, University of Nebraska  Lincoln
W. Frank Moore*, University of Nebraska  Lincoln
(103013215) 
6:00 p.m.
Discussion

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:55 p.m.
Special Session on Model Theory of Nonelementary Classes, II
Room 1106, Lewis Center
Organizers:
John T. Baldwin, University of Illinois at Chicago jbaldwin@uic.edu
David W. Kueker, University of Maryland dwk@math.umd.edu
Rami Grossberg, Carnegie Mellon University rami@cmu.edu

2:30 p.m.
Stability, simplicity, and Banach space geometry.
Jose N Iovino*, The University of Texas at San Antonio
(103003218) 
3:30 p.m.
Galois Types and Topology.
Michael J Lieberman*, Department of Mathematics, University of Michigan
(103003251) 
4:00 p.m.
On Quasiminimal Excellent Classes.
Jonathan Kirby*, University of Oxford
(103003119) 
4:30 p.m.
Few pairs of countable models.
Maryanthe Malliaris*, University of California, Berkeley
(10300373) 
5:00 p.m.
AECs of Abelian Groups.
John Baldwin, University of Illinois at Chicago
Wesley Calvert, Murray State University
John Goodrick*, University of Maryland, College Park
Andres Villaveces, Universidad Nacional de Columbia
Agatha WalczakTypke, University of Vienna
(103003125) 
5:30 p.m.
Recent developments in classification theory of classes of metric structures.
Alex Usvyatsov*, UCLA
(103003386)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.4:25 p.m.
Special Session on Networks, II
Room 1111, Lewis Center
Organizers:
Martin Golubitsky, University of Houston mg@uh.edu
Mary Silber, Northwestern University msilber@northwestern.edu

2:30 p.m.
Social Interactions in Myxobacterial Swarming.
Mark Alber*, Department of Mathematics, University of Notre Dame
(10309276) 
3:00 p.m.
Multiple Attractors and Long Chaotic Transients in SmallWorld Networks of Excitable Neurons.
Hermann Riecke*, Northwestern University
A. Roxin, Universitat Pompeu Fabra
S. Madrug, MPI Complex Systems
(103092431) 
3:30 p.m.
Feedback control of unstable patterns and periodic orbits.
Claire M Postlethwaite*, Engineering Sciences and Applied Mathematics, Northwestern University
Mary Silber, Engineering Sciences and Applied Mathematics, Northwestern University
(103037153) 
4:00 p.m.
Quotient Networks.
Manuela A.D. Aguiar, Faculdade de Economia, Universidade do Porto
Ana Paula S. Dias, Faculdade de Ciencias, Universidade do Porto
Martin Golubitsky, University of Houston
Maria C.A. Leite*, Purdue University
(103034266)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:55 p.m.
Special Session on Hopf Algebras and Related Areas, II
Room 1210, Lewis Center
Organizers:
Yevgenia Kashina, DePaul University ykashina@condor.depaul.edu
Leonid Krop, DePaul University lkrop@condor.depaul.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
David E. Radford, University of Illinois at Chicago radford@uic.edu

2:30 p.m.
The Weyl groupoid of a semisimple YetterDrinfeld module.
H.J. Schneider*, Mathematisches Institut LudwigMaximiliansUniversitaet Muenchen
(103016285) 
3:00 p.m.
Lusztig Isomorphisms for some Drinfeld Doubles.
Istvan Heckenberger*, Mathematisches Institut, Universität München, Germany
(103081255) 
3:30 p.m.
Quantum subgroups of a simple quantum group at roots of 1.
Nicolas Andruskiewitsch*, Universidad Nacional de Cordoba, Argentina
Gaston Andres Garcia, Universidad Nacional de Cordoba, Argentina
(10301711) 
4:00 p.m.
Representations of the Drinfel'd Doubles of a Family of Hopf Algebras.
Leonid Krop*, DePaul University, Chicago, IL
David E. Radford, University of Illinois at Chicago
(103016164) 
4:30 p.m.
Graded deformations and pointed Hopf algebras.
Mitja Mastnak*, University of Waterloo
Sarah J Witherspoon, Taxas A&M University
(103016156) 
5:00 p.m.
Coideal subalgebras in quantum groups.
Vladislav Kharchenko*, Universidad Nacional Automoma de Mexico, FESC.
Alma Virginia Lara Sagahon, Universidad Nacional Autonoma de Mexico, FESC.
(10301643) 
5:30 p.m.
Braided Hopf algebras obtained from coquasitriangular Hopf algebras.
Margaret Beattie*, Mount Allison University
Daniel Bulacu, University of Bucharest
(10301696)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:50 p.m.
Special Session on Extremal and Probabilistic Combinatorics, II
Room 1004, Lewis Center
Organizers:
Jozsef Balogh, University of Illinois at UrbanaChampaign jobal@math.uiuc.edu
Dhruv Mubayi, University of Illinois at Chicago mubayi@math.uic.edu

2:30 p.m.
Nearly optimal embeddings of trees.
Benny Sudakov, Princeton University
Jan Vondrak*, Princeton University
(10300569) 
3:00 p.m.
An extension of ErdosStone theorem.
Vladimir Nikiforov*, University of Memphis
(103005127) 
3:30 p.m.
Negative dependence and Srinivasan's sampling process.
Jonathan Cutler*, Montclair State University
A J Radcliffe, University of NebraskaLincoln
(103005389) 
4:00 p.m.
Break 
4:30 p.m.
Coloring uniform simple hypergraphs with few edges.
Alexandr Kostochka*, University of Illinois at UrbanaChampaign
Mohit Kumbhat, University of Illinois at UrbanaChampaign
(103005162) 
5:00 p.m.
Covering hypergraphs with cuts of minimum total size.
Sebastian M. Cioab\u{a}*, University of California, San Diego
Andr\'{e} K\"{u}ndgen, California State University, San Marcos
(103005338) 
5:30 p.m.
$M$part $L$Sperner families.
Harout Aydinian, Universit\"at Bielefeld
\'Eva Czabarka*, University of South Carolina
P\'eter L Erd\H os, R\'enyi Institute, Hungary
L\'aszl\'o Sz\'ekely, University of South Carolina
(103005377)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:50 p.m.
Special Session on The Euler and NavierStokes Equations, II
Room 8005, DePaul Center
Organizers:
Alexey Cheskidov, University of Michigan acheskid@umich.edu
Susan J. Friedlander, University of Illinois at Chicago susan@math.uic.edu
Roman Shvydkoy, University of Illinois at Chicago shvydkoy@math.uic.edu

2:30 p.m.
Approximation of convectiondiffusion equations with multiple boundary layers.
ChangYeol Jung, Institute for scientific computing and applied mathematics
Roger Temam*, Institute for scientific computing and applied mathematics
(103035142) 
3:00 p.m.
Liouville Theorems and Applications to the Regularity Theory of the NavierStokes Equations.
Gabriel Koch*, University of Chicago
Nicolai Nadirashvili, CNRS, LATP, CMI
Gregory Seregin, Steklov Institute of Mathematics
Vladimir Sverak, University of Minnesota
(103035395) 
3:30 p.m.
Vanishing viscosity limit for incompressible flow around a sufficiently small obstacle.
Dragos Iftimie, Université de Lyon I
Milton C Lopes Filho, IMECCUNICAMP
Helena J Nussenzveig Lopes*, IMECCUNICAMP
(103076408) 
4:00 p.m.
Break 
4:30 p.m.
On the construction of suitable weak solutions of the NavierStokes equations.
JeanLuc Guermond*, Texas A&M University
(10306550) 
5:00 p.m.
Vanishing viscosity limit in boundarydriven 2D flows.
Milton C. Lopes Filho, UniCamp, Campinas, Brazil
Anna L. Mazzucato*, Penn State University
Helena J. Nussenzveig Lopes, UniCamp, Campinas, Brazil
Michael E. Taylor, University of North Carolina, Chapel Hill
(103035120) 
5:30 p.m.
On the regularity of weak solutions of the 3D NavierStokes equations in $B^{1}_{\infty,\infty}$.
Alexey Cheskidov*, University of Chicago
Roman Shvydkoy, University of Illinois
(103035378)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:50 p.m.
Special Session on Smooth Dynamical Systems, II
Room 8012, DePaul Center
Organizers:
Marian Gidea, Northeastern Illinois University mgidea@neiu.edu
Ilie D. Ugarcovici, DePaul University iugarcov@depaul.edu

