AMS Sectional Meeting Program by Day
Current as of Tuesday, April 12, 2005 15:21:45
2004 Fall Central Section Meeting
Evanston, IL, October 2324, 2004
Meeting #1001
Associate secretaries: Susan J Friedlander, AMS susan@math.northwestern.edu
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

8:00 a.m.
Some connected covers of the specturm tmf(3).
Mark Mahowald*, Northwestern University
Charles Rezk, University of Illinois
(100155325) 
8:30 a.m.
Algebraic $K$theory and sumsofsquares formulas.
Daniel C Isaksen*, Wayne State University
Daniel Dugger, University of Oregon
(100155171) 
9:00 a.m.
Break. 
9:30 a.m.
Free $p$group actions on products of spheres.
\"{O}zg\"{u}n \"{U}nl\"{u}*, McMaster University
(100157310) 
10:00 a.m.
DyerLashof operations in the string topology of spheres and projective spaces.
Craig Westerland*, Institute for Advanced Study
(10015564) 
10:30 a.m.
Representation and character theory in 2categories.
Nora Ganter*, UIUC
Mikhail Kapranov, Yale
(100155322)

8:00 a.m.

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)

8:00 a.m.

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)

8:30 a.m.

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)

8:30 a.m.

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

8:30 a.m.
Braid groups of graphs: some new results.
Aaron D. Abrams*, MSRI and Emory University
(100157402) 
9:00 a.m.
Protein Similarity from Isotopic Line Weavings.
Michael A. Erdmann*, Carnegie Mellon University
(100192213) 
9:30 a.m.
Optimal Robot Navigation Without Measuring Distances.
Steven M. LaValle*, University of Illinois at UrbanaChampaign
Benjamin Tovar, University of Illinois at UrbanaChampaign
Luis Guilamo, University of Illinois at UrbanaChampaign
Rafael Murrieta, University of Illinois at UrbanaChampaign
(100168364) 
10:00 a.m.
Algorithms for Neural Prosthetics.
Joel W Burdick*, California Institute of Technology
(100192370)

8:30 a.m.

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)

8:30 a.m.

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

8:30 a.m.
Discussion 
9:30 a.m.
From Rhythmic Canons to Fuglede's conjecture.
Emmanuel Amiot*, Perpignan, France
(100112114) 
10:30 a.m.
Measuring Musical Dissimilarity: First and Second Order Center of Effect (CE) Differences Inside the Spiral Array.
Elaine Chew*, University of Southern California Viterbi School of Engineering, Epstein Dep of Industrial and Systems Engineering
(100115416)

8:30 a.m.

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

8:30 a.m.
Central Braided Hopf Algebras.
Peter C Schauenburg*, Mathematisches Institut der Universit\"at M\"unchen
(100116186) 
9:00 a.m.
Central Invariants and Higer Indicators for Semisimple QuasiHopf Algebras.
SiuHung Ng*, Iowa State University
Peter Schauenburg, Mathematisches Institut Der Universit\"{a}t M\"{u}nchen
(100116380) 
9:30 a.m.
Canonical central elements in quasitriangular Hopf algebras.
Thomas Kerler*, The Ohio State University
(100116287) 
10:00 a.m.
On integrals and trace functions for Hopfalgebra objects in symmetric, traced categories.
Fernando J. O. Souza*, University of Iowa
(100116420) 
10:30 a.m.
About categories of matched pairs and Singer pairs of Hopf algebras.
Mitja Mastnak*, Dalhousie University
(100116347) 
11:00 a.m.
A uniqueness property for quantizations of Teichm\"uller spaces.
Hua Bai*, University of Southern California
(100117202)

8:30 a.m.

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)

8:30 a.m.

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

8:30 a.m.
A variational principle based study of KPP front speeds in random shear flows.
Jack Xin*, University of Texas
(100135173) 
9:30 a.m.
Estimates in singularly perturbed models for diffusion flames.
JeanMichel Roquejoffre*, Université Paul Sabatier Toulouse
(100135378) 
10:30 a.m.
Quenching of combustion by fluid flow.
Alexander Kiselev*, University of Wisconsin, Madison
(100135255)

8:30 a.m.

