AMS Sectional Meeting Full Program

Current as of Sunday, May 3, 2009 00:21:11

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Program  |  Deadlines  |  Abstract submission |  Registration/Housing/Etc.  |  Inquiries:  meet@ams.org

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2009 Spring Western Section Meeting
San Francisco, CA, April 25-26, 2009 (Saturday - Sunday)
Meeting #1049

Associate secretaries:
Michel L Lapidus, AMS lapidus@math.ucr.edu, lapidus@mathserv.ucr.edu

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Saturday April 25, 2009

• Saturday April 25, 2009, 7:30 a.m.-4:00 p.m.
  Meeting Registration
  Third Floor Lobby, Thornton Hall
• Saturday April 25, 2009, 7:30 a.m.-4:00 p.m.
  Exhibit and Book Sale
  Room 429, Thornton Hall
• Saturday April 25, 2009, 8:00 a.m.-10:50 a.m.
  Special Session on Nonlinear Partial Differential Equations, I
  Room 432, Thornton Hall
  Organizers:
  Igor Kukavica, University of Southern California kukavica@usc.edu
  Amjad Tuffaha, University of Southern California tuffaha@usc.edu
  Mohammed Ziane, University of Southern California ziane@usc.edu
  

  • 8:00 a.m.
    Well-posedness and long time behavior of weak solutions to Boussinesq-Kirchoff equations.
    Irena M Lasiecka*, University of Virginia
    (1049-35-138)
  • 8:30 a.m.
    Filtering, smoothing, and quasi-reversibility, and their relationship to the estimation and forecasting problems in chaotic PDE systems with diffusion.
    Thomas R Bewley*, UC San Diego
    (1049-35-17)
  • 9:00 a.m.
    Global regularity for the 2D MHD equations with mixed partial dissipation and magnetic diffusion.
    Jiahong Wu*, Oklahoma State University
    (1049-35-42)
  • 9:30 a.m.
    A degenerate hyperbolic free-boundary problem for 3D compressible Euler flow in physical vacuum and the method of artificial phase.
    Steve Shkoller*, UC Davis
    (1049-35-154)
  • 10:00 a.m.
    Free boundary problems of the Euler equation: local well-posedness and hydrodynamical instabilities.
    Jalal Shatah, New York University
    Chongchun Zeng*, Georgia Institute of Technology
    (1049-35-157)
  • 10:30 a.m.
    Local Bifurcations in Random Dynamical Systems.
    Mickaël David Chekroun*, Ecole Normale Supérieure
    (1049-35-193)
• Saturday April 25, 2009, 8:00 a.m.-10:50 a.m.
  Special Session on Banach Algebras, Topological Algebras, and Abstract Harmonic Analysis, I
  Room 425, Thornton Hall
  Organizers:
  Thomas V. Tonev, University of Montana-Missoula tonevtv@mso.umt.edu
  Fereidoun Ghahramani, University of Manitoba fereidou@cc.umanitoba.ca
  

  • 8:00 a.m.
    A Cauchy-Riemann equation for generalized analytic functions.
    John Wermer*, Brown University
    (1049-32-43)
  • 8:30 a.m.
    Function Algebras Invariant under Group Actions.
    Alexander J. Izzo*, Bowling Green State University
    (1049-32-31)
  • 9:00 a.m.
    Peak point theorems.
    John T Anderson*, College of the Holy Cross
    (1049-46-184)
  • 9:30 a.m.
    On Farhadi--Ghahramani's multiplier problem.
    Matthias L Neufang*, Carleton University
    (1049-43-168)
  • 10:00 a.m.
    A comparison of some Arens irregularities.
    Zhiguo Hu*, University of Windsor
    Matthias Neufang, Carleton University
    (1049-43-160)
  • 10:30 a.m.
    Gelfand duality for pro-$C^*$-algebras and non-commutative $k$-spaces.
    Gabor Lukacs*, University of Manitoba
    Rachid El Harti, University Hassan I, FST de Settat
    (1049-46-134)
• Saturday April 25, 2009, 8:00 a.m.-10:40 a.m.
  Special Session on Concentration Inequalities, I
  Room 335, Thornton Hall
  Organizers:
  Sourav Chatterjee, University of California Berkeley sourav@stat.berkeley.edu
  Roman Vershynin, University of California Davis vershynin@math.ucdavis.edu
  