2:30 p.m.
The compressible fluid twobody problem.
C Chicone*, University of Missouri, Columbia, MO
(103037112) 
3:00 p.m.
Invariant Objects for Dynamical Systems.
John W Robertson*, Wichita State University
(10303729) 
3:30 p.m.
Solenoids and adding machines in Hamiltonian Systems.
Kenneth R. Meyer*, University of Cincinnati
(10303719) 
4:00 p.m.
Solenoidal minimal sets in foliations.
Steven Hurder*, University of Illinois at Chicago
(10303794) 
4:30 p.m.
Pathological foliations, revisited.
Amie Wilkinson*, Northwestern University
(103037287) 
5:00 p.m.
Homology of Invariant Foliations.
Radu Saghin*, University of Toronto
(103037241) 
5:30 p.m.
Harmonic functions and Brownian motion on foliated manifolds.
Renato Feres*, Washington University
Sergio Fenley, Florida State University
Kamlesh Parwani, University Of Missouri, St. Louis
(103037174)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:50 p.m.
Special Session on Ergodic Theory and Symbolic Dynamical Systems, II
Room 8014, DePaul Center
Organizers:
Ayse A. Sahin, DePaul University asahin@condor.depaul.edu
Ilie D. Ugarcovici, DePaul University iugarcov@depaul.edu

2:30 p.m.
Reduction theory and coding of geodesics.
Svetlana Katok*, The Pennsylvania State University
(103037354) 
3:00 p.m.
Selfsimilar tiling systems, topological factors and expansion constants.
Maria Isabel Cortez*, Universidad de Santiago de Chile
Fabien Durand, Université de Picardie Jules Verne, France.
(103037231) 
3:30 p.m.
The dynamics of model sets.
E Arthur Robinson*, George Washington University
(103037328) 
4:00 p.m.
Weak equivalence for shifts of finite type.
Andrew Dykstra*, Colorado State University
Joseph Barth, University of Maryland
(103037168) 
4:30 p.m.
Property A and Krieger equivalence classes in higher dimensional subshifts.
Sam Lightwood*, Western Connecticut State University
(103037412) 
5:00 p.m.
A class of higher dimensional shifts of finite type which factor onto the full shift.
Angela V Desai*, University of Montevallo
(103037363) 
5:30 p.m.
RecursiveTheoretic Aspects of Multidimensional Symbolic Dynamics.
Michael Hochman*, Princeton University
(103037259)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:45 p.m.
Special Session on Automorphic Forms: Representation Theory of padic and Adelic Groups, II
Room 1207, Lewis Center
Organizers:
Mahdi Asgari, Oklahoma State University asgari@math.okstate.edu
Anantharam Raghuram, Oklahoma State University araghur@math.okstate.edu

2:30 p.m.
The local Langlands conjecture for GSp(4).
Shuichiro Takeda*, University of California, San Diego/Ben Gurion University of the Negev.
Wee Teck Gan, University of California, San Diego
(103011269) 
3:00 p.m.
Liftings of Representations of Finite Groups with Applications to $p$adic Base Change.
Joshua M. Lansky*, American University
Jeffrey D. Adler, American University
(103022179) 
3:30 p.m.
Shalika models and functoriality.
Yujun Qin*, Department of Mathematics, East China Normal University
(103020138) 
4:00 p.m.
Determining "good test vectors" for the doubling method applied to the groups ${\rm Sp}_2(F)$ and $\widetilde{{\rm Sp}_2}(F)$.
Christian A Zorn*, The Ohio State University
(103022294) 
4:30 p.m.
The existence of Bessel models for GSp(4).
Ramin TaklooBighash*, University of Illinois at Chicago
(103011272) 
5:00 p.m.
Some Local Consequences of Functoriality.
Freydoon Shahidi*, Purdue University
(103011279)

2:30 p.m.

Friday October 5, 2007, 2:30 p.m.5:50 p.m.
Special Session on Wave Propagation from Mathematical and Numerical Viewpoints, II
Room 8009, DePaul Center
Organizers:
Gabriel Koch, University of Chicago koch@math.uchicago.edu
Catalin Constantin Turc, Caltech and University of North Carolina at Charlotte turc@acm.caltech.edu
Nicolae Tarfulea, Purdue University Calumet tarfulea@calumet.purdue.edu

2:30 p.m.
Twodimensional water wave patterns.
Min Chen*, Purdue University
(10307684) 
3:00 p.m.
Symmetry Breaking of Ground States in Nonlinear Schroedinger Equation.
Eduard Kirr*, University of Illinois at UrbanaChampaign
M. I. Weinstein, Columbia University
P. Kevrekidis, University of Massachussetts
E. Shlizerman, Weizmann Institute
(103035204) 
3:30 p.m.
On a class of nonlinear waveparticle solutions of integrable systems.
Mikhail Kovalyov*, University of Alberta, Canada
(103035254) 
4:00 p.m.
Break 
4:30 p.m.
Travel Time and Tensor Tomography.
Plamen Stefanov*, Purdue University
(103053228) 
5:00 p.m.
A Coupled System of ODEs and Quasilinear Hyperbolic PDEs Arising in a Multiscale Blood Flow Model.
Wei H Ruan*, Purdue University Calumet
(103035296) 
5:30 p.m.
Maxwell's equations in nonlinear media.
Aurelia Minut*, U.S. Naval Academy
(103035351)

2:30 p.m.

Friday October 5, 2007, 3:00 p.m.5:50 p.m.
Special Session on Algorithmic Probability and Combinatorics, II
Room 1006, Lewis Center
Organizers:
Manuel Lladser, University of Colorado lladser@colorado.edu
Robert S. Maier, University of Arizona rsm@math.arizona.edu

3:00 p.m.
Transforming and reducing Dfinite combinatorial sequences.
Robert S. Maier*, University of Arizona
(103005403) 
3:30 p.m.
Systematic Asymptotic Enumeration of Regular Structures.
Marni Mishna*, Dept. Mathematics, Simon Fraser University
(103005357) 
4:00 p.m.
On the Congruences of Combinatorial Numbers.
ShuChung Liu*, Department of Applied Mathematics, National Hsinchu University of Education, Hsinchu, Taiwan
SenPeng Eu, Department of Applied Mathematics, National University of Kaohsiung, Kaohsiung, Taiwan
YeongNan Yeh, Institute of Mathematics, Academia Sinica, Taipei, Taiwan
(103005387) 
4:30 p.m.
Planar tableaux in a strip as an exactly solvable model.
Yuliy Baryshnikov*, Bell Labs
Dan Romik, Hebrew University
(103060234) 
5:00 p.m.
Asymptotic Enumeration of Trapping Sets in Random Tanner Graph Ensembles.
Olgica Milenkovic*, University of Illinois, UrbanaChampaign
Emina Soljanin, AlcatelLucent, Bell Labs Technology
Philip Whiting, AlcatelLucent, Bell Labs Technologies
(103005233) 
5:30 p.m.
Discussion

3:00 p.m.