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

8:30 a.m.
Asymptotics of neckpinching in Ricci flow.
Sigurd B Angenent*, Math Dept/UW Madison
(100153236) 
9:00 a.m.
Ideal boundary conditions and intersection cohomology.
Eugenie Hunsicker*, Lawrence University
(100135259) 
9:30 a.m.
The Bernstein problem in the Heisenberg group.
Nicola Garofalo*, Purdue University
Scott Pauls, Dartmouth University
(100151165) 
10:00 a.m.
Resolvents of elliptic cone operators.
Juan B Gil*, Penn State Altoona
Thomas Krainer, University of Potsdam, Germany
Gerardo A Mendoza, Temple University
(100158246) 
10:30 a.m.
Gluing and comparison formulae for the spectral invariants of Dirac operators on compact and noncompact manifolds.
Paul A Loya*, SUNY Binghamton
(10015849)

8:30 a.m.

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

8:30 a.m.
The existential theory of the jumpusl of Turing degrees with least element.
Manuel Lerman*, University of Connecticut
(10010362) 
9:00 a.m.
What is computability for physical systems?
Anil Nerode*, Department of Mathematics, Cornell University
(100103185) 
9:30 a.m.
On Fra\"{\i}ss\'{e}'s conjecture and some equivalent statements.
Antonio Montalban*, Cornell University
(10010380) 
10:00 a.m.
Mass Problems to the Rescue!
Stephen G. Simpson*, Department of Mathematics, Pennsylvania State University
(10010398) 
10:30 a.m.
Invariance and degree in the lattice of $\Pi^0_1$ classes.
Rebecca Weber*, Penn State
(10010392) 
11:00 a.m.
An Application of Kolmogorov Complexity to the Structure of Scott Sets.
Theodore A. Slaman*, University of California, Berkeley
(100103143)

8:30 a.m.

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

9:00 a.m.
Cylindrical Contact Homology of Subcritical Steinfillable Contact Manifolds.
MeiLin Yau*, Michigan State University
(10015736) 
9:30 a.m.
Mixed Dimensional Compactness and $\mathbb{R}^n X \mathbb{S} ^{n1}$ Sphere Bundle Measures.
Simon P Morgan*, University of Minnesota
(10015309) 
10:00 a.m.
The Theorema Egregium for $\nu$Gaussian curvatures.
Matias Navarro*, Facultad de Matematicas, Universidad Autonoma de Yucatan
F SanchezBringas, Facultad de Ciencias, UNAM
(10015334) 
10:30 a.m.
Comparison theorems for generalized Riccati equations and applications.
Libin Mou*, Bradley University
(100153214)

9:00 a.m.

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

9:00 a.m.
Simple and double eigenvalues of the Hill operator with a two term potential.
Boris Mityagin*, Department of Mathematics, the Ohio State University
Plamen Djakov,
(100147226) 
10:00 a.m.
Asymptotics of spectral gaps of 1D periodic Schroedinger operators with two term potentials.
Plamen Djakov*, Sofia University
Boris Mityagin, The Ohio State University
(10014726) 
10:30 a.m.
Abstract LeftDefinite Theory for Positive SelfAdjoint Operators.
L. L. Littlejohn*, Department of Mathematics and Statistics, Utah State University
(100134302)

9:00 a.m.

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

9:00 a.m.
Towards higherdimensional Langlands correspondence.
Mikhail Kapranov*, Yale University
(100114362) 
10:00 a.m.
Applications of Motivic Integration to Representation Theory.
Thomas C Hales*, University of Pittsburgh
(100122219)

9:00 a.m.