  • 8:00 a.m.
    Stein's Method for concentration inequalities - some applications.
    Sourav Chatterjee, UC Berkeley
    Partha S Dey*, UC Berkeley
    (1049-60-176)
  • 9:00 a.m.
    Hensley's theorem and isotropic positions of convex measures.
    Sergey G Bobkov*, University of Minnesota
    (1049-46-149)
  • 10:00 a.m.
    Random Tensors and Planted Cliques.
    Charlie Brubaker, Georgia Tech
    Santosh S Vempala*, Georgia Tech
    (1049-60-169)
• Saturday April 25, 2009, 8:00 a.m.-10:50 a.m.
  Special Session on Geometry and Topology of Orbifolds, I
  Room 210, Thornton Hall
  Organizers:
  Elizabeth Stanhope, Lewis & Clark University stanhope@lclark.edu
  Joseph E. Borzellino, California State University San Luis Obispo jborzell@calpoly.edu
  

  • 8:00 a.m.
    Applications of heat invariants to 2-orbifolds.
    Sarah J Greenwald*, Appalachian State University
    Emily Dryden, Bucknell University
    Carolyn Gordon, Dartmouth College
    David Webb, Dartmouth College
    (1049-53-178)
  • 8:30 a.m.
    Geodesics on weighted projective spaces.
    Victor Guillemin, MIT
    Alejandro Uribe, University of Michgan
    Zuoqin Wang*, Johns Hopkins University
    (1049-58-135)
  • 9:00 a.m.
    Bounds on 2-orbifold diffeomorphism type.
    Emily B. Proctor*, Middlebury College
    Elizabeth A. Stanhope, Lewis & Clark College
    (1049-53-103)
  • 9:30 a.m.
    Cohomogeneity 3 Actions on the Sphere.
    J. McGowan*, Howard University
    C. Searle, Instituto de Matematicas Unidad Cuernavaca-UNAM
    (1049-53-97)
  • 10:00 a.m.
    Non-negatively curved manifolds with maximal symmetry rank in low dimensions.
    Catherine E Searle*, IMATE-UNAM Cuernavaca
    Fernando Galaz-Garcia, U Maryland College Park
    (1049-53-158)
  • 10:30 a.m.
    Connections between singular spaces: leaf spaces of Riemannian manifolds and orbifolds.
    Mary R Sandoval*, Trinity College
    (1049-58-105)
• Saturday April 25, 2009, 8:00 a.m.-10:50 a.m.
  Special Session on Matroids in Algebra and Geometry, I
  Room 113, Hensill Hall
  Organizers:
  Federico Ardila, San Francisco State University federico@math.sfsu.edu
  Lauren Williams, Harvard University lauren@math.harvard.edu
  

  • 8:00 a.m.
    How to draw a tropical plane.
    Sven Hermann, Technical University Darmstadt, Germany
    Anders Jensen, University of Gottingen, Germany
    Michael Joswig, Technical University Darmstadt, Germany
    Bernd Sturmfels*, University of California at Berkeley
    (1049-05-18)
  • 9:00 a.m.
    Cellular resolutions of monomial ideals from coarse tropical type decompositions.
    Anton Dochtermann*, TU Berlin
    Michael Joswig, TU Darmstadt
    Raman Sanyal, UC Berkeley
    (1049-05-179)
  • 10:00 a.m.
    Valuations for matroid polytope subdivisions.
    Federico Ardila, San Francisco State University
    Alex Fink, University of California, Berkeley
    Felipe Rincon*, University of California, Berkeley
    (1049-05-112)
  • 10:30 a.m.
    Universality for valuations of matroid polytope subdivisions.
    Alex R Fink*, UC Berkeley
    (1049-05-116)
• Saturday April 25, 2009, 8:00 a.m.-10:40 a.m.
  Special Session on Aspects of Differential Geometry, I
  Room 325, Thornton Hall
  Organizers:
  David Bao, San Francisco State University bao@math.sfsu.edu
  Lei Ni, University of California San Diego lni.math.ucsd@gmail.com
  

  • 8:00 a.m.
    Weighted Poincare inequality and Ricci curvature lower bound.
    Jiaping Wang*, School of mathematics; University of Minnesota
    Peter Li, University of Califronia, Irvine
    (1049-58-30)
  • 9:00 a.m.
    Geometric applications of monotone entropy quantities for parabolic PDE.
    Brett L Kotschwar*, Massachusetts Institute of Technology
    (1049-53-65)
  • 10:00 a.m.
    Exceptional compact simply connected spaces with positive pinching.
    Nolan R Wallach*, University of California, San Diego
    (1049-53-60)
• Saturday April 25, 2009, 8:30 a.m.-10:50 a.m.
  Special Session on Applications of Knot Theory to the Entanglement of Biopolymers, I
  Room 210, Science Building
  Organizers:
  Javier Arsuaga, San Francisco State University jarsuaga@sfsu.edu
  Kenneth Millett, University of California Santa Barbara millett@math.ucsb.edu
  Mariel Vazquez, San Francisco State University mariel@math.sfsu.edu
  

