
AMS Sectional Meeting Full Program
Current as of Tuesday, April 12, 2005 15:21:44
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Deadlines 
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Inquiries: meet@ams.org
2004 Fall Central Section Meeting
Evanston, IL, October 2324, 2004
Meeting #1001
Associate secretaries: Susan J Friedlander, AMS susan@math.northwestern.edu
Saturday October 23, 2004

Saturday October 23, 2004, 7:00 a.m.4:00 p.m.
Exhibit and Book Sale
Room L 150, Technological Institute

Saturday October 23, 2004, 7:15 a.m.4:00 p.m.
Meeting Registration
Lobby, Technological Institute

Saturday October 23, 2004, 8:00 a.m.11:20 a.m.
Special Session on Solving Polynomial Systems, I
Room G 43, Donald P. Jacobs Center Organizers: Anton Leykin, University of Illinois at Chicago leykin@math.uic.edu
Jan Verschelde, University of Illinois at Chicago jan@math.uic.edu

8:00 a.m.
Homotopies to Compute Intersections of Solution Components of Polynomial Systems.
Andrew J Sommese*, University of Notre Dame
(10016591)

8:30 a.m.
Solving Polynomial Systems by Intersecting Subsystems Using Diagonal Homotopies.
Andrew J Sommese, University of Notre Dame
Jan Verschelde, University of Illinois at Chicago
Charles W Wampler*, General Motors R&D Center
(100165104)

9:00 a.m.
Advantages of Parsing Polynomials into Straightline Programs.
Daniel J Bates*, University of Notre Dame
(100168243)

9:30 a.m.
Break

10:00 a.m.
Is the attained solution isolated?
TienYien Li*, Department of Mathematics, Michigan State University, E.Lansing,MI
(100165201)

10:30 a.m.
Newton's Method with Deflation for Isolated Singularities of Polynomial Systems.
Anton Leykin, University of Illinois at Chicago
Jan Verschelde, University of Illinois at Chicago
Ailing Zhao*, University of Illinois at Chicago
(100165235)

11:00 a.m.
Determination of the dimension of a variety and some applications.
Wenyuan Wu*, Department of Applied Mathematics, University of Western Ontario
Greg Reid, Department of Applied Mathematics, University of Western Ontario
(10011494)

Saturday October 23, 2004, 8:30 a.m.10:50 a.m.
Special Session on Iterated Function Systems and Analysis on Fractals, I
Room L 160, Technological Institute Organizers: KaSing Lau, Chinese University of Hong Kong kslau@math.cuhk.edu.hk
Stephen S.T. Yau, University of Illinois at Chicago yau@uic.edu

8:30 a.m.
Orthogonal families of exponentials.
Steen Pedersen*, Wright State University
(100128361)

9:00 a.m.
Variable coefficient Iterated Function Systems associated with multiresolution analysis.
Palle E. T. Jorgensen*, University of Iowa
(10014605)

9:30 a.m.
Refinable functions with arbitrary dilations.
Yang Wang*, Georgia Institute of Technology
Dejun Feng, Tsinghua University
(10012807)

10:00 a.m.
The 3x+1 Semigroup.
David Applegate, At&T LabsResearch
Jeffrey C Lagarias*, University of Michigan
(100111352)

10:30 a.m.
On the Connectedness and Disklikeness of Selfaffine Tiles.
KaSing Lau*, Department of Mathematics, The Chinese University of Hong Kong
King Shun Leung, Department of Mathematics, Hong Kong Inst.of Education
(10012654)

Saturday October 23, 2004, 8:30 a.m.11:20 a.m.
Special Session on Nonlinear Waves, I
Room L R2, Technological Institute Organizers: Jerry L. Bona, University of Illinois at Chicago bona@math.uic.edu
Shuming Sun, Virginia Polytechnic Institute and State University sun@math.vt.edu
Bingyu Zhang, University of Cincinnati bzhang@math.uc.edu

8:30 a.m.
Collapse dynamics in YangMills, nonlinear Schroedinger and KellerSegel equations.
I M Sigal*, University of Notre Dame and University of Toronto
(100135368)

9:00 a.m.
Eventual Periodicity for dispersive wave equations in a quarter plane.
Jiahong Wu*, Oklahoma State University
(100135152)

9:30 a.m.
Comparison of Quarterplane and Twopoint Boundary Value Problems: The BBMequation.
Hongqiu Chen*, Univerity of Memphis and University of Illinois at Chicago
Jerry L Bona, University of Illinois at Chicago
Shuming Sun, Virginia Polytechnic Institute and State University
Bingyu Zhang, University of Cincinnati
(100135327)

10:00 a.m.
Beyond 3/4 for the Kortewegde Vries Equation.
Jerry L. Bona, University of Illinois at Chicago
Shuming Sun, Virginia Tech
BingYu Zhang*, University of Cincinnati
(100135158)

10:30 a.m.
The initialboundary value problem for the onedimensional nonlinear Schr\"odinger equation.
Justin Holmer*, University of California, Berkeley
(100135309)

11:00 a.m.
Spectra of Positive and Negative Energies in the Linearized NLS Problem.
Vitali G Vougalter*, University of Notre Dame Department of Mathematics
(100135408)

Saturday October 23, 2004, 8:30 a.m.10:45 a.m.
Special Session on Mathematical Problems in Robotics, I
Room A 110, Technological Institute Organizers: Robert W. Ghrist, University of Illinois at UrbanaChampaign ghrist@math.uiuc.edu

Saturday October 23, 2004, 8:30 a.m.10:50 a.m.
Special Session on Algebraic Representations and Deformations, I
Room LG 52, Technological Institute Organizers: Stephen R. Doty, Loyola University of Chicago doty@math.luc.edu
Anthony Giaquinto, Loyola University of Chicago tonyg@math.luc.edu

8:30 a.m.
Endotrivial modules for finite groups of Lie type (joint work with J. Carlson and D. Nakano).
Nadia Paola Mazza*, University of Georgia, Athens, GA
(10012089)

9:00 a.m.
Ideal Structure of Iterated Smash Tensor Power of the Restricted Enveloping Algebra of $sl_2$.
Stefan Catoiu*, DePaul University
(100116386)

9:30 a.m.
Algebras related to branching rules.
Jeb F. Willenbring*, University of Wisconsin  Milwaukee
(100122272)

10:00 a.m.
FCR factors of Enveloping algebras.
Ian M Musson*, Department of Mathematical Sciences, University of WisconsinMilwaukee
Jeb F. Willenbring, Department of Mathematical Sciences, University of Wisconsin
(100116389)

10:30 a.m.
Fixed Subrings of Noetherian Graded Regular Rings.
Ellen E. Kirkman*, Wake Forest University
James J. Kuzmanovich, Wake Forest University
(100116262)

Saturday October 23, 2004, 8:30 a.m.11:20 a.m.
Special Session on Mathematical Techniques in Musical Analysis, I
Auditorium, Technological Institute Organizers: Judith Baxter, University of Illinois at Chicago baxter@uic.edu
Richard Cohn, University of Chicago rcohn@uchicago.edu
Robert Peck, Louisiana State University rpeck@lsu.edu

Saturday October 23, 2004, 8:30 a.m.11:20 a.m.
Special Session on Hopf Algebras at the Crossroads of Algebra, Category Theory, and Topology, I
Room G 45, Donald P. Jacobs Center Organizers: Louis H. Kauffman, University of Illinois at Chicago kauffman@uic.edu
David E. Radford, University of Illinois at Chicago radford@uic.edu
Fernando J. O. Souza, University of Iowa fernandosouza@uiowa.edu

8:30 a.m.
Groups of grouplikes of a semisimple Hopf algebra and its dual.
Yevgenia Kashina*, DePaul University
(100116399)

9:00 a.m.
Application of the FadeevReshetikhinTaxhtajan construction to produce new finitedimensional quasitriangular Hopf algebras which are not equivalent via cocycle twisting.
Jacob Towber*, Mathematics Department, De Paul Univrsity, Chicago, Illinois
(100108342)

9:30 a.m.
Differential Algebra Structures on Families of Trees.
Robert L. Grossman, Uinv. of Illinois at Chicago
Richard G. Larson*, Univ. of Illinois at Chicago
(100116274)

10:00 a.m.
A note on antiYetterDrinfeld modules.
Mihai D Staic*, SUNY at Buffalo
(100116222)

10:30 a.m.
YetterDrinfeld modules, flatness, and Hopfcyclic cohomology.
Masoud Khalkhali*, Mathematics Department, University of Western Ontario, London ON, Canada
(100118237)

11:00 a.m.
Some results on coFrobenius Hopf algebras.
Margaret Beattie*, Mount Allison University
(100116348)

Saturday October 23, 2004, 8:30 a.m.11:20 a.m.
Special Session on Extremal Combinatorics, I
Room G 36, Donald P. Jacobs Center Organizers: Dhruv Mubayi, University of Illinois at Chicago mubayi@math.uic.edu
Yi Zhao, University of Illinois at Chicago zhao@math.uic.edu

8:30 a.m.
It's raining hyperedges: Online intersecting hypergraphs beyond the threshold.
Ryan Martin*, Iowa State University
Tom Bohman, Carnegie Mellon University
Alan Frieze, Carnegie Mellon University
Miklos Ruszinko, Computer and Automation Research Institute, Hungarian Academy of Sciences
Cliff Smyth, Carnegie Mellon University
(10010529)