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

9:00 a.m.
Equivariant cohomology of the Quot scheme.
Tom Braden*, University of Massachusetts, Amherst
Linda Chen, Ohio State University
Frank Sottile, Texas A&M University
(100114324) 
9:30 a.m.
The Tequivariant cohomology of cell complexes and the case of infinite Grassmannians.
Megumi Harada*, University of Toronto
(100153228) 
10:00 a.m.
MirkovicVilonen cycles and polytopes.
Joel Kamnitzer*, University of California, Berkeley
(100122307) 
10:30 a.m.
Generalizing group exponents using the topology of subvarieties of the flag variety.
Julianna S Tymoczko*, University of Michigan
(100114428) 
11:00 a.m.
Some new results on Thom polynomials.
Richard Rimanyi*, University of North Carolina at Chapel Hill
(100114321)

9:00 a.m.

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

9:00 a.m.
Transfer of generic representations from $GSp(4)$ to $GL(4)$.
Mahdi Asgari*, Institute for Advanced Study
(100111314) 
9:30 a.m.
Local newforms for GSp(4).
Brooks Roberts*, University of Idaho
Ralf Schmidt, University of Oklahoma
(100122105) 
10:00 a.m.
SaitoKurokawa representations of $PGSp_4$ and its inner forms.
Wee Teck Gan*, University of California, San Diego
(100122346) 
10:30 a.m.
Functoriality and applications.
Muthu Krishnamurthy*, University of Michigan
(100111354) 
11:00 a.m.
Base Change and Ktypes for U(3).
Joshua Michael Lansky*, American University
Jeffrey D. Adler, University of Akron
(100122398)

9:00 a.m.

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

9:00 a.m.
Discussion 
9:30 a.m.
Distribution of length segments for a random geodesic.
Martin Bridgeman*, Boston College
David Dumas, Harvard University
(100100432) 
10:00 a.m.
Towards a classification of Primitive/SeifertFibered tunnel number one knots.
John O. Berge*, Madison, WI
(100157366) 
10:30 a.m.
Punctured torus quasifuchsian groups.
Francois Gueritaud*, University of Southern California
(100157330) 
11:00 a.m.
Heegaard splittings and hyperbolic geometry.
Hossein Namazi*, Yale University and Stony Brook University
(100157422)

9:00 a.m.

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)

9:00 a.m.

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

9:00 a.m.
Constructing Optimal Linear Codes.
Anton Betten*, Colorado State University
(100105208) 
9:30 a.m.
On Optimal linear codes over GF(8).
Christopher M Jones*, St. Mary's College of California
(10019475) 
10:00 a.m.
Identifying codes and their cousins.
Ari Trachtenberg*, Boston University
(100194298) 
10:30 a.m.
Optimal Linear Codes over $Z_4$.
Steven T. Dougherty, University of Scranton
T. Aaron Gulliver*, University of Victoria
(100194340)

9:00 a.m.

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

9:00 a.m.
Plasma sheaths and their dynamics.
M. Slemrod*, University of Wisconsin Madison
(10013540) 
9:30 a.m.
Regularity of solutions to anisotropic elliptic equations.
Gary M Lieberman*, Iowa State University
(100135135) 
10:00 a.m.
On a Multidimensional Model for the Dynamic Combustion of Compressible Reacting Flows.
D. Donatelli, University of L'Aquila
K. Trivisa*, University of Maryland at College Park
(10013593) 
10:30 a.m.
Global Structure of Solutions to a TwoDimensional System of Conservation Laws.
Dehua Wang*, University of Pittsburgh
(10013590)

9:00 a.m.

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)

9:30 a.m.

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

9:30 a.m.
Motivic tubular neighborhoods.
Marc Levine*, Northeastern University
(100114117) 
10:30 a.m.
Ktheory of logschemes.
Wieslawa Krystyna Niziol*, University of Utah
(100111417)

9:30 a.m.

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)

9:30 a.m.

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

3:00 p.m.
Nonlinear Instability of Ideal Plane Flows.
Zhiwu Lin*, Courant Institute
(100176297) 
3:30 p.m.
Linear Stability in an Ideal Incompressible Fluid.
Yuri Latushkin*, Department of Mathematics, University of MissouriColumbia
(100176134) 
4:00 p.m.
Geometric optics spectral theory for advective equations.
Roman Shvydkoy*, University of Illinois at Chicago
(100135240)

3:00 p.m.