  • 8:30 a.m.
    Knot Theoretic Analysis of Difference Topology Experiments on a Protein-DNA complex.
    Isabel Darcy, University of Iowa
    John Luecke*, University of Texas at Austin
    Mariel Vazquez, San Francisco State University
    (1049-57-85)
  • 9:30 a.m.
    Analyzing DNA Transposition and Recombination by Difference Topology.
    Makkuni Jayaram*, University of Texas at Austin
    (1049-03-41)
  • 10:00 a.m.
    Tangle analysis of protein-DNA complexes.
    Isabel K. Darcy*, University of Iowa
    (1049-57-53)
  • 10:30 a.m.
    New Mechanistic Insights into Flp and Cre Recombination from DNA Loop-closure Kinetics.
    Stephen D Levene*, University of Texas at Dallas
    (1049-92-150)
• Saturday April 25, 2009, 8:30 a.m.-10:50 a.m.
  Special Session on Algebra and Number Theory with Polyhedra, I
  Room 108, Hensill Hall
  Organizers:
  Matthias Beck, San Francisco State University beck@math.sfsu.edu
  Christian Haase, Freie Universität Berlin Christian.Haase@math.fu-berlin.de
  

  • 8:30 a.m.
    Volumes of matroid polytopes.
    Federico Ardila, SFSU
    Carolina Benedetti, Universidad de los Andes
    Jeffrey Doker*, UC Berkeley
    (1049-05-90)
  • 9:00 a.m.
    Bounds on lattice polygons and the classification of toric log Del Pezzo surfaces.
    Alexander M. Kasprzyk, IMSAS, University of Kent
    Maximilian Kreuzer, Institute for Theoretical Physics, Vienna University of Technology
    Benjamin Nill*, Institute of Mathematics, Freie Universitaet Berlin
    (1049-52-143)
  • 9:30 a.m.
    Lattice Polytopes in polymake.
    Michael Joswig, TU Darmstadt
    Benjamin Mueller, FU Berlin
    Andreas Paffenholz*, FU Berlin
    (1049-05-145)
  • 10:00 a.m.
    b-transshipments, modular flow reciprocity, and a combinatorial interpretation of the Tutte polynomial.
    Raman Sanyal*, University of California, Berkeley
    (1049-05-211)
  • 10:30 a.m.
    The balanced minimum evolution polytopes.
    Ruriko Yoshida*, University of Kentucky
    (1049-05-79)
• Saturday April 25, 2009, 9:00 a.m.-10:40 a.m.
  Special Session on Lie group actions, Teichmüller Flows and Number Theory, I
  Room 329, Thornton Hall
  Organizers:
  Jayadev Athreya, Yale University jayadev.athreya@yale.edu
  Yitwah Cheung, San Francisco State University cheung@math.sfsu.edu
  Anton Zorich, Rennes University Anton.Zorich@univ-rennes1.fr
  

  • 9:00 a.m.
    Billiards in rectangles with slits.
    Howard Masur*, University of Chicago
    Yitwah Cheung, San Francisco State University
    Pascal Hubert, Marseilles University
    (1049-37-119)
  • 10:00 a.m.
    On the minimum dilatation of pseudo-Anosov diffeomorphisms on surfaces of small genera.
    Erwan Lanneau*, Centre de Physique Theorique, Marseille, France
    (1049-37-144)
• Saturday April 25, 2009, 9:00 a.m.-10:50 a.m.
  Special Session on Recent Progress in Geometric Group Theory, I
  Room 327, Thornton Hall
  Organizers:
  Seonhee Lim, Cornell University slim@math.cornell.edu)
  Anne Thomas, Cornell University athomas@math.cornell.edu
  

  • 9:00 a.m.
    Twisting out fully irreducible automorphisms.
    Alexandra R Pettet*, University of Michigan
    Matt Clay, University of Oklahoma
    (1049-20-181)
  • 9:30 a.m.
    Linear Bound for the Length of a Conjugating Element in the Mapping Class Group.
    Jing Tao*, University of Illinois at Chicago
    (1049-51-94)
  • 10:00 a.m.
    Symplectic structures on right-angled Artin groups: between the mapping class group and the symplectic group.
    Matthew B Day*, California Institute of Technology
    (1049-20-91)
  • 10:30 a.m.
    Surface Subgroups of Graph Products of Groups.
    Sang-hyun Kim*, the University of Texas at Austin
    (1049-20-107)
• Saturday April 25, 2009, 9:00 a.m.-10:50 a.m.
  Special Session on Nonlinear Dispersive Equations, I
  Room 409, Thornton Hall
  Organizers:
  Sebastian Herr, University of California Berkeley herr@math.berkeley.edu
  Jeremy L. Marzuola, Columbia University jm3058@columbia.edu
  