9:00 a.m.
The Ramsey number for hypergraph cycles I.
P Haxell*, University of Waterloo
T. Luczak, Adam Mickiewicz University
Y. Peng, Indiana State University
V. Rodl, Emory University
A. Rucinski, Adam Mickiewicz University
M. Simonovits, Renyi Institute of Mathematics
J. Skokan, Universidade de Sao Paulo
(100105323)

9:30 a.m.
Ramsey number of hypergraph cycles II.
Jozef Skokan*, Universidade de Sao Paulo
(100105184)

10:00 a.m.
Codegree Density of hypergraphs.
Dhruv Mubayi, University of Illinois at Chicago
Yi Zhao*, University of Illinois at Chicago
(100105192)

10:30 a.m.
Extremal problems on packing of $d$degenerate graphs.
Bela Bollob\' as, University of Memphis
Alexandr Kostochka*, University of Illinois at UrbanaChampaign
Kittikorn Nakprasit, University of Illinois at UrbanaChampaign
(10010518)

11:00 a.m.
Maximum $K_{r+1}$free graphs which are not $r$partite.
Mihyun Kang, Humbodlt University, Berlin
Oleg Pikhurko*, Carnegie Mellon University
(100105137)

Saturday October 23, 2004, 8:30 a.m.11:20 a.m.
Special Session on Fluid Dynamics, Diffusion and Reaction, I
Room M 177, Technological Institute Organizers: Peter S. Constantin, University of Chicago const@cs.uchicago.edu
Leonid V. Ryzhik, University of Chicago ryzhik@math.uchicago.edu

Saturday October 23, 2004, 8:30 a.m.11:20 a.m.
Special Session on Computability Theory and Applications, I
Room G 03, Donald P. Jacobs Center Organizers: Robert I. Soare, University of Chicago soare@math.uchicago.edu
Denis R. Hirschfeldt, University of Chicago drh@math.uchicago.edu

8:30 a.m.
Degrees of nontrivial selfembeddings of computable linear orderings.
Rodney G. Downey, Victoria University of Wellington
Carl Jockusch*, University of Illinois at UrbanaChampaign
Joseph S. Miller, Victoria University of Wellington
(10010344)

9:00 a.m.
Computable structures of high rank.
W. Calvert, University of Notre Dame
S. S. Goncharov, Sobolev Institute/Novosibirsk State University
J. F. Knight*, University of Notre Dame
O. Kudinov, Sobolev Institute/Novosibirsk State University
A. S. Morozov, Sobolev Institute/Novosibirsk State University
V. Puzarenko, Sobolev Institute/Novosibirsk State University
(10010369)

9:30 a.m.
Index sets of dense Boolean algebras.
Barbara F. Csima*, Cornell University
Antonio Montalban, Cornell University
Richard A. Shore, Cornell University
(100103170)

10:00 a.m.
Ramsey Degrees.
Joseph R Mileti*, University of Chicago
(100103161)

10:30 a.m.
Undecidability in the Enumeration Degrees.
Thomas F. Kent*, University of Wisconsin, Madison
(100103199)

11:00 a.m.
Description and Comparison of Computable Structures.
Wesley Calvert*, University of Notre Dame
Valentina Harizanov, George Washington University
Julia F. Knight, University of Notre Dame
Sara Miller, University of Notre Dame
(10010382)

Saturday October 23, 2004, 9:00 a.m.10:50 a.m.
Special Session on Differential Geometry, I
Room MG 28, Technological Institute Organizers: Anders Ingemar Linner, Northern Illinois University linner@math.northwestern.edu
Hongyou Wu, Northern Illinois University wu@math.niu.edu

Saturday October 23, 2004, 9:00 a.m.10:45 a.m.
Special Session on Spectral Problems of Differential Operators, I
Room M 128, Technological Institute Organizers: Qingkai Kong, Northern Illinois University kong@math.niu.edu
Hongyou Wu, Northern Illinois University wu@math.niu.edu
Anton Zettl, Northern Illinois University zettl@math.niu.edu

Saturday October 23, 2004, 9:00 a.m.11:20 a.m.
Special Session on Modern Schubert Calculus, I
Room G 44, Donald P. Jacobs Center Organizers: Ezra Miller, University of Minnesota ezra@math.umn.edu
Frank Sottile, Texas A&M University sottile@math.tamu.edu

Saturday October 23, 2004, 9:00 a.m.11:20 a.m.
Special Session on Representation Theory of Reductive Groups, I
Room LG 66, Technological Institute Organizers: Jeffrey D. Adler, University of Akron adler@uakron.edu
JuLee Kim, University of Illinois at Chicago julee@math.uic.edu

Saturday October 23, 2004, 9:00 a.m.11:20 a.m.
Special Session on LowDimensional Topology and Kleinian Groups, I
Room LG 76, Technological Institute Organizers: Ian Agol, University of Illinois at Chicago agol@math.uic.edu
John Holt, University of Illinois at Chicago jholt@math.uic.edu
Saul Schleimer, University of Illinois at Chicago saul@math.uic.edu

Saturday October 23, 2004, 9:00 a.m.11:25 a.m.
Special Session on Special Functions, Orthogonal Polynomials, and their Applications, I
Room L 158, Technological Institute Organizers: George Gasper, Northwestern University george@math.northwestern.edu
Ahmed I. Zayed, DePaul University azayed@math.depaul.edu

Saturday October 23, 2004, 9:00 a.m.10:50 a.m.
Special Session on Codes and Applications, I
Room G 42, Donald P. Jacobs Center Organizers: William C. Huffman, Loyola University of Chicago wch@math.luc.edu
Vera S. Pless, University of Illinois at Chicago pless@math.uic.edu

Saturday October 23, 2004, 9:00 a.m.10:55 a.m.
Special Session on Nonlinear Partial Differential Equations and Applications, I
Room L R3, Technological Institute Organizers: GuiQiang Chen, Northwestern University gqchen@math.northwestern.edu
Mikhail Feldman, University of Wisconsin at Madison feldman@math.wisc.edu

Saturday October 23, 2004, 9:30 a.m.11:20 a.m.
Special Session on Stability Issues in Fluid Dynamics, I
Room L R4, Technological Institute Organizers: 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.
The effect of gravity modulation on the onset of filtrational convection.
Natalya Popova*, University of Illinois at Chicago
(100176326)

10:00 a.m.
Generic hydrodynamic instability via contact homology.
Robert Ghrist*, University of Illinois, UrbanaChampaign, Mathematics
John Etnyre, Univeristy of Pennsylvania, Mathematics
(100137395)

10:30 a.m.
Fractal patterns formed by growth of radial viscous fingers.
Harry L. Swinney*, University of Texas at Austin
O. Praud, University of Texas at Austin
E. Sharon, University of Texas at Austin
(100176293)

11:00 a.m.
Faraday wave pattern selection via multifrequency forcing.
Mary Silber*, Applied Mathematics Dept., Northwestern University
Jeff Porter, Dept. of Applied Mathematics, University of Leeds
Chad M. Topaz, Dept. of Mathematics, UCLA
(100176245)

Saturday October 23, 2004, 9:30 a.m.11:20 a.m.
Special Session on Applications of Motives, I
Room L 211, Technological Institute Organizers: Eric M. Friedlander, Northwestern University eric@math.northwestern.edu
Alexander Goncharov, Brown University sasha@math.brown.edu
Mikhail Kapranov, Yale University mikhail.kapranov@yale.edu
Yuri Manin, Max Planck Institute for Mathematics manin@mpimbonn.mpg.de

Saturday October 23, 2004, 9:30 a.m.11:15 a.m.
Special Session on Index Theory, Morse Theory, and the Witten Deformation Method, I
Room L 221, Technological Institute Organizers: Igor Prokhorenkov, Texas Christian University i.prokhorenkov@tcu.edu
Ken Richardson, Texas Christian University k.richardson@tcu.edu

Saturday October 23, 2004, 9:30 a.m.11:00 a.m.
Special Presentation, Part I
TA Development using case studies: A workshop for faculty
Room L 170, Technological Institute
Organizers:
Diane Herrmann, University of Chicago

Saturday October 23, 2004, 10:00 a.m.10:50 a.m.
Special Session on Algebraic Topology: Interactions with Representation Theory and Algebraic Geometry, I
Room LG 68, Technological Institute Organizers: Paul G. Goerss, Northwestern University pgoerss@math.northwestern.edu
Jesper Kragh Grodal, University of Chicago jg@math.uchicago.edu
Brooke E. Shipley, University of Illinois at Chicago bshipley@math.uic.edu

Saturday October 23, 2004, 10:00 a.m.10:50 a.m.
Special Session on Geometric Aspects of the Langlands Program, I
Room L 251, Technological Institute Organizers: Edward Frenkel, University of California Berkeley frenkel@math.berkeley.edu
Dennis Gaitsgory, University of Chicago gaitsgde@math.uchicago.edu
Mark Goresky, Institute for Advanced Study goresky@ias.edu
Kari Vilonen, Northwestern University vilonen@math.northwestern.edu

Saturday October 23, 2004, 11:40 a.m.12:30 p.m.
Invited Address
Fractional dimensions in geometry and algebra.
Auditorium, Technological Institute
Yuri Manin*, Northwestern University