Friday October 5, 2007, 3:00 p.m.5:45 p.m.
Special Session on Algebraic Geometry, II
Room 8209, DePaul Center
Organizers:
Lawrence Man Hou Ein, University of Illinois at Chicago ein@math.uic.edu
Anatoly S. Libgober, University of Illinois at Chicago libgober@math.uic.edu

3:00 p.m.
Strong exceptional collections of line bundles on toric del Pezzo DM stacks.
Lev A. Borisov*, University of Wisconsin
Zheng Hua, University of Wisconsin
(103014190) 
4:00 p.m.
Nonflat base change and the orbifold HKR isomorphism.
Andrei H. C\u ald\u araru*, University of Wisconsin, Madison
(103014339) 
5:00 p.m.
Numerical inequalities via syzygies and generic vanishing.
Mihnea Popa*, University of Illinois at Chicago
(103014140)

3:00 p.m.
Saturday October 6, 2007

Saturday October 6, 2007, 7:30 a.m.12:00 p.m.
Meeting Registration
Lobby (8th Floor), Lewis Center 
Saturday October 6, 2007, 7:30 a.m.12:00 p.m.
Exhibit and Book Sale
Lobby (8th Floor), Lewis Center 
Saturday October 6, 2007, 8:00 a.m.10:50 a.m.
Special Session on Free Resolutions, II
Room 1007, Lewis Center
Organizers:
Noam Horwitz, Cornell University nh54@cornell.edu
Irena Peeva, Cornell University ivp1@cornell.edu

8:00 a.m.
On the Multiplicity Conjecture for Simplicial Complexes.
Michael Goff*, University of Washington
(103005115) 
8:30 a.m.
Descent via Koszul extensions.
Lars Winther Christensen*, Texas Tech University
Sean SatherWagstaff, North Dakota State University
(103013242) 
9:00 a.m.
CohenMacaulay Multigraded Modules.
CY Jean Chan, Purdue University
Christine Cumming*, University of Louisiana at Monroe
Huy Tai Ha, Tulane University
(103013133) 
9:30 a.m.
Resolutions over short local rings.
Luchezar L Avramov, University of Nebraska, Lincoln
Srikanth B Iyengar*, University of Nebraska, Lincoln
Liana M Sega, University of Missouri, Kansas City
(10301353) 
10:00 a.m.
The Goto numbers of parameter ideals.
William Heinzer, Purdue University
Irena Swanson*, Reed College
(103013268) 
10:30 a.m.
Minimal Homogenous Liaison and Licci Ideals.
Craig Huneke, University of Kansas
Juan Migliore*, University of Notre Dame
Uwe Nagel, University of Kentucky
Bernd Ulrich, Purdue University
(103013181)

8:00 a.m.

Saturday October 6, 2007, 8:00 a.m.10:50 a.m.
Special Session on Smooth Dynamical Systems, III
Room 8012, DePaul Center
Organizers:
Marian Gidea, Northeastern Illinois University mgidea@neiu.edu
Ilie D. Ugarcovici, DePaul University iugarcov@depaul.edu

8:00 a.m.
Measure rigidity for smooth group actions: recent results and perspectives.
Anatole Katok*, The Pennsylvania State University
(103037350) 
9:00 a.m.
Smooth Rigidity for Lattice Actions.
Theron J Hitchman*, University of Northern Iowa
(103037246) 
9:30 a.m.
Liv\v{s}ic Theory for Cocycles taking Values in a Diffeomorphism Group.
Alistair Windsor*, University of Memphis
(103037237) 
10:00 a.m.
Logarithm laws for function fields.
Jayadev S Athreya, Princeton University
Anish Ghosh*, The University of Texas at Austin
Amritanshu Prasad, The Institute of Mathematical Sciences, Chennai.
(103037150) 
10:30 a.m.
Numerical Computation of Invariant Manifolds and Applications.
Sheldon E Newhouse*, Mathematics Department, Michigan State University
(103037264)

8:00 a.m.

Saturday October 6, 2007, 8:30 a.m.10:55 a.m.
Special Session on Sequence Spaces and Transformations, III
Room 1107, Lewis Center
Organizers:
Constantine Georgakis, DePaul University cgeorgak@condor.depaul.edu
Martin Buntinas, Loyola University of Chicago mbuntin@math.luc.edu

8:30 a.m.
Hausdorff Transformations and Exchangeable Random Variables.
Constantine Georgakis*, Department of Mathematics, DePaul University, Chicago, IL
(10304637) 
9:30 a.m.
Spectra of Hausdorff matrices and other transformations.
B. E. Rhoades*, Indiana University, Bloomington, IN 474057106
(10304055) 
10:30 a.m.
Densities on $\mathbf{N}\times\mathbf{N}$ constructed from regular summability matrices.
J. Connor*, Ohio University
J. Kline, Washington and Jefferson University
(103040223)

8:30 a.m.

Saturday October 6, 2007, 8:30 a.m.10:50 a.m.
Special Session on Algorithmic Probability and Combinatorics, III
Room 1006, Lewis Center
Organizers:
Manuel Lladser, University of Colorado lladser@colorado.edu
Robert S. Maier, University of Arizona rsm@math.arizona.edu

8:30 a.m.
Fourier analysis and statistics on groups.
Nicholas Eriksson*, Department of Statistics, University of Chicago
Persi Diaconis, Departments of Mathematics and Statistics, Stanford University
(103062137) 
9:00 a.m.
Minimal Markovian embeddings of nonMarkovian random strings.
Manuel E. Lladser*, Applied Mathematics, University of Colorado at Boulder
(103060243) 
9:30 a.m.
Forbidden patterns in telling random from deterministic time series.
Sergi Elizalde*, Dartmouth College
(103005321) 
10:00 a.m.
New Dumont permutations.
Alexander Burstein*, Howard University
Walter Stromquist, Swarthmore College
(103005391) 
10:30 a.m.
Statistics on permutation tableaux.
Pawel Hitczenko*, Drexel University
(103060284)

8:30 a.m.

Saturday October 6, 2007, 9:00 a.m.10:55 a.m.
Special Session on Nonlinear Conservation Laws and Related Problems, III
Room 8010, DePaul Center
Organizers:
Cleopatra Christoforou, University of Houston cleopatra@math.uh.edu
GuiQiang Chen, Northwestern University gqchen@math.northwestern.edu

9:00 a.m.
Hyperbolic Balance Laws with Weak Dissipation.
Constantine M. Dafermos*, Brown University
(10303532) 
9:30 a.m.
Removable singularities of divergence free vector fields and related equations with measure data.
Monica Torres*, Purdue University
Cong Phuc Nguyen, Purdue University
(10303530) 
10:00 a.m.
On contact discontinuity for JinXin relaxation system.
Ronghua Pan*, School of Mathematics, Georgia Institute of Technology
Feimin Huang, Institute of Applied Math., Chinese Academy of Sciences
Yi Wang, Institute of Applied Mathematics, Chinese Academy of Sciences
(10303554) 
10:30 a.m.
Particlesize segregation in granular flow: a conservation law in two space dimensions.
Michael Shearer*, North Carolina State University
(10303516)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:55 a.m.
Special Session on Analysis and CR Geometry, III
Room 8207, DePaul Center
Organizers:
SongYing Li, University of California Irvine sli@math.uci.edu
Stephen ST Yau, University of Illinois at Chicago yau@uic.edu

9:00 a.m.
Local integrability problems for CR structures and vector bundles.
X. Gong, University of Wisconsin
S. M. Webster*, University of Chicago
(103032341) 
9:30 a.m.
Real hypersurfaces of low and constant Levi rank.
Peter Ebenfelt*, UC, San Diego
Salah Baouendi, UC, San Diego
Dmitri Zaitsev, Trinity College, Dublin
(103032202) 
10:00 a.m.
The Leray transform in two dimensions: spectral properties, transformation laws and duality.
David E. Barrett*, University of Michigan
Loredana Lanzani, University of Arkansas
(103032326) 
10:30 a.m.
Rational maps between balls.
Shanyu Ji*, Department of Mathematics, University of Houston
(103032229)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:50 a.m.
Special Session on Applied Harmonic Analysis, III
Room 8002, DePaul Center
Organizers:
Jonathan Cohen, DePaul University jcohen@math.depaul.edu
Ahmed I. Zayed, DePaul University azayed@math.depaul.edu

9:00 a.m.
Affine synthesis onto Lebesgue and Hardy spaces.
H.Q. Bui, University of Canterbury
R. S. Laugesen*, University of Illinois, UrbanaChampaign
(10304220) 
9:30 a.m.
Orthonormal Wavelets with Integer Matrix Dilations.
Edward N. Wilson*, Washington University in St. Louis
Damir Bakic, University of Zagreb, Zagreb, Croatia
(103042183) 
10:00 a.m.
Independence and redundancy of integer translates of a square integrable function on the reals.
Guido Weiss*, Washington University
Hrvoje Sikic, University of Zagreb
(103042309) 
10:30 a.m.
Custom factorizations of wavelet filter transforms.
Mladen Victor Wickerhauser*, Washington University in Saint Louis, Missouri
(103065239)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:50 a.m.
Special Session on Singular Integrals and Related Problems, III
Room 8011, DePaul Center
Organizers:
Laura De Carli, Florida International University decarlil@fiu.edu
A. M. Stokolos, DePaul University astokolo@condor.depaul.edu

8:30 a.m.
Minimizing analytic capacity and Buffon needle probability on Pictures.
Alexander L Volberg*, Mich. State Univ.
(10303078) 
9:00 a.m.
Discussion 
9:30 a.m.
Modulation Invariant Bilinear T(1) Theorem.
Arpad Benyi, Western Washington University
Ciprian Demeter, UCLA
Andrea R. Nahmod, University of Massachusetts
Christoph M. Thiele, UCLA
Rodolfo H. Torres*, University of Kansas
Paco Villarroya, UCLA
(103042388) 
10:00 a.m.
Bilinear oscillatory integrals along curves.
Xiaochun Li*, University of Illinois at UrbanaChampaign
(103042313) 
10:30 a.m.
The characteristic function of the paraboloid is not a bounded bilinear multiplier.
Maria del Carmen Reguera Rodriguez*, Department of Mathematics, University of Missouri
(103042320)

8:30 a.m.