  • 9:00 a.m.
    Blow up phenomena in energy critical dispersive equations.
    Daniel Tataru*, University of California, Berkeley
    (1049-35-109)
  • 10:00 a.m.
    Remarks on global a priori estimates for the nonlinear Schroedinger equation.
    Nikolaos Tzirakis*, University of Illinois
    (1049-35-36)
  • 10:30 a.m.
    On the Cauchy problem for focusing and defocusing Gross-Pitaevskii hierarchies.
    Thomas Chen, University of Texas at Austin
    Natasa Pavlovic*, University of Texas at Austin
    (1049-35-27)
• Saturday April 25, 2009, 9:30 a.m.-10:50 a.m.
  Special Session on Advances in the Theory of Integer Linear Optimization and its Extensions, I
  Room 206, Hensill Hall
  Organizers:
  Matthias Koeppe, University of California Davis mkoeppe@math.ucdavis.edu
  Peter Malkin, University of California Davis malkin@math.ucdavis.edu
  

  • 9:30 a.m.
    Basis reduction, and the complexity of branch-and-bound.
    Gabor Pataki*, Dept of Statistics and Operations Research, UNC Chapel Hill
    Mustafa Tural, Dept of Statistics and Operations Research, UNC Chapel Hill
    (1049-90-28)
  • 10:00 a.m.
    Lattice-based Approaches to Number Partitioning in the Hard Phase.
    Bala Krishnamoorthy*, Washington State University
    William Webb, Washington State University
    Nathan Moyer, Washington State University
    (1049-90-68)
  • 10:30 a.m.
    Facets of the Mixed Integer Cut.
    Ellis L. Johnson*, Georgia Tech
    (1049-90-101)
• Saturday April 25, 2009, 11:10 a.m.-12:00 p.m.
  Invited Address
  Asymptotic properties of finite groups and finite-dimensional algebras.
  Room 201, Science Building
  Efim Zelmanov*, University of California San Diego
  (1049-17-04)
• Saturday April 25, 2009, 2:00 p.m.-2:50 p.m.
  Invited Address
  Concentration of measure, convex geometry and random matrices.
  Room 201, Science Building
  Roman Vershynin*, University of Michigan
  (1049-60-02)
• Saturday April 25, 2009, 3:00 p.m.-5:20 p.m.
  Special Session on Applications of Knot Theory to the Entanglement of Biopolymers, II
  Room 210, Science Building
  Organizers:
  Javier Arsuaga, San Francisco State University jarsuaga@sfsu.edu
  Kenneth Millett, University of California Santa Barbara millett@math.ucsb.edu
  Mariel Vazquez, San Francisco State University mariel@math.sfsu.edu
  

  • 3:00 p.m.
    Discussion
  • 4:00 p.m.
    Size and Shape of Knotted Polymers.
    Eric J Rawdon*, University of St. Thomas
    (1049-57-52)
  • 4:30 p.m.
    Knots, Ephmeral Knots and Slipknots in Random Walks and Equilateral Polygons.
    Kenneth C Millett*, University of California, Santa Barbara
    (1049-57-62)
  • 5:00 p.m.
    The Writhe of Oriented Polygonal Graphs.
    Christian Laing, New York University
    De Witt Sumners*, Florida State University
    (1049-57-121)
• Saturday April 25, 2009, 3:00 p.m.-5:50 p.m.
  Special Session on Algebra and Number Theory with Polyhedra, II
  Room 108, Hensill Hall
  Organizers:
  Matthias Beck, San Francisco State University beck@math.sfsu.edu
  Christian Haase, Freie Universität Berlin Christian.Haase@math.fu-berlin.de
  

  • 3:00 p.m.
    Average Behavior of the Frobenius Numbers.
    Iskander Aliev, Cardiff University
    Martin Henk*, Universitaet Magdeburg
    (1049-52-84)
  • 3:30 p.m.
    Tiling lattices with translates of sublattices.
    Sinai Robins*, Nanyang Technological University
    James Propp, University of Massachussetts, Lowell
    (1049-52-152)
  • 4:00 p.m.
    Growth series of cyclotomic and root lattices.
    Serkan Hosten*, San Francisco State University Mathematics Department
    (1049-05-190)
  • 4:30 p.m.
    A Finite Calculus Approach to Ehrhart Polynomials.
    Kevin Woods*, Oberlin College
    (1049-05-188)
  • 5:00 p.m.
    Weighted Ehrhart Theory.
    Alan Michael Stapledon*, University of Michigan
    (1049-05-35)
  • 5:30 p.m.
    Nowhere harmonic colorings of graphs.
    Benjamin J Braun*, University of Kentucky
    Matthias Beck, San Francisco State University
    (1049-05-113)
• Saturday April 25, 2009, 3:00 p.m.-4:40 p.m.
  Special Session on Lie group actions, Teichmüller Flows and Number Theory, II
  Room 329, Thornton Hall
  Organizers:
  Jayadev Athreya, Yale University jayadev.athreya@yale.edu
  Yitwah Cheung, San Francisco State University cheung@math.sfsu.edu
  Anton Zorich, Rennes University Anton.Zorich@univ-rennes1.fr
  