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)

3:00 p.m.

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

3:00 p.m.
Automorphism groups of free groups with boundaries.
Nathalie Wahl*, Aarhus University
(100155320) 
3:30 p.m.
Parametrized equivariant stable homotopy theory.
Johann Sigurdsson*, Univeristy of Notre Dame
J. Peter May, The University of Chicago
(100155270) 
4:00 p.m.
The Goodwillie derivatives of a monoid.
Andrew MauerOats*, Northwestern University
(100155334) 
4:30 p.m.
The CircleEquivariant Sigma Orientation.
David Gepner*, University of Illinois UrbanaChampaign
(100155276) 
5:00 p.m.
$\lambda$ring structures over $\mathbf{Z} \lbrack \lbrack x \rbrack \rbrack$.
Donald Y. Yau*, University of Illinois at UrbanaChampaign
(100155101) 
5:30 p.m.
A report on weak ncategories.
J. P. May*, The University of Chicago
(100155284)

3:00 p.m.

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

3:00 p.m.
A model for Landau damping in plasma physics.
Thierry Colin*, University Bordeaux 1
Radouin Belaouard, CEACESTA
Gerard Gallice, CEACESTA
Cedric Galusinski, University Bordeaux 1
(10013559) 
3:30 p.m.
Forward stimulated Brillouin scattering instability of a spatially and temporally incoherent laser beam.
Pavel M Lushnikov*, Department of Mathematics, University of Notre Dame
(100178375)

3:00 p.m.

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

3:00 p.m.
A Grammatical Approach to SelfOrganizing Robotic Systems.
Eric Klavins*, University of Washington
(100168172) 
3:30 p.m.
Coverage, Complexity and Feasibility Issues in Mobile Sensor Networks.
Abubakr Muhammad*, Georgia Institute of Technology, Atlanta, GA
(100193371) 
4:00 p.m.
Deterministic Sampling Methods for Spheres and SO(3).
Anna Yershova*, University of Illinois
Steven M. LaValle, University of Illinois
(100168328) 
4:30 p.m.
Collisionfree motion planning.
Michael Farber*, University of Durham, UK
(100155397)

3:00 p.m.

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)

3:00 p.m.

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

3:00 p.m.
On the stability of invariant distributions over local fields.
David Kazhdan*, Hebrew university, Jerusaelm, Israel
(10011773) 
4:00 p.m.
Uhlenbeck spaces for ${\mathbb A}^2$ and affine Lie algebras.
Michael Finkelberg*, Independent Moscow University
(10011476)

3:00 p.m.

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)

3:00 p.m.

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)

3:00 p.m.

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

3:00 p.m.
A construction of primitive ideals in enveloping algebras by explicit generators.
Victor Protsak*, Department of Mathematics, University of Oklahoma
(100117319) 
3:30 p.m.
Jacquet modules for $p$adic general linear groups.
Chris S. Jantzen*, East Carolina University
(10012246) 
4:00 p.m.
Supercuspidal characters of $SL_\ell$ over a $p$adic field, $\ell$ a prime.
Loren R Spice*, University of Michigan
(100122116) 
4:30 p.m.
On the local constancy of characters.
Jonathan Korman*, Univ. of Toronto, Math. Dept.
(10012263)

3:00 p.m.

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)

3:00 p.m.

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

3:00 p.m.
Secondorder superintegrable systems on conformally flat spaces.
Willard Miller*, School of Mathematics, University of Minnesota
(10013396) 
3:30 p.m.
The coexistence problem for the Heun equation.
Hans W Volkmer*, Univeristy of WisconsinMilwaukee
(100133217) 
4:00 p.m.
A nonlinear differential equation satisfied by modular forms with level 2.
Heekyoung Hahn*, University of Rochester
(100133193)

3:00 p.m.

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

3:00 p.m.
Towards a MetaPhysics of the Musical Mind: Canonical Formulation of Weber/Fechner's Law in Application to Tonal Music.
Thomas Noll*, Technical University of Berlin
(100122359) 
4:00 p.m.
Toward a General Theory of Key Signatures and Enharmonic Equivalence.
Julian Hook*, Indiana University
(10010084) 
5:00 p.m.
Piano technique and permutation groups.
Lucian B. Zidaru*, Louisiana State University
Robert W. Peck, Louisiana State University
(100120413)

3:00 p.m.