Saturday October 23, 2004, 1:00 p.m.2:00 p.m.
Special Presentation, Part II
TA Development using case studies: A workshop for faculty
Room L 170, Technological Institute
Organizers:
Diane Herrmann, University of Chicago

Saturday October 23, 2004, 2:00 p.m.2:50 p.m.
Invited Address
The geometry and topology of reconfiguration.
Auditorium, Technological Institute
Robert Ghrist*, University of Illinois, UrbanaChampaign, Mathematics
(100168396)

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Differential Geometry, II
Room MG 28, Technological Institute Organizers: Anders Ingemar Linner, Northern Illinois University linner@math.northwestern.edu
Hongyou Wu, Northern Illinois University wu@math.niu.edu

3:00 p.m.
Positive harmonic function on open manifolds with nonpositive curvature.
Jianguo Cao*, University of Notre Dame,
Huijun Fan, Peking University
Francois Leddreppier, Univeristy of Notre Dame
(100158220)

3:30 p.m.
KSurfaces (smooth and discrete) of nonfinite type.
Ivan Charles Sterling*, St Mary's College of Maryland
(100153265)

4:00 p.m.
Soliton surfaces in the mechanical equilibrium of closed membranes.
Brian Smyth*, University of Notre Dame
(100153271)

4:30 p.m.
Spectral properties of the FourierMukai transform.
James F. Glazebrook*, Eastern Illinois University and University of Illinois at UrbanaChampaign
Marcos Jardim, IMECCUNICAMP, Campinas, Brazil
Franz W. Kamber, University of Illinois at UrbanaChampaign
(10015815)

5:00 p.m.
Dupin hypersurfaces with four principal curvatures.
Thomas E Cecil, College of the Holy Cross
QuoShin Chi, Washington University
Gary R Jensen*, Washington University
(100153238)

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Stability Issues in Fluid Dynamics, II
Room L R4, Technological Institute Organizers: Susan J. Friedlander, University of Illinois at Chicago susan@math.uic.edu
Roman Shvydkoy, University of Illinois at Chicago shvydkoy@math.uic.edu

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Iterated Function Systems and Analysis on Fractals, II
Room L 160, Technological Institute Organizers: KaSing Lau, Chinese University of Hong Kong kslau@math.cuhk.edu.hk
Stephen S.T. Yau, University of Illinois at Chicago yau@uic.edu

3:00 p.m.
Some good news about those gaps in the spectrum of the Laplacian on certain fractals.
Robert S. Strichartz*, Math Dept, Cornell Univ,
(10012842)

3:30 p.m.
Selfsimilar Dirichlet forms on p.c.f. fractals.
B. M. Hambly, University of Oxford
V. Metz, Bielefeld University
A. Teplyaev*, University of Connecticut
(100146410)

4:00 p.m.
Local structures and differentiation on fractals.
Martina C. Zähle*, Mathematical Institute, University of Jena, Germany
(10012878)

4:30 p.m.
Measurable Riemannian geometry on a selfsimilar set, energy measue and heat kernel estimate.
Jun Kigami*, Graduate School of Informatics, Kyoto University
(10013147)

5:00 p.m.
Quasisymmetric and quasiconformal equivalence of postcritically finite selfsimilar sets.
Jeremy T. Tyson*, University of Illinois
JangMei G. Wu, University of Illinois
(100130142)

5:30 p.m.
Entropy spectrum of Banach valued Birkhoff ergodic average.
Aihua Fan*, Picardie University
(100137150)

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Algebraic Topology: Interactions with Representation Theory and Algebraic Geometry, II
Room LG 68, Technological Institute Organizers: Paul G. Goerss, Northwestern University pgoerss@math.northwestern.edu
Jesper Kragh Grodal, University of Chicago jg@math.uchicago.edu
Brooke E. Shipley, University of Illinois at Chicago bshipley@math.uic.edu

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Nonlinear Waves, II
Room L R2, Technological Institute Organizers: Jerry L. Bona, University of Illinois at Chicago bona@math.uic.edu
Shuming Sun, Virginia Polytechnic Institute and State University sun@math.vt.edu
Bingyu Zhang, University of Cincinnati bzhang@math.uc.edu

3:00 p.m.
Special solutions of a Boussinesq system.
Min Chen*, Purdue University
(100176280)

3:30 p.m.
The Existence of Three Dimensional Localized Waves.
ShuMing Sun*, Virginia Tech
Mark Groves, Loughborough University, UK
(100176278)

4:00 p.m.
Control of the surface of water by a wavemaker.
Lionel Rosier*, Institut Elie Cartan de Nancy
(100176190)

4:30 p.m.
On the variational characterization of KdV multisolitons.
John P. Albert*, University of Oklahoma
Jerry L. Bona, University of Illinois at Chicago
Nghiem V. Nguyen, University of Oklahoma
(100135279)

5:00 p.m.
Decay of Solutions for Some Nonlinear Partial Differential Equations.
Jerry Bona, University of Illinois at Chicago, USA
Thanasis Fokas, University of Cambridge, UK
Laihan Luo*, Richard Stockton College of New Jersey, USA
(100135261)

5:30 p.m.
Generalized Poincar\'eHopf bifurcation and galloping instability of traveling waves.
Benjamin Texier*, Indiana University
Kevin Zumbrun, Indiana University
(100135308)

Saturday October 23, 2004, 3:00 p.m.5:45 p.m.
Special Session on Mathematical Problems in Robotics, II
Room A 110, Technological Institute Organizers: Robert W. Ghrist, University of Illinois at UrbanaChampaign ghrist@math.uiuc.edu

Saturday October 23, 2004, 3:00 p.m.6:20 p.m.
Special Session on Spectral Problems of Differential Operators, II
Room M 128, Technological Institute Organizers: Qingkai Kong, Northern Illinois University kong@math.niu.edu
Hongyou Wu, Northern Illinois University wu@math.niu.edu
Anton Zettl, Northern Illinois University zettl@math.niu.edu

Saturday October 23, 2004, 3:00 p.m.4:50 p.m.
Special Session on Geometric Aspects of the Langlands Program, II
Room L 251, Technological Institute Organizers: Edward Frenkel, University of California Berkeley frenkel@math.berkeley.edu
Dennis Gaitsgory, University of Chicago gaitsgde@math.uchicago.edu
Mark Goresky, Institute for Advanced Study goresky@ias.edu
Kari Vilonen, Northwestern University vilonen@math.northwestern.edu

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Applications of Motives, II
Room L 211, Technological Institute Organizers: Eric M. Friedlander, Northwestern University eric@math.northwestern.edu
Alexander Goncharov, Brown University sasha@math.brown.edu
Mikhail Kapranov, Yale University mikhail.kapranov@yale.edu
Yuri Manin, Max Planck Institute for Mathematics manin@mpimbonn.mpg.de

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Algebraic Representations and Deformations, II
Room LG 52, Technological Institute Organizers: Stephen R. Doty, Loyola University of Chicago doty@math.luc.edu
Anthony Giaquinto, Loyola University of Chicago tonyg@math.luc.edu

3:00 p.m.
Results on the peak algebra of the symmetric group algebra.
Kathryn Nyman*, Loyola University Chicago
Marcelo Aguiar, Texas A \& M University
Rosa Orellana, Dartmouth College
(100105434)

3:30 p.m.
Extensions, Levi subgroups, and Lusztig conjectures.
Leonard Scott*, The University of Virginia
(100120266)

4:00 p.m.
Representation type of Schur superalgebras.
David J Hemmer*, University of Toledo
Jonathan Kujawa, University of Georgia
Daniel Nakano, University of Georgia
(100120210)

4:30 p.m.
On the "q to q" phenomenon.
Bhama Srinivasan*, University of Illinois at Chicago
(100120382)

5:00 p.m.
Quantized hyperalgebras of rank one.
William Chin*, DePaul University
Leonid Krop, DePaul University
(100116263)

5:30 p.m.
Quantum and QuasiPl\"ucker Coordinates.
Aaron Lauve*, Rutgers UniversityNew Brunswick
(10011624)

Saturday October 23, 2004, 3:00 p.m.5:20 p.m.
Special Session on Modern Schubert Calculus, II
Room G 44, Donald P. Jacobs Center Organizers: Ezra Miller, University of Minnesota ezra@math.umn.edu
Frank Sottile, Texas A&M University sottile@math.tamu.edu

3:00 p.m.
Experimentation in real Schubert calculus for flag manifolds.
James Ruffo, TAMU
Yuval Sivan, University of Massachusetts, Amherst
Evgenia Soprunova*, University of Massachusetts, Amherst
Frank Sottile, TAMU
(100114273)

3:30 p.m.
Applying Pieri Homotopies to compute dynamic output feedback laws.
Yusong Wang*, University of Illinois at Chicago
Jan Verschelde, University of Illinois at Chicago
(100112194)

4:00 p.m.
Lower bounds in some problems of real Schubert calculus.
Alexandre Eremenko, Purdue University
Andrei Gabrielov*, Purdue University
(10011465)

4:30 p.m.
Tranversality of nongeneral Schubert cycles.
Brian Osserman*, University of California, Berkeley
(100114223)