  • 3:00 p.m.
    Computing L-functions with homogeneous dynamics.
    Akshay Venkatesh*, Stanford University
    (1049-11-118)
  • 4:00 p.m.
    Dynamical properties of automorphisms of Cartan geometries.
    Charles Frances*, Université Paris-Sud, Orsay
    (1049-53-140)
• Saturday April 25, 2009, 3:00 p.m.-5:50 p.m.
  Special Session on Nonlinear Partial Differential Equations, II
  Room 432, Thornton Hall
  Organizers:
  Igor Kukavica, University of Southern California kukavica@usc.edu
  Amjad Tuffaha, University of Southern California tuffaha@usc.edu
  Mohammed Ziane, University of Southern California ziane@usc.edu
  

  • 3:00 p.m.
    Semigroup-wellposedness, strong and uniform stability of a hyperbolic-parabolic Stokes-Lame fluid-structure interaction model.
    Roberto Triggiani*, Mathematics Department, U of Virginia
    (1049-35-191)
  • 3:30 p.m.
    The quintic NLS as the mean field limit of a Boson gas with three-body interactions.
    Thomas Chen, University of Texas at Austin
    Natasa Pavlovic*, University of Texas at Austin
    (1049-35-25)
  • 4:00 p.m.
    Commuting conditional expectations and nonlinear evolution.
    Alexandre J. Chorin*, University of California, Berkeley.
    (1049-35-61)
  • 4:30 p.m.
    Vanishing viscosity and the accumulation of vorticity on the boundary.
    James P Kelliher*, University of Caifornia, Riverside
    (1049-76-161)
  • 5:00 p.m.
    AeroElastic Stability in Viscous Flow.
    A. V, Balakrishnan*, University of California Los Angeles-UCLA
    (1049-35-48)
  • 5:30 p.m.
    Discussion
• Saturday April 25, 2009, 3:00 p.m.-5:50 p.m.
  Special Session on Banach Algebras, Topological Algebras, and Abstract Harmonic Analysis, II
  Room 425, Thornton Hall
  Organizers:
  Thomas V. Tonev, University of Montana-Missoula tonevtv@mso.umt.edu
  Fereidoun Ghahramani, University of Manitoba fereidou@cc.umanitoba.ca
  

  • 3:00 p.m.
    Transformations on the space of positive operators.
    Lajos Molnar*, University of Debrecen
    (1049-46-86)
  • 3:30 p.m.
    Peripheral Multiplicativity and Isomorphisms Between Standard Operator Algebras.
    Thomas Tonev, University of Montana
    Aaron Luttman*, Clarkson University
    (1049-47-15)
  • 4:00 p.m.
    Norm--Linear and Norm--Additive Operators Between Uniform Algebras.
    Thomas Tonev, University of Montana
    Rebekah Yates*, University of Montana
    (1049-46-162)
  • 4:30 p.m.
    Biflatness and biprojectivity of the Fourier algebra.
    Volker Runde*, University of Alberta
    (1049-43-87)
  • 5:00 p.m.
    Approximate amenability of Beurling algebras.
    Yong Zhang*, Department of Mathematics, University of Manitoba
    (1049-46-117)
  • 5:30 p.m.
    Unitary representations and the Eberlein compactification of a locally compact group.
    Nico Spronk, University of Waterloo
    Ross Stokke*, University of Winnipeg
    (1049-43-132)
• Saturday April 25, 2009, 3:00 p.m.-5:20 p.m.
  Special Session on Recent Progress in Geometric Group Theory, II
  Room 327, Thornton Hall
  Organizers:
  Seonhee Lim, Cornell University slim@math.cornell.edu)
  Anne Thomas, Cornell University athomas@math.cornell.edu
  

  • 3:00 p.m.
    Rank 2 nondiscrete affine buildings.
    Arkady Berenstein, Department of Mathematics, University of Oregon
    Michael Kapovich*, Department of Mathematics, University of California, Davis
    (1049-51-98)
  • 4:00 p.m.
    Commensurability and unfoldings of uniform lattices in right-angled buildings.
    Angela Kubena Barnhill*, Northwestern University
    Anne Thomas, Cornell University
    (1049-20-207)
  • 4:30 p.m.
    The $\ell^2$-invariants of clean 2-complexes.
    Ethan Berkove, Lafayette College
    Sejal Dharia, San José State University
    Tim Hsu*, San José State University
    (1049-20-200)
  • 5:00 p.m.
    Unusual Geodesics in Generalizations of Thompson's Group.
    Claire Wladis*, BMCC/CUNY
    (1049-20-11)
• Saturday April 25, 2009, 3:00 p.m.-5:40 p.m.
  Special Session on Concentration Inequalities, II
  Room 335, Thornton Hall
  Organizers:
  Sourav Chatterjee, University of California Berkeley sourav@stat.berkeley.edu
  Roman Vershynin, University of California Davis vershynin@math.ucdavis.edu
  