Saturday October 6, 2007, 9:00 a.m.10:50 a.m.
Special Session on Geometric Combinatorics, III
Room 1005, Lewis Center
Organizers:
Caroline J. Klivans, University of Chicago cjk@math.uchicago.edu
Kathryn Nyman, Loyola University Chicago knyman@luc.edu

9:00 a.m.
Multiplicity free expansions of Schur P functions.
S van Willigenburg*, University of British Columbia
(10300558) 
9:30 a.m.
The hvector of a Lattice Path Matroid.
Jay Schweig*, Cornell University
(103005299) 
10:00 a.m.
Matching polytopes, toric geometry, and the nonnegative part of the Grassmannian.
Alex Postnikov, MIT
David Speyer, MIT
Lauren Williams*, Harvard
(103005180) 
10:30 a.m.
Face vectors of flag complexes.
Andrew D. Frohmader*, University of Washington
(103005345)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:50 a.m.
Special Session on Differential Geometry and Its Applications, II
Room 8206, DePaul Center
Organizers:
Jianguo Cao, University of Notre Dame cao.7@nd.edu

9:00 a.m.
Topology of nonnegatively curved Euclidean hypersurfaces spanning a prescribed boundary.
Stephanie B. Alexander*, University of Illinois at UrbanaChampaign
Mohammad Ghomi, Georgia Institute of Technology
Jeremy A. Wong, University of Toronto
(103053369) 
9:30 a.m.
Harmonic Maps and the Rigidity of Discrete Groups.
Theron J Hitchman*, University of Northern Iowa
David Fisher, Indiana University
(103053253) 
10:00 a.m.
Asymptotic conditions for smooth rigidity.
Chris Connell*, Indiana University
(103053365) 
10:30 a.m.
Symmetric planar intersections characterize quadrics among certain tubes in $\mathbf{R}^3$.
Bruce Solomon*, Indiana University
(103053195)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:50 a.m.
Special Session on Numerical and Symbolic Techniques in Algebraic Geometry and Its Applications, III
Room 1110, Lewis Center
Organizers:
GianMario Besana, DePaul University gbesana@cti.depaul.edu
Jan Verschelde, University of Illinois at Chicago jan@math.uic.edu
Zhonggang Zeng, Northeastern Illinois University zzeng@neiu.edu

9:00 a.m.
The mixed volume computation, A revisit.
TsungLin Lee, Michigan State University, Department of Mathematics
T.Y. Li*, Michigan State University, Department of Mathematics
(103052104) 
9:30 a.m.
A new method for real rootfinding using Gale duality.
Daniel J Bates*, IMA (University of Minnesota)
(103014360) 
10:00 a.m.
Thomae's formula for normal cyclic curves.
Galbodayage Sujeeva Wijesiri*, Oakland University
(10301448) 
10:30 a.m.
Eliminating near multiplicities in polynomial systems: a global approach.
Itnuit JanovitzFreireich, North Carolina State University
Bernard Mourrain, INRIA SophiaAntipolis
Lajos Ronyai, MTA SZTAKI and Budapest University of Technology and Economics
Agnes Szanto*, North Carolina State University
(103008302)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:50 a.m.
Special Session on Algebraic Coding Theory (in honor of Harold N. Ward's retirement), III
Room 1217, Lewis Center
Organizers:
Jay A. Wood, Western Michigan University jay.wood@wmich.edu

9:00 a.m.
Upper Bounds for the length of $s$Extremal Codes over $\mathbb F_2$, $\mathbb F_4$, and $\mathbb F_2 + u\mathbb F_2$.
Sunghyu Han*, Department of Mathematics, University of Louisville
JonLark Kim, Department of Mathematics, University of Louisville
(103094175) 
9:30 a.m.
Coding theory over finite principal ideal rings.
Hamid Kulosman*, University of Louisville
(103094275) 
10:00 a.m.
Codes over rings.
Steven T Dougherty*, University of Scranton
(103094108) 
10:30 a.m.
Charactertheoretic proofs of equivalence theorems.
Jay A. Wood*, Western Michigan University
(10309461)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:50 a.m.
Special Session on Algebraic Combinatorics: Association Schemes and Related Topics, III
Room 1216, Lewis Center
Organizers:
Sung Y. Song, Iowa State University sysong@iastate.edu
Paul Terwilliger, University of Wisconsin terwilli@math.wisc.edu

9:00 a.m.
Association schemes from simple Bol loops.
J. D. H. Smith*, Iowa State University
K. W. Johnson, Penn State University Abington
(103020167) 
9:30 a.m.
On Morphisms of Association Schemes.
Bangteng Xu*, Eastern Kentucky University
(10300556) 
10:00 a.m.
Fusions of character tables of groups and association schemes.
Kenneth W Johnson*, Penn State University, Abington College,
Stephen P Humphries, Brigham Young University
(103020235) 
10:30 a.m.
Nilpotent Table Algebras.
Harvey I. Blau*, Northern Illinois University
Bangteng Xu, Eastern Kentucky University
(103005322)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:50 a.m.
Special Session on Graph Theory, III
Room 1214, Lewis Center
Organizers:
Hemanshu Kaul, Illinois Institute of Technology kaul@iit.edu
Michael J. Pelsmajer, Illinois Institute of Technology pelsmajer@iit.edu

9:00 a.m.
Colorings and Crossings.
Michael O. Albertson*, Smith College
(103005290) 
9:30 a.m.
Graphs with Rotation.
Marcus Schaefer*, DePaul University
Michael Pelsmajer, Illinois Institute of Technology
Daniel Stefankovic, University of Rochester
(103005154) 
10:00 a.m.
On the minor crossing number.
Drago Bokal, University of Ljubljana
\'Eva Czabarka, University of South Carolina
L\'aszl\'o A. Sz\'ekely*, University of South Carolina
Imrich Vrt'o, Institute of Mathematics, Slovak Academy of Sciences
(103005291) 
10:30 a.m.
Constrained coloring problems for planar graphs.
Andr\'e K\"undgen*, Cal State San Marcos
(103005383)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:45 a.m.
Special Session on Model Theory of Nonelementary Classes, III
Room 1106, Lewis Center
Organizers:
John T. Baldwin, University of Illinois at Chicago jbaldwin@uic.edu
David W. Kueker, University of Maryland dwk@math.umd.edu
Rami Grossberg, Carnegie Mellon University rami@cmu.edu

9:00 a.m.
Independence in Finitary Abstract Elementary Classes.
Meeri Kesälä*, University of Illinois at Chicago
(103003276) 
10:00 a.m.
Abstract Elementary Classes and Infinitary Logics.
David W. Kueker*, University of Maryland, College Park
(10300383)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:55 a.m.
Special Session on Hopf Algebras and Related Areas, III
Room 1210, Lewis Center
Organizers:
Yevgenia Kashina, DePaul University ykashina@condor.depaul.edu
Leonid Krop, DePaul University lkrop@condor.depaul.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
David E. Radford, University of Illinois at Chicago radford@uic.edu