5:00 p.m.
Quantum cohomology of isotropic Grassmannians.
Harry Tamvakis*, Brandeis University
(100114230)

Saturday October 23, 2004, 3:00 p.m.5:20 p.m.
Special Session on Representation Theory of Reductive Groups, II
Room LG 66, Technological Institute Organizers: Jeffrey D. Adler, University of Akron adler@uakron.edu
JuLee Kim, University of Illinois at Chicago julee@math.uic.edu

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on LowDimensional Topology and Kleinian Groups, II
Room LG 76, Technological Institute Organizers: Ian Agol, University of Illinois at Chicago agol@math.uic.edu
John Holt, University of Illinois at Chicago jholt@math.uic.edu
Saul Schleimer, University of Illinois at Chicago saul@math.uic.edu

Saturday October 23, 2004, 3:00 p.m.5:25 p.m.
Special Session on Special Functions, Orthogonal Polynomials, and their Applications, II
Room L 158, Technological Institute Organizers: George Gasper, Northwestern University george@math.northwestern.edu
Ahmed I. Zayed, DePaul University azayed@math.depaul.edu

3:00 p.m.
Ramanujan Continued Fractions and Orthogonal Polynomials.
Mourad E H Ismail*, University of Central Florida, Orlando, FL 33218
Dennis Stanton, School of Mathematics, University of Minnesota
(100133315)

3:30 p.m.
A conditionally convergent double series of ordinary Bessel functions in Ramanujan's lost notebook.
Bruce C. Berndt*, University of Illinois at UrbanaChampaign
(100133241)

4:00 p.m.
On Generalizations of Certain WellKnown $q$series Identities Associated to Root Systems.
Hasan Coskun*, Texas A&M UniversityCommerce
(100133163)

4:30 p.m.
Poisson Kernel for the associated continuos q Jacobi Polynomials.
Mizan Rahman, Carleton University
Tariq M Qazi*, Virginia State University
(100133151)

5:00 p.m.
Summation, transformation, and expansion formulas for elliptic, modular, and theta hypergeometric series.
George Gasper*, Northwestern University
(10013330)

Saturday October 23, 2004, 3:00 p.m.5:40 p.m.
Special Session on Mathematical Techniques in Musical Analysis, II
Auditorium, Technological Institute Organizers: Judith Baxter, University of Illinois at Chicago baxter@uic.edu
Richard Cohn, University of Chicago rcohn@uchicago.edu
Robert Peck, Louisiana State University rpeck@lsu.edu

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Hopf Algebras at the Crossroads of Algebra, Category Theory, and Topology, II
Room G 45, Donald P. Jacobs Center Organizers: Louis H. Kauffman, University of Illinois at Chicago kauffman@uic.edu
David E. Radford, University of Illinois at Chicago radford@uic.edu
Fernando J. O. Souza, University of Iowa fernandosouza@uiowa.edu

3:00 p.m.
Parametrization of simple modules for the Quantum double of FrobeniusLusztig kernels.
Leonid Krop*, Department of Mathematical Sciences, DePaul University
David E Radford, Department of Mathematics, Statistics and Computer Science, University of Illinois at Chicago
(100116148)

3:30 p.m.
A Left Quantum Group.
Suemi RodriguezRomo, Universidad Nacional Autonoma de Mexico
Earl J. Taft*, Rutgers University
(10011656)

4:00 p.m.
A New Lie Bialgebra Structure on $sl(2,1)$.
Gizem Karaali*, University of California, Santa Barbara
(100117285)

4:30 p.m.
Representations of the Hopf algbera U(n).
Mitsuhiro Takeuchi*, University of Tsukuba, Institute of Mathematics
(100116188)

5:00 p.m.
Hopfalgebraic approach to super affine groups and super formal groups.
Akira Masuoka*, University of Tsukuba, Institute of Mathematics
(100116187)

5:30 p.m.
Representations of quantum groups: constructions and characters from a Hopf algebraic point of view.
Marc Rosso*, Departement de Mathematiques et Applications, Ecole Normale Superieure, Paris, France
(100120353)

Saturday October 23, 2004, 3:00 p.m.5:20 p.m.
Special Session on Extremal Combinatorics, II
Room G 36, Donald P. Jacobs Center Organizers: Dhruv Mubayi, University of Illinois at Chicago mubayi@math.uic.edu
Yi Zhao, University of Illinois at Chicago zhao@math.uic.edu

Saturday October 23, 2004, 3:00 p.m.5:45 p.m.
Special Session on Index Theory, Morse Theory, and the Witten Deformation Method, II
Room L 221, Technological Institute Organizers: Igor Prokhorenkov, Texas Christian University i.prokhorenkov@tcu.edu
Ken Richardson, Texas Christian University k.richardson@tcu.edu

3:00 p.m.
Morse inequalities for orbit spaces.
Jes\'us A. \'Alvarez L\'opez*, Universidade de Santiago de Compostela
Manuel Calaza Cabanas, Universidade de Santiago de Compostela
(100158209)

4:00 p.m.
Laplace Transforms, Dynamics and Spectral Geometry.
Dan Burghelea*, OSU, Columbus, OH
Stefan Haller, Depatment of mathematics, University of Vienna
(100158189)

5:00 p.m.
The geometric complex of a MorseBottSmale pair and an extension of a theorem by BismutZhang.
Dan Burghelea, The Ohio State University
Stefan Haller*, University of Vienna
(100157111)

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Fluid Dynamics, Diffusion and Reaction, II
Room M 177, Technological Institute Organizers: Peter S. Constantin, University of Chicago const@cs.uchicago.edu
Leonid V. Ryzhik, University of Chicago ryzhik@math.uchicago.edu

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Codes and Applications, II
Room G 42, Donald P. Jacobs Center Organizers: William C. Huffman, Loyola University of Chicago wch@math.luc.edu
Vera S. Pless, University of Illinois at Chicago pless@math.uic.edu

Saturday October 23, 2004, 3:00 p.m.5:55 p.m.
Special Session on Nonlinear Partial Differential Equations and Applications, II
Room L R3, Technological Institute Organizers: GuiQiang Chen, Northwestern University gqchen@math.northwestern.edu
Mikhail Feldman, University of Wisconsin at Madison feldman@math.wisc.edu

3:00 p.m.
Bifurcation and Stability for GinzburgLandau Model of Superconductivity.
Tian Ma, Indiana University and Sichuan University
Shouhong Wang*, Indiana University
(100135407)

3:30 p.m.
Global Solvabilty for a Nonlinear Maxwell's Equation in Quasistationary Electromagnetic Fields.
HongMing Yin*, Washington State University
Wei Wei, Guizhou University
(100135211)

4:00 p.m.
Free boundary problems for quasilinear degenerate equations.
Eun Heui Kim*, California State University Long Beach
(100135372)

4:30 p.m.
On the pointwise jump condition of the free boundary in the 1phase Stefan problem.
Donatella Danielli*, Purdue University
Marianne Korten, Kansas State University
(100135385)

5:00 p.m.
Obstacle problem in Carnot groups of step 2.
Arshak Petrosyan*, Purdue University
(100135267)

5:30 p.m.
A Poincare inequality on $R^{n}$ and its application to potential fluid flows.
Guozhen Lu, Wayne State University
Biao Ou*, University of Toledo
(10013541)

Saturday October 23, 2004, 3:00 p.m.5:55 p.m.
Special Session on Geometric Partial Differential Equations, I
Room L R5, Technological Institute Organizers: GuiQiang Chen, Northwestern University gqchen@math.northwestern.edu
Jared Wunsch, Northwestern University jwunsch@math.northwestern.edu

3:00 p.m.
Geometric optics and the wave equation on manifolds with corners.
Andras Vasy*, Northwestern University/ MIT
(10015848)

3:30 p.m.
The normal trace of vector fields with weak divergences.
William P. Ziemer*, Indiana University
(100176120)

4:00 p.m.
Local pointwise and Harnack estimates for solutions of the $\sigma_k$ curvature equation.
ZhengChao Han*, Rutgers University, Piscataway, NJ
(100135200)

4:30 p.m.
Solutions of Tricomi Equations.
Qing Han*, Department of Mathmetics, University of Notre Dame
(10013585)

5:00 p.m.
Sharp local embedding inequalities.
Junfang Li, University of Oklahoma
Meijun Zhu*, University of Oklahoma
(10013583)

5:30 p.m.
Motion of Surfaces by Curvature.
Gieri Simonett*, Vanderbilt University
(100135225)

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Computability Theory and Applications, II
Room G 03, Donald P. Jacobs Center Organizers: Robert I. Soare, University of Chicago soare@math.uchicago.edu
Denis R. Hirschfeldt, University of Chicago drh@math.uchicago.edu

3:00 p.m.
On Downey's Conjecture.
Marat M. Arslanov, Kazan State University
Iskander Sh. Kalimullin, Kazan State University
Steffen Lempp*, University of WisconsinMadison
(100103132)

3:30 p.m.
The initial segment complexity of random reals.
Joseph S. Miller*, Indiana University Bloomington
Liang Yu, Victoria University of Wellington
(100103183)

4:00 p.m.
Degree Spectra of Homogeneous Models.
Karen M. Lange*, University of Chicago
(100103180)

4:30 p.m.
Computability Theory and Logic Programming.
Douglas Cenzer*, University of Florida
Jeffrey Remmel, University of California at San Diego
(100103138)