  • 3:00 p.m.
    Concentration inequalities for eigenvalues of random matrices.
    Michel LEDOUX*, University of Toulouse
    (1049-60-37)
  • 4:00 p.m.
    On fine properties of mixtures with respect to concentration of measure and Sobolev type inequalities.
    Djalil Chafai*, Institut de Mathematiques de Toulouse and INRA, France
    Florent Malrieu, IRMAR, Universite de Rennes, France
    (1049-60-14)
  • 5:00 p.m.
    Concentration via coupling and some applications.
    Jean-René Chazottes*, CNRS-Ecole Polytechnique
    (1049-60-96)
• Saturday April 25, 2009, 3:00 p.m.-5:20 p.m.
  Special Session on Nonlinear Dispersive Equations, II
  Room 409, Thornton Hall
  Organizers:
  Sebastian Herr, University of California Berkeley herr@math.berkeley.edu
  Jeremy L. Marzuola, Columbia University jm3058@columbia.edu
  

  • 3:00 p.m.
    A system of ODEs for a Perturbation of a Minimal Mass Soliton.
    Jeremy Marzuola, Columbia University and Bonn University
    Sarah Raynor*, Wake Forest University
    Gideon Simpson, University of Toronto
    Catherine Sulem, University of Toronto
    (1049-35-16)
  • 3:30 p.m.
    Soliton evolution in the Hartree equation with slowly varying potential.
    Kiril Datchev*, University of California, Berkeley
    Ivan Ventura, University of California, Berkeley
    (1049-35-123)
  • 4:00 p.m.
    A Centre-Stable Manifold in $H^{1/2}$ for the $H^{1/2}$ Critical NLS.
    Marius Beceanu*, University of Chicago
    (1049-35-111)
  • 4:30 p.m.
    Stable Directions for Degenerate Excited States of Nonlinear Schrödinger Equations.
    Stephen Gustafson, University of British Columbia
    Tuoc Van Phan*, University of British Columbia
    (1049-35-174)
  • 5:00 p.m.
    Abstract Strichartz estimates and the Strauss conjecture for the wave equation in exterior domains.
    Jason Metcalfe*, University of North Carolina
    (1049-35-183)
• Saturday April 25, 2009, 3:00 p.m.-4:50 p.m.
  Special Session on Geometry and Topology of Orbifolds, II
  Room 210, Thornton Hall
  Organizers:
  Elizabeth Stanhope, Lewis & Clark University stanhope@lclark.edu
  Joseph E. Borzellino, California State University San Luis Obispo jborzell@calpoly.edu
  

  • 3:00 p.m.
    Generalized twisted sectors and applications.
    Carla Farsi, University of Colorado at Boulder
    Christopher Seaton*, Rhodes College
    (1049-53-74)
  • 3:30 p.m.
    Generating Functions for Orbifold Wreath Products.
    Carla Farsi*, University of Colorado
    Christopher Seaton, Rhodes College
    (1049-58-75)
  • 4:00 p.m.
    Lusternik-Schnirelmann category for orbifolds as Lie groupoids.
    Hellen Colman*, Wilbur Wright College
    (1049-55-78)
  • 4:30 p.m.
    The Stratified Structure of Spaces of Smooth Orbifold Mappings.
    Joseph E Borzellino, California State Polytechnic University, San Luis Obispo
    Victor W Brunsden*, Penn State Altoona
    (1049-57-67)
• Saturday April 25, 2009, 3:00 p.m.-5:50 p.m.
  Special Session on Advances in the Theory of Integer Linear Optimization and its Extensions, II
  Room 206, Hensill Hall
  Organizers:
  Matthias Koeppe, University of California Davis mkoeppe@math.ucdavis.edu
  Peter Malkin, University of California Davis malkin@math.ucdavis.edu
  