9:00 a.m.
Semisimple quasiHopf algebras of prime power dimension are grouptheoretical.
Dmitri Nikshych*, University of New Hampshire
(103016109) 
9:30 a.m.
Lagrangian subcategories and braided tensor equivalences of twisted quantum doubles of finite groups.
Deepak Naidu*, University of New Hampshire
Dmitri Nikshych, University of New Hampshire
(10301623) 
10:00 a.m.
Higher FrobeniusSchur indicators for fusion categories and quasiHopf algebras.
Peter C Schauenburg*, Mathematisches Institut der Universit{\"a}t M{\"u}nchen
SiuHung Ng, Department of Mathematics, Iowa State University
(103016288) 
10:30 a.m.
FrobeniusSchur Indicators and Exponents.
SiuHung Ng*, Iowa State University
Peter Schauenburg, Universit\"at M\"unchen
(10301882)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:50 a.m.
Special Session on Extremal and Probabilistic Combinatorics, III
Room 1004, Lewis Center
Organizers:
Jozsef Balogh, University of Illinois at UrbanaChampaign jobal@math.uiuc.edu
Dhruv Mubayi, University of Illinois at Chicago mubayi@math.uic.edu

9:00 a.m.
Discussion 
9:30 a.m.
Tur\'an's problem for the hypercube.
J Robert Johnson, Queen Mary University of London
John Talbot*, University College London
(10300599) 
10:00 a.m.
Extremal Problems for counting homomorphisms.
Jonathan Cutler, Montclair State University
Andrew J Radcliffe*, University of NebraskaLincoln
(103005315) 
10:30 a.m.
Avoiding induced subgraphs as transversals in vertexpartitions.
Maria Axenovich*, Iowa State University
Ryan Martin, Iowa State University
(103005295)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:45 a.m.
Special Session on Algebraic Geometry, III
Room 8209, DePaul Center
Organizers:
Lawrence Man Hou Ein, University of Illinois at Chicago ein@math.uic.edu
Anatoly S. Libgober, University of Illinois at Chicago libgober@math.uic.edu

9:00 a.m.
On the Hodge filtration of local systems.
Nero Budur*, University of Notre Dame
(103014300) 
10:00 a.m.
Degenerations and the cohomology of homogeneous varieties.
Izzet Coskun*, University of Illinois at Chicago
(103014176)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:50 a.m.
Special Session on Ergodic Theory and Symbolic Dynamical Systems, III
Room 8014, DePaul Center
Organizers:
Ayse A. Sahin, DePaul University asahin@condor.depaul.edu
Ilie D. Ugarcovici, DePaul University iugarcov@depaul.edu

9:00 a.m.
Fluctuations of ergodic sums for horocycle flows on some infinite surfaces.
Francois Ledrappier*, University of Notre Dame
Omri Sarig, Penn. State University
(103037222) 
9:30 a.m.
Almost automorphicity in dynamical systems.
Alica Miller*, University of Louisville
(103037371) 
10:00 a.m.
\textbf{Heaviness} and Symbolic Dynamics.
David Ralston*, Rice University
(10303797) 
10:30 a.m.
A characterization of the Morse minimal set up to topological conjugacy.
Ethan M. Coven, Wesleyan University
Michael Keane*, Wesleyan University
Michelle Lemasurier, Hamilton College
(103037380)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:55 a.m.
Special Session on Automorphic Forms: Representation Theory of padic and Adelic Groups, III
Room 1207, Lewis Center
Organizers:
Mahdi Asgari, Oklahoma State University asgari@math.okstate.edu
Anantharam Raghuram, Oklahoma State University araghur@math.okstate.edu

9:00 a.m.
Survey of affine DeligneLusztig varieties.
Robert E. Kottwitz*, University of Chicago
(103022342) 
10:00 a.m.
NewtonHodge Filtration for SelfDual $F$Crystals.
N. Elizabeth Csima*, University of Chicago
(103014362) 
10:30 a.m.
Residues of Intertwining Operators for Classical Groups.
Steven T Spallone*, Purdue University
(103022323)

9:00 a.m.

Saturday October 6, 2007, 9:00 a.m.10:50 a.m.
Special Session on Wave Propagation from Mathematical and Numerical Viewpoints, III
Room 8009, DePaul Center
Organizers:
Gabriel Koch, University of Chicago koch@math.uchicago.edu
Catalin Constantin Turc, Caltech and University of North Carolina at Charlotte turc@acm.caltech.edu
Nicolae Tarfulea, Purdue University Calumet tarfulea@calumet.purdue.edu

9:00 a.m.
The uniform KornPoincare inequality in thin domains.
Marta Lewicka*, University of Minnesota
(103035286) 
9:30 a.m.
Inverse medium scattering for Maxwell's equations at fixed frequency.
Gang Bao, Michigan State University
Peijun Li*, University of Michigan
(103078250) 
10:00 a.m.
Elastic waves in incompressible anisotropic elasticitysome new results.
Sudhakar E. Nair*, Illinois Institute of Technology, Chicago, Illinois, 60616
(103074336) 
10:30 a.m.
Boundary Perturbation Methods for HighFrequency Acoustic Scattering: Shallow Periodic Gratings.
David P. Nicholls*, University of Illinois at Chicago
Fernando Reitich, University of Minnesota
(103065197)

9:00 a.m.

Saturday October 6, 2007, 9:30 a.m.10:50 a.m.
Special Session on The Euler and NavierStokes Equations, III
Room 8005, DePaul Center
Organizers:
Alexey Cheskidov, University of Michigan acheskid@umich.edu
Susan J. Friedlander, University of Illinois at Chicago susan@math.uic.edu
Roman Shvydkoy, University of Illinois at Chicago shvydkoy@math.uic.edu

9:30 a.m.
Blowup and regularity in some discrete models of the Euler equation.
Alexander Kiselev, University of WisconsinMadison
Andrej Zlatos*, University of Chicago
(103076344) 
10:00 a.m.
On the average energy and average enstrophy of the 3D turbulent flows.
Radu Dascaliuc*, Indiana University
Ciprian Foias, Texas A&M University
Michael S Jolly, Indiana University
(103035356) 
10:30 a.m.
Instability of surface water waves.
Zhiwu Lin*, University of MissouriColumbia
(103076293)

9:30 a.m.

Saturday October 6, 2007, 10:00 a.m.10:25 a.m.
Session on Session for Contributed Papers
Room 1111, Lewis Center

10:00 a.m.
The Sheffer Group, the Riordan Group, and their Characterization.
TianXiao He*, Illinois Wesleyan University
(103005248) 
10:15 a.m.
Group gradings on simple Lie and Jordan algebras and Hopf algebras.
Yuri Bahturin*, Memorial University of Newfoundland
(103016415)

10:00 a.m.

Saturday October 6, 2007, 11:10 a.m.12:00 p.m.
Invited Address
Incidence theory, Fourier analysis and applications to geometric combinatorics and additive number theory.
Room 8005, DePaul Center
Alex Iosevich*, University of Missouri
(10304203) 
Saturday October 6, 2007, 1:30 p.m.2:20 p.m.
Invited Address
Origins and applications of some nonlinear equations in conformal geometry.
Room 8005, DePaul Center
Matthew J. Gursky*, University of Notre Dame
(10303502) 
Saturday October 6, 2007, 2:30 p.m.4:55 p.m.
Special Session on Sequence Spaces and Transformations, IV
Room 1107, Lewis Center
Organizers:
Constantine Georgakis, DePaul University cgeorgak@condor.depaul.edu
Martin Buntinas, Loyola University of Chicago mbuntin@math.luc.edu

2:30 p.m.
Hausdorff Means and Inequalities.
Grahame Bennett*, Indiana University
(103040186) 
3:30 p.m.
Characterizations of the matrices whose norms are determined by their actions on decreasing sequences.
HaoWei Huang*, Indiana University
(103046170) 
4:00 p.m.
Absolute summability methods.
Hamdullah \c{S}evli*, Y\"uz\"unc\"u Yil University, VanTurkey
(103040189) 
4:30 p.m.
AutomorphicInvariant NonDensely Defined\\ Hermitian Contractive Operators.
Miron B Bekker*, Department of Mathematics and Statistics, University of MissouriRolla
(10304621)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.4:55 p.m.
Special Session on Nonlinear Conservation Laws and Related Problems, IV
Room 8010, DePaul Center
Organizers:
Cleopatra Christoforou, University of Houston cleopatra@math.uh.edu
GuiQiang Chen, Northwestern University gqchen@math.northwestern.edu