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

3:00 p.m.
Hopf algebras at the crossroads: mathematical structure in quantum fields.
Dirk Kreimer*, CNRSIHES and Center for Math.Phys., Boston Univ.
(100181102) 
3:30 p.m.
Representations of the Poincare 2Group.
Louis Crane*, Kansas State University
(100118215) 
4:00 p.m.
Groupoidenriched groupoid category, Frobenius algebra, and relativity.
Zbigniew Oziewicz*, Universidad Nacional Autonoma de Mexico, Facultad de Estudios Superiores Cuautitlan
(100118160) 
4:30 p.m.
On the Tensor Product of an Oriented Quantum Algebra with Itself.
David E. Radford*, University of Illinois at Chicago
(100116384) 
5:00 p.m.
Quantum Invariants of Virtual Knots and Links.
Louis H Kauffman*, University of Illinois at Chicago
(100157286)

3:00 p.m.

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

3:00 p.m.
Random geometric graph diameter threshold in the unit disk.
Robert B. Ellis*, Texas A&M University
Xingde Jia, Texas State UniversitySan Marcos
Jeremy L. Martin, University of Minnesota
Catherine H. Yan, Texas A&M University
(100105391) 
3:30 p.m.
On the abelian sandpile model.
Evelin Toumpakari*, Department of Mathematics, University of Chicago
(100105403)

3:00 p.m.

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

3:00 p.m.
Travelling fronts in a Boussinesq system.
Henri Berestycki*, EHESS
(100135312) 
4:00 p.m.
Advectiondiffusion for cellular flows at high Peclet number.
Alexei Novikov*, Penn State University
George Papanicolaou, Stanford University
Lenya Ryzhik, University of Chicago
(100176233) 
5:00 p.m.
Quenching and Propagation of Combustion Without Ignition Temperature Cutoff.
Andrej Zlatos*, University of Wisconsin  Madison
(100135390)

3:00 p.m.

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)

3:00 p.m.

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)

3:00 p.m.

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

3:00 p.m.
The Calder\'on problem with partial data.
Gunther Uhlmann*, University of Washington
(100135115) 
3:30 p.m.
Support Theorems For Generalizations of Radon Tranforms and Inverse Problems.
Antonio C Sa Barreto*, Purdue University
(100135317) 
4:00 p.m.
Picard modular groups in complex hyperbolic spaces.
Gabor Francsics*, Michigan State University
(100135318) 
4:30 p.m.
Integral geometry of tensor fields and the boundary rigidity problem.
Plamen Stefanov*, Purdue University
Gunther Uhlmann, University of Washington
(10015371) 
5:00 p.m.
Harmonic Solutions to Some Fully Nonlinear Second Order PDEs on $\mathbb{R}^2$.
Joseph L Shomberg*, University of Wisconsin  Milwaukee
(100135411)

3:00 p.m.

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)

3:00 p.m.

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

3:00 p.m.
Genetic Algorithms for zerodimensional ideals.
Ilias S. Kotsireas*, Assistant Professor, Wilfrid Laurier University
(100114221) 
3:30 p.m.
Toric residues and partitions of polytopes.
Amit Khetan, University of Massachusetts, Amherst
Ivan Soprounov*, University of Massachusetts, Amherst
(100114258) 
4:00 p.m.
Break 
4:30 p.m.
Approximate GCD and Factorization of Multivariate Polynomials.
Zhonggang Zeng*, Northeastern Illinois University
(100165232) 
5:00 p.m.
Solving Multivariate Polynomial Systems.
Hong Zhang*, Illinois Institute of Technology and Argonne National Laboratory
(100165146) 
5:30 p.m.
Numerical Jet Geometry of Partial Differential Equations.
Greg J. Reid*, University of Western Ontario
(100135207)

3:00 p.m.