  • 3:00 p.m.
    Parametric Nonlinear Discrete Optimization.
    Jon Lee*, IBM TJ Watson Research Center
    (1049-90-24)
  • 3:30 p.m.
    SDP representation of convex sets.
    Jiawang Nie*, University of California, San Diego
    J. William Helton, University of California, San Diego
    (1049-90-115)
  • 4:00 p.m.
    A new SDP approach to the Max-Cut problem.
    Joao Gouveia*, University of Washington
    Monique Laurent, Centrum Wiskunde & Informatica (CWI)
    Pablo A Parrilo, Massachusetts Institute of Technology
    Rekha R Thomas, University of Washington
    (1049-90-38)
  • 4:30 p.m.
    Conic lifting.
    Alper Atamturk*, UC Berkeley
    Vishnu Narayanan, IIT Bombay
    (1049-90-32)
  • 5:00 p.m.
    Computing Infeasibility Certificates for Combinatorial Problems via Hilbert's Nullstellensatz.
    J.A. De Loera, University of California, Davis
    Jon Lee, IBM T.J. Watson Research Center, Yorktown Heights, NY
    Peter N. Malkin, University of California, Davis
    Susan Margulies*, Rice University
    (1049-05-185)
  • 5:30 p.m.
    Gauging feasibility of integer linear programs.
    Jesus A De Loera*, University of California, Davis
    (1049-90-203)
• Saturday April 25, 2009, 3:00 p.m.-5:40 p.m.
  Special Session on Matroids in Algebra and Geometry, II
  Room 113, Hensill Hall
  Organizers:
  Federico Ardila, San Francisco State University federico@math.sfsu.edu
  Lauren Williams, Harvard University lauren@math.harvard.edu
  

  • 3:00 p.m.
    Gale duality and Koszul duality.
    Tom Braden, University of Massachusetts
    Anthony Licata, Stanford University
    Nicholas Proudfoot*, University of Oregon
    Ben Webster, Massachusetts Institute of Technology
    (1049-16-71)
  • 4:00 p.m.
    Random Walks and Hyperplane Arrangements.
    Persi Diaconis*, Stanford University, Departments of Mathematics & Statistics
    (1049-05-29)
  • 5:00 p.m.
    Zonotopal combinatorics.
    Olga Holtz*, UC Berkeley and TU Berlin
    Amos Ron, UW Madison
    (1049-05-195)
• Saturday April 25, 2009, 3:00 p.m.-5:40 p.m.
  Special Session on Aspects of Differential Geometry, II
  Room 325, Thornton Hall
  Organizers:
  David Bao, San Francisco State University bao@math.sfsu.edu
  Lei Ni, University of California San Diego lni.math.ucsd@gmail.com
  

  • 3:00 p.m.
    The geometry of static and stationary spacetimes.
    Richard Schoen*, Stanford University
    (1049-53-54)
  • 4:00 p.m.
    Soliton equations and Gauss-Codazzi equations.
    Chuu-Lian Terng*, Department of Mathematics, University of California at Irvine
    (1049-53-72)
  • 5:00 p.m.
    Operator calculus and New geometric methods in analysis and topology.
    Jenny Harrison*, University of California, Berkeley
    (1049-53-58)
• Saturday April 25, 2009, 3:00 p.m.-5:55 p.m.
  Contributed Paper Session
  Room 428, Thornton Hall
  

  • 3:00 p.m.
    Stability of Nonlinear Differential Equations.
    rod freed*, California State University
    (1049-37-128)
  • 3:15 p.m.
    Cell Discovery in Networks with Transient Links.
    Thomas J Emerson*, Eigenvector Consulting
    (1049-68-204)
  • 3:30 p.m.
    A Discrete Pharmacokinetics Compartmental Model.
    Mostafa Ghandehari*, University of Texas at Arlington
    Shiva Keramati, none
    (1049-15-09)
  • 3:45 p.m.
    The Numerical Solution for the Exterior Dirichlet Problem for the Helmholtz Equation via the Jones integral equation approach specifically for the 'peanut' shape.
    Yajni M. Warnapala, Roger Williams University
    Elizabeth Morgan*, Roger Williams University
    (1049-45-104)
  • 4:00 p.m.
    The enveloping algebra of the Petrogradsky-Shestakov-Zelmanov algebra is not graded-nil in the critical characteristics.
    Ya. S. Krylyuk*, De Anza College
    (1049-17-47)
  • 4:15 p.m.
    Powered sums as linear combinations of binomial coefficients.
    Hung-ping Tsao*, Novato, California
    (1049-11-05)
  • 4:30 p.m.
    How to Differentiate an Integer Modulo n.
    Anthony Shaheen*, California State University Los Angeles
    Caleb Emmons, Pacific University
    Mike Krebs, California State University Los Angeles
    (1049-00-12)
  • 4:45 p.m.
    The Kauffman Polynomials of Pretzel Knots and Rational Knots.
    Jianyuan Kathy Zhong*, California State University Sacramento
    Bin Lu, California State University Sacramento
    (1049-57-153)
  • 5:00 p.m.
    A sufficient condition for intrinsic knotting of bipartite graphs.
    Sophy Huck, California State University, Chico
    Alexandra Appel, California State University, Chico
    Miguel-Angel Manrique, University of South California
    Thomas W Mattman*, Califorina State University, Chico
    (1049-57-63)
  • 5:15 p.m.
    Exponential Attractors for Reversible Cubic Autocatalytic Reaction-Diffusion Systems.
    Yuncheng You*, University of South Florida
    (1049-35-10)
  • 5:30 p.m.
    A-Harmonic Equations for Differential Forms.
    Shusen Ding*, Seattle University
    (1049-35-13)
  • 5:45 p.m.
    On the Leitmann equivalent problem approach.
    Florian Wagener*, Universiteit van Amsterdam, The Netherlands
    (1049-49-06)