2:30 p.m.
On the formation of adiabatic shear bands.
Theocharis Baxevanis, University of Crete, Greece
Thodoros Katsaounis, University of Crete, Greece
Athanasios E. Tzavaras*, University of Maryland
(10303522) 
3:00 p.m.
Systems of HamiltonJacobi equations and noncooperative differential games.
Alberto Bressan*, Penn State University
(10303562) 
3:30 p.m.
Transonic flows for full Euler equations in 2D nozzles.
QuiQiang Chen, Northwestern University
Jun Chen*, University of Wisconsin, Madison
Mikhail Feldman, University of Wisconsin, Madison
(10303508) 
4:00 p.m.
Perturbation techniques applied to the parabolic approximation of a boundary Riemann problem.
Laura Valentina Spinolo*, Northwestern University, Evanston, IL
Stefano Bianchini, SISSAISAS, Trieste, Italy
(10303539) 
4:30 p.m.
From the dynamics of gaseous stars to the incompressible Euler equations.
Konstantina Trivisa*, University of Maryland
Donatella Donatelli, University of L'Aquila
(10303540)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:55 p.m.
Special Session on Analysis and CR Geometry, IV
Room 8207, DePaul Center
Organizers:
SongYing Li, University of California Irvine sli@math.uci.edu
Stephen ST Yau, University of Illinois at Chicago yau@uic.edu

2:30 p.m.
Holomorphic approximations in Banach spaces.
Laszlo Lempert*, Purdue University
(103032210) 
3:00 p.m.
Concepts of general position and a Second Main Theorem for nonlinear divisors.
PitMann Wong*, University of Notre Dame
H. F. Law, University of Hong Kong, Hong Kong
Philip P.W. Wong, University of Hong Kong
(103032397) 
3:30 p.m.
Sharp Estimates for the $\bar{\partial}$Neumann Problem on Regular coordinate domains.
JaeSeong Cho*, Purdue University
David Catlin, Purdue University
(103032205) 
4:00 p.m.
The envelope of holomorphy of certain 2 manifolds.
Berit Stensones*, University of Michigan
(103032430) 
4:30 p.m.
Attracting basins of volume preserving automorphisms of $\mathbb{C}^k$.
Han Peters, University of Wisconsin
Liz R Vivas*, University of Michigan
Erlend Wold, University of Oslo
(103032407) 
5:00 p.m.
Constructing supporting manifolds for nonpseudoconvex domains in $\mathbb{C}^n$.
Anna Siano*, University of Michigan
(103032224) 
5:30 p.m.
Boundary smoothness and irregularity of the $\overline{\partial}$Neumann problem.
S\"{o}nmez \c{S}ahuto\u{g}lu*, University of Michigan
(103032134)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.4:20 p.m.
Special Session on Applied Harmonic Analysis, IV
Room 8002, DePaul Center
Organizers:
Jonathan Cohen, DePaul University jcohen@math.depaul.edu
Ahmed I. Zayed, DePaul University azayed@math.depaul.edu

2:30 p.m.
Harmonic Polysplines.
W. R. Madych*, University of Connecticut
(103041240) 
3:00 p.m.
Discussion 
3:30 p.m.
Wavelets and threeway tiling sets in two dimensions.
Gestur Olafsson*, Louisiana State University
David Larson, Texas A&M
Peter Massopust, GSFNational Research Center for Environment and Health and Univ. Munich
(103043113) 
4:00 p.m.
Subspaces of $L^2(\mathbb{R})$ with the sampling property.
R. T. W. Martin*, University of Waterloo
(103047100)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:20 p.m.
Special Session on Singular Integrals and Related Problems, IV
Room 8011, DePaul Center
Organizers:
Laura De Carli, Florida International University decarlil@fiu.edu
A. M. Stokolos, DePaul University astokolo@condor.depaul.edu

2:30 p.m.
Some results and open problems related to multilinear operators associated with rough kernels or multipliers.
Geoff Diestel*, University of South Carolina
(103042373) 
3:00 p.m.
Paraproducts as bilinear CalderonZygmund operators.
Diego Maldonado*, Kansas State University
Arpad Benyi, Western Washington University
Andrea Nahmod, University of Massachusetts, Amherst
Rodolfo Torres, University of Kansas
(10304281) 
3:30 p.m.
Weighted norm inequalities for bilinear pseudodifferential operators with mild regularity.
Virginia Naibo*, Kansas State University
Diego Maldonado, Kansas State University
(10304288) 
4:00 p.m.
Boundary Value Problems for Higher Order Elliptic Operators in Two Dimensions.
Irina Mitrea*, University of Virginia
(103045343) 
4:30 p.m.
The Green function estimates and Wiener's test for the biharmonic equation.
Svitlana Mayboroda*, The Ohio State University
Vladimir Maz'ya, The Ohio State University
(103035327) 
5:00 p.m.
Mixed Boundary Value Problems for the Stokes System.
Matthew Wright*, University of Missouri
(103035334)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.4:50 p.m.
Special Session on Geometric Combinatorics, IV
Room 1005, Lewis Center
Organizers:
Caroline J. Klivans, University of Chicago cjk@math.uchicago.edu
Kathryn Nyman, Loyola University Chicago knyman@luc.edu

2:30 p.m.
Discussion 
3:00 p.m.
Higherorder nonEuclidean oriented matroid programs and triangulations.
Laura Anderson*, Binghamton University
(103005220) 
3:30 p.m.
Affine and toric hyperplane arrangements.
Margaret A. Readdy*, University of Kentucky
Richard Ehrenborg, University of Kentucky
Michael Slone, University of Kentucky
(10300593) 
4:00 p.m.
The Steinberg torus and affine descents.
T. Kyle Petersen*, University of Michigan
(103005105) 
4:30 p.m.
The discrete fundamental group of the associahedron.
Helene Barcelo*, Arizona State University
Christopher Severs, Arizona State University
(103005346)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.4:50 p.m.
Special Session on Differential Geometry and Its Applications, III
Room 8206, DePaul Center
Organizers:
Jianguo Cao, University of Notre Dame cao.7@nd.edu

2:30 p.m.
Fake projective planes and fake Hermitian symmetric spaces.
SaiKee Yeung*, Purdue University
(10305191) 
3:00 p.m.
Ergodic Frame Flow and Rank Rigidity.
David Constantine*, University of Michigan
(103053213) 
3:30 p.m.
Subdifferentials of functions on metric spaces with convex tangent spaces.
Libin Mou*, Bradley University
(103053419) 
4:00 p.m.
Theta lifts of eigenfunctions.
Harold Gerard Donnelly*, Purdue University
(10305849) 
4:30 p.m.
Recovering parallel Jacobi fields from ultraflats.
JeanFrancoise Lafont*, Ohio State University
(103053429)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:50 p.m.
Special Session on Numerical and Symbolic Techniques in Algebraic Geometry and Its Applications, IV
Room 1110, Lewis Center
Organizers:
GianMario Besana, DePaul University gbesana@cti.depaul.edu
Jan Verschelde, University of Illinois at Chicago jan@math.uic.edu
Zhonggang Zeng, Northeastern Illinois University zzeng@neiu.edu

2:30 p.m.
Equations of curves with automorphisms.
Tanush Shaska*, Oakland University
(10301447) 
3:00 p.m.
NHOM4PSpara  Parallel Implementation of the Polyhedral Homotopy Continuation Method for Polynomial Systems.
ChihHsiung Tsai*, Department of Mathematics/Michigan State University
(103065128) 
3:30 p.m.
The Newton Polytope Construction for Systems of Equations.
John McDonald*, DePaul University
(103052422) 
4:00 p.m.
Break 
4:30 p.m.
Applications of homotopies in the space of sections of a sheaf.
Chris S Peterson*, Colorado State University
(103014308) 
5:00 p.m.
A rankrevealing method for low rank matrices with updating, downdating, and applications.
Lee TsungLin*, Michigan State University
Li TienYien, Michigan State University
Zeng Zhonggang, Northeastern Illinois University
(103065124) 
5:30 p.m.
Multiple Zeros of Analytic Systems.
Barry H Dayton*, Northeastern Illinois University
(10301465)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:20 p.m.
Special Session on Algebraic Coding Theory (in honor of Harold N. Ward's retirement), IV
Room 1217, Lewis Center
Organizers:
Jay A. Wood, Western Michigan University jay.wood@wmich.edu