5:00 p.m.
Degrees of Saturated Models.
Kenneth A. Harris*, University of Chicago
Denis R. Hirschfeldt, University of Chicago
Robert I. Soare, University of Chicago
(100103205)

5:30 p.m.
Effectively and Relatively Effectively Categorical Structures.
Valentina Harizanov*, George Washington University
(100103162)

Saturday October 23, 2004, 3:00 p.m.5:50 p.m.
Special Session on Solving Polynomial Systems, II
Room G 43, Donald P. Jacobs Center Organizers: Anton Leykin, University of Illinois at Chicago leykin@math.uic.edu
Jan Verschelde, University of Illinois at Chicago jan@math.uic.edu

3:00 p.m.
Soprunova Room G 44

3:30 p.m.
Wang Room G 44

4:00 p.m.
Break

4:30 p.m.
An Algebraic Method for Analyzing Dynamic Systems.
Wenqin Zhou*, Applied Mathmatics Department, Unversity of Western Ontario, London, Ontario
Greg Reid, University of Western Ontario
David Jeffrey, University of Western Ontario
(10013495)

5:00 p.m.
On Polynomial Gcds over Direct Products of Fields Given by Towers of Simple Extensions.
Marc Moreno Maza*, University of Western Ontario
Boulier, University of Lille 1 (France)
Oancea, University of Western Ontario
(100112401)

5:30 p.m.
An Exact Toric ResultantBased RUR Approach for Solving Polynomial Systems.
Koji Ouchi*, Department of Computer Science, Texas A&M University
John Keyser, Department of Computer Science, Texas A&M University
(100168204)

Saturday October 23, 2004, 3:00 p.m.5:10 p.m.
Session for Contributed Papers
Room L 168, Technological Institute

3:00 p.m.
Classification of simply connected 4dim Einstein Lie groups.
Thomas Edward Poole*, La Trobe University Australia
(10015368)

3:15 p.m.
Intrinsically Linked Graphs with Knotted Components.
Thomas Fleming*, University of California, San Diego
(10015731)

3:30 p.m.
Explicit Evaluations of a Class of Double Lvalues.
David A. Terhune*, Pennsylvania State University
(10011120)

3:45 p.m.
Relative Randomness and Real Closed Fields.
Alexander Raichev*, University of WisconsinMadison
(10010306)

4:00 p.m.
Inductive logic of the genetic code.
Dennis F. Cudia*, none
(10019279)

4:15 p.m.
Open Formulas of RungeKutta Method.
Maitree Podisuk*, Faculty of Science KMITL Ladkrabang Bangkok 10520 Thailand
(100165149)

4:30 p.m.
Properties of the von NeumannKakutani adding machine transformation.
Dmitriy V Akimov*, North Dakota State University
(100137332)

4:45 p.m.
Constraint Preserving Boundary Conditions for a Hyperbolic Formulation of Einstein's Equations.
Nicolae Tarfulea*, University of Minnesota  Purdue University Calumet
(10013533)

5:00 p.m.
2D QuasiGeostrophic Equations.
Ning Ju*, Oklahoma State University
(10013537)

Saturday October 23, 2004, 6:00 p.m.7:00 p.m.
Reception Hosted by the Department of Mathematics
Louis Room, Norris Center, 1999 Campus Drive
Sunday October 24, 2004

Sunday October 24, 2004, 7:30 a.m.12:00 p.m.
Meeting Registration
Lobby, Technological Institute

Sunday October 24, 2004, 7:30 a.m.12:00 p.m.
Exhibit and Book Sale
Room L 150, Technological Institute

Sunday October 24, 2004, 8:00 a.m.10:50 a.m.
Special Session on Algebraic Topology: Interactions with Representation Theory and Algebraic Geometry, III
Room LG 68, Technological Institute Organizers: Paul G. Goerss, Northwestern University pgoerss@math.northwestern.edu
Jesper Kragh Grodal, University of Chicago jg@math.uchicago.edu
Brooke E. Shipley, University of Illinois at Chicago bshipley@math.uic.edu

Sunday October 24, 2004, 8:00 a.m.11:20 a.m.
Special Session on Solving Polynomial Systems, III
Room G 43, Donald P. Jacobs Center Organizers: Anton Leykin, University of Illinois at Chicago leykin@math.uic.edu
Jan Verschelde, University of Illinois at Chicago jan@math.uic.edu

8:00 a.m.
The maximum likelihood degree and the likelihood equations.
Fabrizio Catanese, Universitaet Bayreuth
Serkan Hosten*, San Francisco State University, Mathematics Department
Amit Khetan, University of Massachusetts, Amherst
Bernd Sturmfels, University of California, Berkeley
(100114164)

8:30 a.m.
Reconstructing dynamical systems from their zeta functions.
Christopher J Hillar*, U.C. Berkeley
(100112121)

9:00 a.m.
Resultants of Sparse Polynomials and Toric Vanishing Theorems.
Amit Khetan*, University of Massachusetts Amherst
(10011457)

9:30 a.m.
On Smale's 6th Problem: A solution in the fourbody case.
Marshall E Hampton*, University of Minnesota
Richard Moeckel, University of Minnesota
(100137119)

10:00 a.m.
Cellular Exclusion Algorithms for Polynomial Systems.
Eugene L. Allgower*, Colorado State University
Kurt Georg, deceased
(100165195)

10:30 a.m.
Solving the Polynomial Equations of the Geometric Design Problem of the Spatial 3R Mechanisms.
Eric C Lee*, Northeastern University
Constantinos Mavroidis, Northeastern University
(100114421)

11:00 a.m.
Using Polynomial Homotopy Method to Mechanism Synthesis.
HaiJun Su*, University of California, Irvine
(100108129)

Sunday October 24, 2004, 8:30 a.m.10:50 a.m.
Special Session on Iterated Function Systems and Analysis on Fractals, III
Room L 160, Technological Institute Organizers: KaSing Lau, Chinese University of Hong Kong kslau@math.cuhk.edu.hk
Stephen S.T. Yau, University of Illinois at Chicago yau@uic.edu

8:30 a.m.
Gaussian Random Fields and Salem Sets.
Yimin Xiao*, Michigan State University
(10016081)

9:00 a.m.
Break

9:30 a.m.
General finite type IFS and Mmatrix.
Stephen S.T. Yau*, Dept. of Math. Stat. & Computer Sci., University of Illinois at Chicago
Ning Jin, Dept. of Math., Nanjing University, China
(10013711)

10:00 a.m.
A generalized finite type condition for iterated function systems.
KaSing Lau, Department of Mathematics, The Chinese University of Hong Kong
SzeMan Ngai*, Department of Mathematical Sciences, Georgia Southern University
(100128112)

10:30 a.m.
Asymptotical Geometry of Cantor Systems.
Yunping Jiang*, CUNY/CAS
(10013777)

Sunday October 24, 2004, 8:30 a.m.11:20 a.m.
Special Session on Nonlinear Waves, III
Room L R2, Technological Institute Organizers: Jerry L. Bona, University of Illinois at Chicago bona@math.uic.edu
Shuming Sun, Virginia Polytechnic Institute and State University sun@math.vt.edu
Bingyu Zhang, University of Cincinnati bzhang@math.uc.edu

8:30 a.m.
On the persistence of KdV solitons in the unstable dynamics of inclined film flow.
Robert L Pego*, Carnegie Mellon University
Guido Schneider, Mathematisches Institut I, Universit\"at Karlsruhe
Hannes Uecker, Mathematisches Institut I, Universit\"at Karlsruhe
(100135357)

9:00 a.m.
Stability of solitarywave solutions for the Ostrovsky equation with weak rotation.
Yue Liu*, University of Texas at Arlington
(10013550)

9:30 a.m.
Longtime Soliton Dynamics of Variable Bottom KdVs.
Steven Ivan Dejak*, University of Toronto, Toronto, Canada
I. M. Sigal, University of Notre Dame and University of Toronto
(100135377)

10:00 a.m.
Existence and stability of periodic travellingwave solutions of the Benjamin equation.
Borys Alvarez*, University of Illinois at Chicago
Jaime Angulo, IMECC  UNICAMP, Brazil
(10013558)

10:30 a.m.
HigherOrder Stability of Solitary Waves.
Nghiem V. Nguyen*, University of Oklahoma/ Purdue University
John P. Albert, University of Oklahoma
Jerry L. Bona, University of Illinois at Chicago
Yue Liu, University of Texas at Arlington
(100135304)

11:00 a.m.
Asymptotic Stability of Nonlinear Schr\"odinger Equations with Potential.
Gang Zhou*, University of Notre Dame & University of Toronto
I M Sigal, University of Notre Dame & University of Toronto
(100135376)

Sunday October 24, 2004, 8:30 a.m.10:45 a.m.
Special Session on Mathematical Problems in Robotics, III
Room A 110, Technological Institute Organizers: Robert W. Ghrist, University of Illinois at UrbanaChampaign ghrist@math.uiuc.edu

Sunday October 24, 2004, 8:30 a.m.10:50 a.m.
Special Session on Algebraic Representations and Deformations, III
Room LG 52, Technological Institute Organizers: Stephen R. Doty, Loyola University of Chicago doty@math.luc.edu
Anthony Giaquinto, Loyola University of Chicago tonyg@math.luc.edu

8:30 a.m.
The Noncommutative Ward Correspondence.
K. C. Hannabuss, Balliol College, University of Oxford
S. J. Brain*, St Cross College, University of Oxford
(100151260)

9:00 a.m.
Applications of the path model.
Arun Ram*, Department of Mathematics, University of Wisconsin, Madison
(100117269)

9:30 a.m.
New examples of quantum ${\mathbb P}^3$ with finitely many points.
Darin R. Stephenson*, Hope College
Michaela Vancliff, University of Texas at Arlington
(100116229)

10:00 a.m.
An AlgebroGeometric Method for Constructing Clifford Quantum~${\mathbb{P}}^3$s with a Predetermined Finite Point Scheme.
Darin R Stephenson, Hope College, MI
Michaela Vancliff*, Univ. of Texas at Arlington
(100116250)

10:30 a.m.
Flat Monoids and Deformations of a Semisimple Group.
Lex E. Renner*, University of Western Ontario
(100120110)

Sunday October 24, 2004, 8:30 a.m.11:20 a.m.
Special Session on Mathematical Techniques in Musical Analysis, III
Auditorium, Technological Institute Organizers: Judith Baxter, University of Illinois at Chicago baxter@uic.edu
Richard Cohn, University of Chicago rcohn@uchicago.edu
Robert Peck, Louisiana State University rpeck@lsu.edu

Sunday October 24, 2004, 8:30 a.m.11:20 a.m.
Special Session on Hopf Algebras at the Crossroads of Algebra, Category Theory, and Topology, III
Room G 45, Donald P. Jacobs Center Organizers: Louis H. Kauffman, University of Illinois at Chicago kauffman@uic.edu
David E. Radford, University of Illinois at Chicago radford@uic.edu
Fernando J. O. Souza, University of Iowa fernandosouza@uiowa.edu

Sunday October 24, 2004, 8:30 a.m.11:20 a.m.
Special Session on Extremal Combinatorics, III
Room G 36, Donald P. Jacobs Center Organizers: Dhruv Mubayi, University of Illinois at Chicago mubayi@math.uic.edu
Yi Zhao, University of Illinois at Chicago zhao@math.uic.edu

8:30 a.m.
Optimal Graph Labellings: Edgebandwidth of graphs.
Jozsef Balogh*, The Ohio State University, Columbus, OH
Dhruv Mubayi, University of Illinois at Chicago
Andras Pluhar, University of Szeged, Szeged, Hungary
(100105303)

9:00 a.m.
Channel Assignments for Infinite Graphs.
Jerrold R. Griggs*, University of South Carolina
Xiaohua Teresa Jin, University of South Carolina
(100105247)

9:30 a.m.
On colored arithmetic progressions.
Maria Axenovich*, Iowa State University
(100105154)

10:00 a.m.
The Steiner Problem in the hypercube.
Tao Jiang*, Miami University, Oxford, Ohio
Dan Pritikin, Miami University, Oxford, Ohio
(100105136)

10:30 a.m.
Convex crossing numbers, circular arrangement problem, and isoperimetric functions.
Eva Czabarka, College of William & Mary
Ondrej Sykora, Loughborough University
Laszlo Szekely*, University of South Carolina
Imrich Vrto, Institute of Informatics, Slovak Academy of Sciences
(100105197)

11:00 a.m.
Families with forbidden inclusion pattern.
Gyula O.H. Katona*, University of South Carolina, Columbia, SC and R\'enyi Institute, Budapest,
(100105429)

Sunday October 24, 2004, 8:30 a.m.11:20 a.m.
Special Session on Fluid Dynamics, Diffusion and Reaction, III
Room M 177, Technological Institute Organizers: Peter S. Constantin, University of Chicago const@cs.uchicago.edu
Leonid V. Ryzhik, University of Chicago ryzhik@math.uchicago.edu

Sunday October 24, 2004, 8:30 a.m.10:55 a.m.
Special Session on Geometric Partial Differential Equations, II
Room L R5, Technological Institute Organizers: GuiQiang Chen, Northwestern University gqchen@math.northwestern.edu
Jared Wunsch, Northwestern University jwunsch@math.northwestern.edu

Sunday October 24, 2004, 8:30 a.m.11:20 a.m.
Special Session on Computability Theory and Applications, III
Room G 03, Donald P. Jacobs Center Organizers: Robert I. Soare, University of Chicago soare@math.uchicago.edu
Denis R. Hirschfeldt, University of Chicago drh@math.uchicago.edu

Sunday October 24, 2004, 9:00 a.m.10:50 a.m.
Special Session on Differential Geometry, III
Room MG 28, Technological Institute Organizers: Anders Ingemar Linner, Northern Illinois University linner@math.northwestern.edu
Hongyou Wu, Northern Illinois University wu@math.niu.edu

Sunday October 24, 2004, 9:00 a.m.10:50 a.m.
Special Session on Spectral Problems of Differential Operators, III
Room M 128, Technological Institute Organizers: Qingkai Kong, Northern Illinois University kong@math.niu.edu
Hongyou Wu, Northern Illinois University wu@math.niu.edu
Anton Zettl, Northern Illinois University zettl@math.niu.edu

Sunday October 24, 2004, 9:00 a.m.10:50 a.m.
Special Session on Geometric Aspects of the Langlands Program, III
Room L 251, Technological Institute Organizers: Edward Frenkel, University of California Berkeley frenkel@math.berkeley.edu
Dennis Gaitsgory, University of Chicago gaitsgde@math.uchicago.edu
Mark Goresky, Institute for Advanced Study goresky@ias.edu
Kari Vilonen, Northwestern University vilonen@math.northwestern.edu

Sunday October 24, 2004, 9:00 a.m.11:20 a.m.
Special Session on Modern Schubert Calculus, III
Room G 44, Donald P. Jacobs Center Organizers: Ezra Miller, University of Minnesota ezra@math.umn.edu
Frank Sottile, Texas A&M University sottile@math.tamu.edu

Sunday October 24, 2004, 9:00 a.m.11:20 a.m.
Special Session on Representation Theory of Reductive Groups, III
Room LG 66, Technological Institute Organizers: Jeffrey D. Adler, University of Akron adler@uakron.edu
JuLee Kim, University of Illinois at Chicago julee@math.uic.edu

Sunday October 24, 2004, 9:00 a.m.11:20 a.m.
Special Session on LowDimensional Topology and Kleinian Groups, III
Room LG 76, Technological Institute Organizers: Ian Agol, University of Illinois at Chicago agol@math.uic.edu
John Holt, University of Illinois at Chicago jholt@math.uic.edu
Saul Schleimer, University of Illinois at Chicago saul@math.uic.edu

Sunday October 24, 2004, 9:00 a.m.11:25 a.m.
Special Session on Special Functions, Orthogonal Polynomials, and their Applications, III
Room L 158, Technological Institute Organizers: George Gasper, Northwestern University george@math.northwestern.edu
Ahmed I. Zayed, DePaul University azayed@math.depaul.edu

9:00 a.m.
A Generalization of the Prolate Spheroidal Wave Functions.
Ahmed I Zayed*, DePaul University
(100133316)

9:30 a.m.
A new method of calculating values of prolate spheroidal wave functions.
Gilbert G. Walter*, UWMilwaukee
Tatiana Soleski, UWMilwaukee
(10014172)

10:00 a.m.
A new approach to the orthogonality of the Laguerre and Hermite polynomials.
Slobodan B. Trickovic*, University of Nis, Serbia
Miomir S. Stankovic, University of Nis, Serbia
(10013316)

10:30 a.m.
Asymptotic analysis of the Krawtchouk polynomials by the WKB method.
Diego Dominici*, SUNY New Paltz
(10014128)

11:00 a.m.
Analysis of the Paraxial Wave Equation: An Application of Special Functions.
Pete A McCoy*, U.S. Naval Academy
Reza MalekMadani, U.S. Naval Academy
(100133153)

Sunday October 24, 2004, 9:00 a.m.10:50 a.m.
Special Session on Codes and Applications, III
Room G 42, Donald P. Jacobs Center Organizers: William C. Huffman, Loyola University of Chicago wch@math.luc.edu
Vera S. Pless, University of Illinois at Chicago pless@math.uic.edu

Sunday October 24, 2004, 9:00 a.m.10:55 a.m.
Special Session on Nonlinear Partial Differential Equations and Applications, III
Room L R3, Technological Institute Organizers: GuiQiang Chen, Northwestern University gqchen@math.northwestern.edu
Mikhail Feldman, University of Wisconsin at Madison feldman@math.wisc.edu

Sunday October 24, 2004, 9:30 a.m.11:20 a.m.
Special Session on Stability Issues in Fluid Dynamics, III
Room L R4, Technological Institute Organizers: 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.
Dynamic Bifurcation in Geophysical Fluid Dynamics.
Tiian Ma, Indiana University and Sichuan University
Shouhong Wang*, Indiana University
(100176336)

10:00 a.m.
Strange eigenmodes of linear operators occuring in stability theory.
Raymond T Pierrehumbert*, The University of Chicago
(10013523)

10:30 a.m.
Stability of Lagrangian ideal flows.
Stephane Leblanc*, LSEET/CNRS, University of ToulonVar, France
David Guimbard, LSEET/CNRS, University of ToulonVar, France
(100176299)