2:30 p.m.
Partial permutation decoding of Hermitian codes.
Gretchen L Matthews*, Clemson University
(103014185) 
3:00 p.m.
Groebner Bases \& List Decoding BCH Codes.
Philip R Busse*, University of Kentucky
(103014244) 
3:30 p.m.
Hadamard Matrices.
Stephen London, University of Illinois at Chicago, Chicago, IL
Vera Pless*, UIC, Chicago, IL
(103005123) 
4:00 p.m.
New results on selforthogonal codes.
Xiangdong Hou*, University of South Florida
(103094319) 
4:30 p.m.
A MacWilliams Identity for Convolutional Codes.
Heide GluesingLuerssen*, University of Kentucky
(10309468) 
5:00 p.m.
Cyclic convolutional codes and skew polynomial rings.
Sergio R LopezPermouth*, Ohio University
Steve Szabo, Ohio University
(103094337)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:50 p.m.
Special Session on Algebraic Combinatorics: Association Schemes and Related Topics, IV
Room 1216, Lewis Center
Organizers:
Sung Y. Song, Iowa State University sysong@iastate.edu
Paul Terwilliger, University of Wisconsin terwilli@math.wisc.edu

2:30 p.m.
Leonard triples.
Brian W Curtin*, University of South Florida
(103005314) 
3:00 p.m.
\qquad \qquad {\bf A family of tridiagonal pairs.}\\.
Melvin A. Vidar*, University of WisconsinMadison and University of the EastManila, Philippines
(103015329) 
3:30 p.m.
Characterization of Tridiagonal Pair via Split Decomposition.
Ali Godjali*, University of WisconsinMadison
(103015333) 
4:00 p.m.
The subconstituent algebra of a Latin square.
Ibtisam Daqqa*, University of South Florida
Brian Curtin, University of South Florida
(103005158) 
4:30 p.m.
Comparison of Character Formulas for the Lie superalgebra $gl(m,n)$.
Ian M Musson*, University of Wisconsin at Milwaukee
(103005426) 
5:00 p.m.
The Terwilliger algebra of the wreath power of H(1,q).
Gargi Bhattacharyya*, Iowa State University
SungYell Song, Iowa State University
(103005169) 
5:30 p.m.
The RobertsonAnstee cage with 40 vertices and related association scheme.
Mikhail H. Klin*, Department of Mathematics, BenGurion University of the Negev
Matan ZivAv, Department of Mathematics, BenGurion University of the Negev
(103005307)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.4:50 p.m.
Special Session on Graph Theory, IV
Room 1214, Lewis Center
Organizers:
Hemanshu Kaul, Illinois Institute of Technology kaul@iit.edu
Michael J. Pelsmajer, Illinois Institute of Technology pelsmajer@iit.edu

2:30 p.m.
Multiroute Cuts and Flows.
Chandra Chekuri*, University of Illinois, UrbanaChampaign
Sanjeev Khanna, University of Pennsylvania
(103068227) 
3:00 p.m.
The linear discrepancy of product of chains.
Jeong Ok Choi*, University of Illinois at UrbanaChampaign
Douglas B. West, University of Illinois at UrbanaChampaign
(103005394) 
3:30 p.m.
Partitions of finite vector spaces into subspaces.
Saad ElZanati, Illinois State University
George Seelinger, Illinois State University
Papa Sissokho*, Illinois State University
Larry Spence, Illinois State University
Charles Vanden Eynden, Illinois State University
(103005267) 
4:00 p.m.
Graphic GapFree Sequences.
Stephen G. Hartke*, University of NebraskaLincoln
(103005364) 
4:30 p.m.
Discussion

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:50 p.m.
Special Session on Free Resolutions, III
Room 1007, Lewis Center
Organizers:
Noam Horwitz, Cornell University nh54@cornell.edu
Irena Peeva, Cornell University ivp1@cornell.edu

2:30 p.m.
Optimal asymptotic results for powers containing symbolic powers.
Cristiano Bocci, University of Milan
Brian Harbourne*, University of NebraskaLincoln
(103013192) 
3:00 p.m.
The EliahouKervaire resolution is cellular.
Jeff A Mermin*, University of Kansas
(103013217) 
3:30 p.m.
Shellable graphs and sequentially CohenMacaulay bipartite graphs.
Adam Van Tuyl*, Dept. of Mathematical Sciences, Lakehead University
(103013102) 
4:00 p.m.
Minimal free resolutions over rational normal curves.
Noam Horwitz*, Cornell University
Vesselin Gasharov, Cornell University
Irena Peeva, Cornell University
(103013332) 
4:30 p.m.
Edge ideals and odd cycles in a graph.
Tai H. Ha*, Tulane University
Chris A. Francisco, Oklahoma State University
Adam Van Tuyl, Lakehead University
(10301389) 
5:00 p.m.
Complete intersection dimension and Auslander classes.
Sean SatherWagstaff*, North Dakota State University
Diana White, University of South Carolina
(103013111) 
5:30 p.m.
On liftable and weakly liftable modules.
Hailong Dao*, University of Utah
(10301390)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:55 p.m.
Special Session on Model Theory of Nonelementary Classes, IV
Room 1106, Lewis Center
Organizers:
John T. Baldwin, University of Illinois at Chicago jbaldwin@uic.edu
David W. Kueker, University of Maryland dwk@math.umd.edu
Rami Grossberg, Carnegie Mellon University rami@cmu.edu

2:30 p.m.
Fractured a.e.c. and the parallel to superstability.
Saharon Shelah*, Hebrew University of Jerusalem
(103003381) 
3:30 p.m.
Stability and tameness.
John Baldwin, University of Illinois at Chicago
Alexei Kolesnikov*, Towson University
(103003277) 
4:30 p.m.
Around simplicity in various nonelementary classes.
Andr\'es Villaveces*, Professor  Department of Mathematics  Universidad Nacional de Colombia
(103003310) 
5:00 p.m.
Definable groups in simple metric structures.
Bradd Hart*, McMaster University
(103003367) 
5:30 p.m.
Application topics for the $[0,1]$valued continuous version of firstorder logic.
C.\ Ward Henson*, University of Illinois at UrbanaChampaign
(103003103)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:55 p.m.
Special Session on Hopf Algebras and Related Areas, IV
Room 1210, Lewis Center
Organizers:
Yevgenia Kashina, DePaul University ykashina@condor.depaul.edu
Leonid Krop, DePaul University lkrop@condor.depaul.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
David E. Radford, University of Illinois at Chicago radford@uic.edu

2:30 p.m.
Computing the second cohomology of Hopf algebras.
Akira Masuoka*, Institute of Mathematics, University of Tsukuba
(10301695) 
3:00 p.m.
Representations of quantum $SL(2)$ at roots of unity.
William Chin*, DePaul University
(10301671) 
3:30 p.m.
Braid group representations from twisted quantum doubles of finite groups.
Pavel Etingof, Massachusetts Institute of Technology
Eric Rowell, Texas A&M University
Sarah Witherspoon*, Texas A&M University
(10301641) 
4:00 p.m.
Simple deformations of finite groups.
Sonia Natale*, Universidad Nacional de C\' ordoba. CIEMCONICET.
C\' esar N. Galindo, Universidad Nacional de C\' ordoba. CONICET.
(10301638) 
4:30 p.m.
FrobeniusSchur indicators and their generalizations.
Yorck Sommerh\"auser*, University of South Alabama
(103016261) 
5:00 p.m.
Representations of some Hopf algebras associated to the symmetric group.
Andrea Jedwab*, University of Southern California
Susan Montgomery, University of Southern California
(103016232) 
5:30 p.m.
Semisimple Hopf algebras with large abelian groups of grouplikes.
Yevgenia Kashina*, DePaul University
(103016283)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:50 p.m.
Special Session on Extremal and Probabilistic Combinatorics, IV
Room 1004, Lewis Center
Organizers:
Jozsef Balogh, University of Illinois at UrbanaChampaign jobal@math.uiuc.edu
Dhruv Mubayi, University of Illinois at Chicago mubayi@math.uic.edu