11:00 a.m.
Ergodicity of the degenerately forced Stochastic NavierStokes Equations.
Jonathan C Mattingly*, Mathematics Department, Duke University
Etienne Pardoux, Universite de Provence
Martin Hairer, University of Warwick, UK
(100176423)

Sunday October 24, 2004, 9:30 a.m.11:20 a.m.
Special Session on Applications of Motives, III
Room L 211, Technological Institute Organizers: Eric M. Friedlander, Northwestern University eric@math.northwestern.edu
Alexander Goncharov, Brown University sasha@math.brown.edu
Mikhail Kapranov, Yale University mikhail.kapranov@yale.edu
Yuri Manin, Max Planck Institute for Mathematics manin@mpimbonn.mpg.de

Sunday October 24, 2004, 9:30 a.m.11:15 a.m.
Special Session on Index Theory, Morse Theory, and the Witten Deformation Method, III
Room L 221, Technological Institute Organizers: Igor Prokhorenkov, Texas Christian University i.prokhorenkov@tcu.edu
Ken Richardson, Texas Christian University k.richardson@tcu.edu

9:30 a.m.
Equivalence of spectral projections in semiclassical limit and a vanishing theorem for higher traces in $K$theory.
Yuri Kordyukov, Institute of Mathematics, Russian Academy of Sciences, Ufa, Russia
Varghese Mathai, University of Adelaide, Adelaide, Australia
Mikhail Shubin*, Northeastern University, Boston, USA
(10015870)

10:30 a.m.
Morse Inequalitites, A Path Space Approach.
Ionel Popescu*, Northwestern University / MIT
(100153427)

Sunday October 24, 2004, 11:40 a.m.12:30 p.m.
Invited Address
Khovanov homology and nilpotent slices.
Auditorium, Technological Institute
Paul Seidel*, Imperial CollegeLondon and University of Chicago
(10010004)

Sunday October 24, 2004, 2:00 p.m.2:50 p.m.
Invited Address
Two generator Kleinian groups.
Auditorium, Technological Institute
Ian Agol*, University of Illinois at Chicago
(100157331)

Sunday October 24, 2004, 3:00 p.m.4:20 p.m.
Special Session on Stability Issues in Fluid Dynamics, IV
Room L R4, Technological Institute Organizers: Susan J. Friedlander, University of Illinois at Chicago susan@math.uic.edu
Roman Shvydkoy, University of Illinois at Chicago shvydkoy@math.uic.edu

Sunday October 24, 2004, 3:00 p.m.5:20 p.m.
Special Session on Iterated Function Systems and Analysis on Fractals, IV
Room L 160, Technological Institute Organizers: KaSing Lau, Chinese University of Hong Kong kslau@math.cuhk.edu.hk
Stephen S.T. Yau, University of Illinois at Chicago yau@uic.edu

3:00 p.m.
A NonAdditive Thermodynamic Formalism.
Yakov Pesin, Penn State University
Anna Mummert*, Penn State University
(10013719)

3:30 p.m.
Diophantine Approximation for Conformal Measures of OneDimensional Iterated Function Systems.
Mariusz Urbanski*, University of North Texas
(10013714)

4:00 p.m.
Complex Dimensions of SelfSimilar Fractals: OneDimensional Theory and the Example of the Koch Snowflake Curve in Two Dimensions.
Michel L. Lapidus*, University of California, Riverside
Erin P. J. Pearse, University of California, Riverside
(10012861)

4:30 p.m.
A tube formula for the Koch snowflake curve, with applications to complex dimensions.
Michel L. Lapidus, University of California, Riverside
Erin P.J. Pearse*, University of California, Riverside
(10013722)

5:00 p.m.
Housdorff Dimension of General Sierpinski Carpets in $R^m$.
Ning Jin*, University of Illinois at Chicago, Chicago, IL 60607
(100137419)

Sunday October 24, 2004, 3:00 p.m.5:50 p.m.
Special Session on Algebraic Topology: Interactions with Representation Theory and Algebraic Geometry, IV
Room LG 68, Technological Institute Organizers: Paul G. Goerss, Northwestern University pgoerss@math.northwestern.edu
Jesper Kragh Grodal, University of Chicago jg@math.uchicago.edu
Brooke E. Shipley, University of Illinois at Chicago bshipley@math.uic.edu

Sunday October 24, 2004, 3:00 p.m.3:50 p.m.
Special Session on Nonlinear Waves, IV
Room L R2, Technological Institute Organizers: Jerry L. Bona, University of Illinois at Chicago bona@math.uic.edu
Shuming Sun, Virginia Polytechnic Institute and State University sun@math.vt.edu
Bingyu Zhang, University of Cincinnati bzhang@math.uc.edu

Sunday October 24, 2004, 3:00 p.m.5:15 p.m.
Special Session on Mathematical Problems in Robotics, IV
Room A 110, Technological Institute Organizers: Robert W. Ghrist, University of Illinois at UrbanaChampaign ghrist@math.uiuc.edu

Sunday October 24, 2004, 3:00 p.m.6:20 p.m.
Special Session on Spectral Problems of Differential Operators, IV
Room M 128, Technological Institute Organizers: Qingkai Kong, Northern Illinois University kong@math.niu.edu
Hongyou Wu, Northern Illinois University wu@math.niu.edu
Anton Zettl, Northern Illinois University zettl@math.niu.edu

3:00 p.m.
A Borg type theorem for matrixvalued supersymmetric Dirac difference operators.
S Clark*, University of MissouriRolla
F Gesztesy, University of MissouriColumbia
(100134339)

3:30 p.m.
On Periodic MatrixValued WeylTitchmarsh Functions.
Miron Bekker*, University of MissouriRolla
Eduard Tsekanovskii, Niagara University
(100147157)

4:00 p.m.
The spectral function associated with SturmLiouville equations with potential of Wignervon Neumann type.
D. J. Gilbert, Dublin Institute of Technology
B. J. Harris, Northern Illinois University
S. M. Riehl*, University of Northern Iowa
(100134108)

4:30 p.m.
Rightdefinite halflinear SturmLiouville Problems.
Lingju Kong*, Northern Illinois University, Dekalb, IL 60115
Qingkai Kong, Northern Illinois University
(10013445)

5:00 p.m.
Break

5:30 p.m.
Geometric Aspects of SturmLiouville Problems, V. Natural Loops of Boundary Conditions for Monotonicity of Eigenvalues and Their Applications.
WuJian Peng, Northern Illinois University
Mihai T. Racovitan*, Northern Illinois University
HongYou Wu, Northern Illinois University
(10013408)

6:00 p.m.
Discontinuous BoundaryValue Problems: Expansion and Sampling Theorems.
Ahmed Zayed*, DePaul University
M. Annaby, Cairo University
G. Freiling, University of Duisburg
(100134430)

Sunday October 24, 2004, 3:00 p.m.4:50 p.m.
Special Session on Geometric Aspects of the Langlands Program, IV
Room L 251, Technological Institute Organizers: Edward Frenkel, University of California Berkeley frenkel@math.berkeley.edu
Dennis Gaitsgory, University of Chicago gaitsgde@math.uchicago.edu
Mark Goresky, Institute for Advanced Study goresky@ias.edu
Kari Vilonen, Northwestern University vilonen@math.northwestern.edu

Sunday October 24, 2004, 3:00 p.m.5:50 p.m.
Special Session on Algebraic Representations and Deformations, IV
Room LG 52, Technological Institute Organizers: Stephen R. Doty, Loyola University of Chicago doty@math.luc.edu
Anthony Giaquinto, Loyola University of Chicago tonyg@math.luc.edu

3:00 p.m.
A qPartition Algebra.
Tom Halverson*, Macalester College
Arun Ram, Univeristy of Wisconsin  Madison
(10012086)

3:30 p.m.
Hochschild cohomology of nalgebras and string topology.
Alexander A Voronov*, University of Minnesota
(100116145)

4:00 p.m.
Deformations and Extensions of Infinity Algebras.
Michael R. Penkava*, University of WisconsinEau Claire
(100117257)

4:30 p.m.
Kronecker quiver and bases of quantum affine $sl_2$.
Kevin McGerty*, University of Chicago
(100116356)

5:00 p.m.
Quantum group actions, Rmatrices and deformations of algebras.
Georgia Benkart, University of Wisconsin
Sarah Witherspoon*, Texas A&M University
(100116169)

5:30 p.m.
The affine BirmanWenzlMurakami algebras and tangles in the solid torus.
Frederick M. Goodman*, University of Iowa
Holly Hauschild, University of Iowa
(100116387)

Sunday October 24, 2004, 3:00 p.m.5:20 p.m.
Special Session on Modern Schubert Calculus, IV
Room G 44, Donald P. Jacobs Center Organizers: Ezra Miller, University of Minnesota ezra@math.umn.edu
Frank Sottile, Texas A&M University sottile@math.tamu.edu

3:00 p.m.
Eigenvalue problems and a new product in the cohomology of flag varieties.
Prakash Belkale*, Department of Mathematics UNC, Chapel Hill, North Carolina, USA.
Shrawan Kumar, Department of Mathematics, UNC Chapel Hill.
(100114295)