2:30 p.m.
Bandwidth of grid type of graphs.
Jozsef Balogh*, U. of Illinois
(10300585) 
3:00 p.m.
Properly colored cycles and rainbow cycles in edgecolored graphs.
Tao Jiang*, Miami University
(103005281) 
3:30 p.m.
On a Likely Number of Solutions for a Stable Marriage Problem.
Craig Lennon*, The Ohio State University
Boris Pittel, The Ohio State University
(10300527) 
4:00 p.m.
Break 
4:30 p.m.
On the edit distance in graphs.
Jozsef Balogh, University of Illinois at UrbanaChampaign
Ryan Martin*, Iowa State University
(103005126) 
5:00 p.m.
The HalesJewett Number and Hypercube Tictactoe.
Jozsef Beck, Rutgers University
Wesley Pegden, Rutgers University
Sujith Vijay*, University of Illinois at UrbanaChampaign
(103005198) 
5:30 p.m.
Discussion

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:50 p.m.
Special Session on The Euler and NavierStokes Equations, IV
Room 8005, DePaul Center
Organizers:
Alexey Cheskidov, University of Michigan acheskid@umich.edu
Susan J. Friedlander, University of Illinois at Chicago susan@math.uic.edu
Roman Shvydkoy, University of Illinois at Chicago shvydkoy@math.uic.edu

2:30 p.m.
Nonlocal maximum principle in fluid mechanics and applications to critical surface quasigeostrophic and Burgers equations.
Alexander Kiselev*, University of Wisconsin, Madison
Fedor Nazarov, University of Wisconsin, Madison
Alexander Volberg, Michigan State University
(103076289) 
3:00 p.m.
Regularity of solutions to the NavierStokes equations evolving from small initial data in a critical space.
Pierre Germain, New York University
Natasa Pavlovic*, The University of Texas at Austin
Gigliola Staffilani, Massachusetts Institute of Technology
(10303598) 
3:30 p.m.
Dynamic transition and stability in geophysical fluid dynamics.
ChunHsiung Hsia, University of Illinois at Chicago
Tian Ma, Sichuan University
Shouhong Wang*, Indiana University
(103076139) 
4:00 p.m.
Dicsussion 
4:30 p.m.
Regularity of the Primitive Equations of the Ocean.
Igor Kukavica*, University of Southern California
Mohammed Ziane, University of Southern California
(103035414) 
5:00 p.m.
Stationary Statistical Solutions of NavierStokes equations and the zero viscosity limit.
Peter Constantin*, The University of Chicago
Fabio Ramos, Weizmann Institute
(103035219) 
5:30 p.m.
On the energy balance relation for incompressible fluids.
Roman Shvydkoy*, University of Illinois at Chicago
(103076214)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:50 p.m.
Special Session on Smooth Dynamical Systems, IV
Room 8012, DePaul Center
Organizers:
Marian Gidea, Northeastern Illinois University mgidea@neiu.edu
Ilie D. Ugarcovici, DePaul University iugarcov@depaul.edu

2:30 p.m.
Mixing for hyperbolic flows.
Michael Field*, University of Houston
(10303766) 
3:00 p.m.
QuasiAnosov diffeomorphisms of 3manifolds.
Todd Fisher*, Brigham Young University
Jana Rodriguez Hertz, Facultad de Ingenieria  Universidad de la Republica
(103037118) 
3:30 p.m.
On nearest neighbors under isometries and nearest neighbor metrics.
Ben Schmidt*, U. of Chicago
(103051274) 
4:00 p.m.
Extreme value distributions for nonuniformly hyperbolic dynamical systems.
Mark Holland, University of Exeter, UK
Matthew Nicol, University of Houston
Andrew T\"or\"ok*, University of Houston
(103037399) 
4:30 p.m.
Whitney regularity for solutions to the coboundary equation on Cantor sets.
Mark Holland, University of Exeter
Matthew Nicol*, University of Houston
Andrew Torok, University of Houston
(103037147) 
5:00 p.m.
Smooth actions of mapping class groups on the circle.
Kamlesh Parwani*, Eastern Illinois University
(103037173) 
5:30 p.m.
Density of accessibility for partially hyperbolic diffeomorphisms with one dimensional center.
Keith Burns*, Northwestern University
Federico Rodriguez Hertz, Universidad de la Rep\'ublica, Uruguay
Jana Rodriguez Hertz, Universidad de la Rep\'ublica, Uruguay
Raul Ures, Universidad de la Rep\'ublica, Uruguay
Anna Talitskaya, Northwestern University
(103037306)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:50 p.m.
Special Session on Ergodic Theory and Symbolic Dynamical Systems, IV
Room 8014, DePaul Center
Organizers:
Ayse A. Sahin, DePaul University asahin@condor.depaul.edu
Ilie D. Ugarcovici, DePaul University iugarcov@depaul.edu

2:30 p.m.
Dynamics of the Nash map in the game of Matching Pennies.
Robert Becker, Indiana University
Subir Chakrabarti, Indiana UPurdue U Indianapolis
William Geller*, Indiana U Purdue U Indianapolis
Bruce Kitchens, Indiana U Purdue U Indianapolis
Michal Misiurewicz, Indiana U Purdue U Indianapolis
(103037406) 
3:00 p.m.
The modulated ergodic Hilbert transform.
Dogan Comez*, North Dakota State University
(103037122) 
3:30 p.m.
An AmbroseKakutani theorem for Borel semiflows.
David M McClendon*, Northwestern University
(103037131) 
4:00 p.m.
Floworbit equivalence for minimal Cantor systems.
Nicholas S. Ormes*, University of Denver
Daniel J Rudolph, Colorado State University
Wojciech Kosek, Colorado College
(103037330) 
4:30 p.m.
Any two irreducible Markov chains are finitarily orbit equivalent.
Mrinal K Roychowdhury*, University of North Texas
(103037263) 
5:00 p.m.
Almost continuous orbit equivalence.
Andres del Junco*, University of Toronto
(103028152) 
5:30 p.m.
Almost Continuous Kakutani Equivalence.
Daniel J. Rudolph*, Colorado State University
(103037382)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:15 p.m.
Special Session on Automorphic Forms: Representation Theory of padic and Adelic Groups, IV
Room 1207, Lewis Center
Organizers:
Mahdi Asgari, Oklahoma State University asgari@math.okstate.edu
Anantharam Raghuram, Oklahoma State University araghur@math.okstate.edu

2:30 p.m.
On nilpotent orbits of $\mathrm{SL}_n$ and $\mathrm{Sp}_{2n}$ over a $p$adic field.
Monica Nevins*, University of Ottawa, Canada
(103020211) 
3:00 p.m.
Motivic parameterization of good orbital integrals.
Clifton Cunningham*, University of Calgary
(103022207) 
3:30 p.m.
Characters are motivic near the identity.
Clifton Cunningham, University of Calgary
Julia Gordon*, University of British Columbia
Loren Spice, University of Michigan
(103022208) 
4:00 p.m.
Characters of tame $p$adic groups.
Loren Spice*, University of Michigan
(103022221) 
4:30 p.m.
Supercuspidal Representations of PAdic Groups.
Paul J Sally*, University of Chicago
(103022193)

2:30 p.m.

Saturday October 6, 2007, 2:30 p.m.5:20 p.m.
Special Session on Wave Propagation from Mathematical and Numerical Viewpoints, IV
Room 8009, DePaul Center
Organizers:
Gabriel Koch, University of Chicago koch@math.uchicago.edu
Catalin Constantin Turc, Caltech and University of North Carolina at Charlotte turc@acm.caltech.edu
Nicolae Tarfulea, Purdue University Calumet tarfulea@calumet.purdue.edu

2:30 p.m.
Systems of nonlinear wave equations with nonlinear degenerate damping and source terms.
Mohammad A. Rammaha*, Department of Mathematics, University of NebraskaLincoln.
Sawanya Sakuntasathien, Department of Mathematics, University of NebraskaLincoln.
(10303560) 
3:00 p.m.
Diffraction of waves on manifolds with corners.
Richard Melrose, MIT
Andras Vasy, Stanford University
Jared Wunsch*, Northwestern University
(103035225) 
3:30 p.m.
Adaptive discontinuous Galerkin methods for numerical relativity.
James Rossmanith*, University of Wisconsin  Madison
Qiang Deng, University of Wisconsin  Madison
(103065425) 
4:00 p.m.
Acoustic and electromagnetic integral equations requiring small numbers of Krylovsubspace iterations.
Catalin Turc*, Department of Mathematics UNC Charlotte
Oscar Bruno, Caltech
Tim Elling, Caltech
Randy Paffenroth, Caltech
(103065423) 
4:30 p.m.
Discussion 
5:00 p.m.
Discussion

2:30 p.m.