3:30 p.m.
A Horntype Recursion for Minuscule Schubert Calculus.
Kevin Purbhoo*, Fields Institute
Frank Sottile, Texas A&M University
(100114147)

4:00 p.m.
Equivariant Quantum Schubert Calculus.
Leonardo Constantin Mihalcea*, University of Michigan
(100114109)

4:30 p.m.
A New Combinatorial Model for the Equivariant $K$theory of $G/P$.
Cristian P. Lenart*, State University of New York at Albany
(10012253)

5:00 p.m.
Degrees of Schubert varieties.
Alexander Postnikov*, MIT
(100105383)

Sunday October 24, 2004, 3:00 p.m.4:50 p.m.
Special Session on Representation Theory of Reductive Groups, IV
Room LG 66, Technological Institute Organizers: Jeffrey D. Adler, University of Akron adler@uakron.edu
JuLee Kim, University of Illinois at Chicago julee@math.uic.edu

Sunday October 24, 2004, 3:00 p.m.5:50 p.m.
Special Session on LowDimensional Topology and Kleinian Groups, IV
Room LG 76, Technological Institute Organizers: Ian Agol, University of Illinois at Chicago agol@math.uic.edu
John Holt, University of Illinois at Chicago jholt@math.uic.edu
Saul Schleimer, University of Illinois at Chicago saul@math.uic.edu

3:00 p.m.
Heegaard surfaces and measured laminations.
Tao Li*, Oklahoma State University
(100157292)

3:30 p.m.
A combination theorem for Veech subgroups of the mapping class group.
Christopher J. Leininger*, Columbia University
Alan W. Reid, University of Texas at Austin
(100151198)

4:00 p.m.
Representationvolume rigidity for hyperbolic manifolds.
Ben Klaff*, University of Texas at Austin
(100157329)

4:30 p.m.
Geometric tameness in wordhyperbolic closed threemanifold groups.
Joshua B Barnard*, University of Oklahoma
(100157388)

5:00 p.m.
Teichmuller geodesics and Lines of Minima.
Kasra Rafi*, University of California Santa Barbara
Caroline Series, University of Warwick
YoungEun Choi,
(100100431)

5:30 p.m.
The Heegaard genus of a union of small manifolds.
Eric Sedgwick*, DePaul University
David Bachman, Pitzer College
Saul Schleimer, Rutgers University
(100157369)

Sunday October 24, 2004, 3:00 p.m.4:25 p.m.
Special Session on Special Functions, Orthogonal Polynomials, and their Applications, IV
Room L 158, Technological Institute Organizers: George Gasper, Northwestern University george@math.northwestern.edu
Ahmed I. Zayed, DePaul University azayed@math.depaul.edu

Sunday October 24, 2004, 3:00 p.m.5:40 p.m.
Special Session on Mathematical Techniques in Musical Analysis, IV
Auditorium, Technological Institute Organizers: Judith Baxter, University of Illinois at Chicago baxter@uic.edu
Richard Cohn, University of Chicago rcohn@uchicago.edu
Robert Peck, Louisiana State University rpeck@lsu.edu

Sunday October 24, 2004, 3:00 p.m.5:20 p.m.
Special Session on Hopf Algebras at the Crossroads of Algebra, Category Theory, and Topology, IV
Room G 45, Donald P. Jacobs Center Organizers: Louis H. Kauffman, University of Illinois at Chicago kauffman@uic.edu
David E. Radford, University of Illinois at Chicago radford@uic.edu
Fernando J. O. Souza, University of Iowa fernandosouza@uiowa.edu

Sunday October 24, 2004, 3:00 p.m.3:50 p.m.
Special Session on Extremal Combinatorics, IV
Room G 36, Donald P. Jacobs Center Organizers: Dhruv Mubayi, University of Illinois at Chicago mubayi@math.uic.edu
Yi Zhao, University of Illinois at Chicago zhao@math.uic.edu

Sunday October 24, 2004, 3:00 p.m.5:50 p.m.
Special Session on Fluid Dynamics, Diffusion and Reaction, IV
Room M 177, Technological Institute Organizers: Peter S. Constantin, University of Chicago const@cs.uchicago.edu
Leonid V. Ryzhik, University of Chicago ryzhik@math.uchicago.edu

Sunday October 24, 2004, 3:00 p.m.5:50 p.m.
Special Session on Codes and Applications, IV
Room G 42, Donald P. Jacobs Center Organizers: William C. Huffman, Loyola University of Chicago wch@math.luc.edu
Vera S. Pless, University of Illinois at Chicago pless@math.uic.edu

3:00 p.m.
On Some Graph Theoretic Properties of LDPC Codes.
Hossein PishroNik*, Georgia Institute of Technology
Faramarz Fekri, Georgia Institute of Technology
(100105252)

3:30 p.m.
Codes on graphs and hypergraphs.
Alexander Barg*, University of Maryland
(100194426)

4:00 p.m.
Pseudocodewords, cycle codes, and the edge zeta function of graphs.
Ralf Koetter*, University of Illinois at UrbanaChampaign
WenChing W Li, Pennsylvania State University
Pascal O. Vontobel, University of Wisconsin
Judy L. Walker, University of Nebraska
(100194414)

4:30 p.m.
LDPC codes obtained from quadratic surfaces of finite projective spaces.
Keith E Mellinger*, University of Mary Washington
Amanda Passmore, University of Mary Washington
Jennifer Stovall, University of Mary Washington
(10019439)

5:00 p.m.
Problems in Combinatorial and Number Theory Related to LDPC Code Construction.
Olgica Milenkovic*, ECE Department, University of Colorado, Boulder
(100194264)

5:30 p.m.
Results on FiniteField Wavelets and Their Applications to Error Correcting Codes.
Faramarz Fekri*, School of ECE, Georgia Institute of Technology
Farshid Delgosha, School of ECE, Georgia Institute of Technology
Mina Sartipi, School of ECE, Georgia Institute of Technology
(100194360)

Sunday October 24, 2004, 3:00 p.m.4:55 p.m.
Special Session on Nonlinear Partial Differential Equations and Applications, IV
Room L R3, Technological Institute Organizers: GuiQiang Chen, Northwestern University gqchen@math.northwestern.edu
Mikhail Feldman, University of Wisconsin at Madison feldman@math.wisc.edu

3:00 p.m.
The phase transition between chiral nematic and smectic liquid crystals.
Daniel Phillips*, Purdue University, Department of Mathematics
Sookyung Joo, Institute for Mathematics and its Applications (IMA) , University of Minnesota
(100135167)

3:30 p.m.
Stability of undercompressive shock profiles.
Peter Howard, Texas A. and M.
Kevin Zumbrun*, Indiana University, Bloomington
(100135126)

4:00 p.m.
Structural properties of viscoelasticity and convergence to polyconvex elastodynamics.
Corrado Lattanzio, Universita de L'Aquila
Athanasios E. Tzavaras*, University of Wisconsin
(100135224)

4:30 p.m.
Critical Thresholds in Hyperbolic Balance Laws.
Hailiang Liu*, Iowa State University
(100135277)

Sunday October 24, 2004, 3:00 p.m.5:25 p.m.
Special Session on Geometric Partial Differential Equations, III
Room L R5, Technological Institute Organizers: GuiQiang Chen, Northwestern University gqchen@math.northwestern.edu
Jared Wunsch, Northwestern University jwunsch@math.northwestern.edu

Sunday October 24, 2004, 3:00 p.m.5:50 p.m.
Special Session on Computability Theory and Applications, IV
Room G 03, Donald P. Jacobs Center Organizers: Robert I. Soare, University of Chicago soare@math.uchicago.edu
Denis R. Hirschfeldt, University of Chicago drh@math.uchicago.edu

3:00 p.m.
The low$_{n}$ and low$_{m}$ r.e.\ degrees are not elementarily equivalent.
Richard A. Shore*, Cornell University
(10010366)

3:30 p.m.
Minimal wtt degrees and computably enumerable Turing degrees.
Reed Solomon*, University of Connecticut
Rodney Downey, Victoria University at Wellington
(100103122)

4:00 p.m.
Improving and Proving the SlamanWoodin Conjecture.
Peter Cholak*, University of Notre Dame
Rod Downey, Victoria University (of Wellington, New Zealand)
Leo Harrington, UCBerkeley
(100103118)

4:30 p.m.
Spectra of relations on the random graph.
Valentina Harizanov, George Washington University
Russell Miller*, Queens College  C.U.N.Y.
(100103218)

5:00 p.m.
Embedding and Coding Below a 1Generic Degree.
Noam Greenberg*, University of Notre Dame
Antonio Montalban, Cornell University
(10010367)

5:30 p.m.
Computably Enumerable Algebras, Their Expansions, and Isomorphisms.
Bakhadyr Khoussainov*, The University of Auckland, New Zealand
Steffen Lempp, The University of WisconsinMadison
Theodore A Slaman, Berkeley
(100103283)

Sunday October 24, 2004, 3:00 p.m.5:50 p.m.
Special Session on Solving Polynomial Systems, IV
Room G 43, Donald P. Jacobs Center Organizers: Anton Leykin, University of Illinois at Chicago leykin@math.uic.edu
Jan Verschelde, University of Illinois at Chicago jan@math.uic.edu
Inquiries: meet@ams.org