Sunday April 26, 2009

• Sunday April 26, 2009, 7:30 a.m.-12:00 p.m.
  Meeting Registration
  Third Floor Lobby, Thornton Hall
• Sunday April 26, 2009, 7:30 a.m.-12:00 p.m.
  Exhibit and Book Sale
  Room 429, Thornton Hall
• Sunday April 26, 2009, 8:00 a.m.-10:50 a.m.
  Special Session on Algebra and Number Theory with Polyhedra, III
  Room 108, Hensill Hall
  Organizers:
  Matthias Beck, San Francisco State University beck@math.sfsu.edu
  Christian Haase, Freie Universität Berlin Christian.Haase@math.fu-berlin.de
  

  • 8:00 a.m.
    Points of small height missing a union of varieties.
    Lenny Fukshansky*, Claremont McKenna College
    (1049-11-95)
  • 8:30 a.m.
    52 years of the Hirsch conjecture.
    Francisco Santos*, Universidad de Cantabria
    (1049-52-209)
  • 9:00 a.m.
    Subgraph Isomorphism through Polynomial Ideals and their relaxations.
    Jesus A De Loera*, Dept. of Mathematics, University of California, Davis
    (1049-52-202)
  • 9:30 a.m.
    Combinatorial bounds on nef cones.
    Diane Maclagan*, University of Warwick
    (1049-14-81)
  • 10:00 a.m.
    Theta bodies for Polynomial Ideals.
    Rekha Thomas*, University of Washington
    Joao Gouveia, University of Washington
    Pablo Parrilo, MIT
    (1049-52-44)
  • 10:30 a.m.
    Searching for Solution Curves of Polynomial Systems.
    Jan Verschelde*, University of Illinois at Chicago
    (1049-52-164)
• Sunday April 26, 2009, 8:00 a.m.-10:50 a.m.
  Special Session on Nonlinear Partial Differential Equations, III
  Room 432, Thornton Hall
  Organizers:
  Igor Kukavica, University of Southern California kukavica@usc.edu
  Amjad Tuffaha, University of Southern California tuffaha@usc.edu
  Mohammed Ziane, University of Southern California ziane@usc.edu
  

  • 8:00 a.m.
    Questions on steady state Navier-Stoke equations.
    Maria Elena Schonbek*, UCSC
    Clayton BJorland, bjorland@math.utexas.edu
    (1049-35-171)
  • 8:30 a.m.
    Attractor and inertial-manifold results for the 3-D spectrally-hyperviscous Navier-Stokes equations.
    Joel Avrin*, University of North Carolina at Charlotte
    (1049-76-124)
  • 9:00 a.m.
    Localization of vortex-stretching in the 3D NSE.
    Zoran Grujic*, University of Virginia
    (1049-35-73)
  • 9:30 a.m.
    Global Wellposedness for the 2D Boussinesq Equations with Fractional Dissipation.
    Ning Ju*, Oklahoma State University
    (1049-35-173)
  • 10:00 a.m.
    Remarks on the boundary layers for the Navier-Stokes equations in bounded domains.
    Gung-Min Gie, Indiana University
    Makram Hamouda*, Indiana University
    Roger Temam, Indiana University
    (1049-76-182)
  • 10:30 a.m.
    New Well-Posedness Results for the Equations of Stochastic Fluid Dynamics with Multiplicative Noise.
    Nathan E Glatt-Holtz*, Indiana University
    (1049-35-196)
• Sunday April 26, 2009, 8:00 a.m.-10:50 a.m.
  Special Session on Banach Algebras, Topological Algebras, and Abstract Harmonic Analysis, III
  Room 425, Thornton Hall
  Organizers:
  Thomas V. Tonev, University of Montana-Missoula tonevtv@mso.umt.edu
  Fereidoun Ghahramani, University of Manitoba fereidou@cc.umanitoba.ca
  

  • 8:00 a.m.
    Isometries between the groups of invertible elements in Banach algebras.
    Osamu Hatori*, Department of Mathematics, Faculty of Sciences, Niigata University
    (1049-46-102)
  • 8:30 a.m.
    Peripherally multiplicative surjections between uniform algebras.
    Miura Takeshi*, Yamagata University
    (1049-46-206)
  • 9:00 a.m.
    Norm Conditions for Uniform Algebra Isomorphisms.
    Aaron Luttman, Clarkson University
    Scott Lambert*, Colby College
    (1049-46-197)
  • 9:30 a.m.
    Amenability properties of centres of group algebras.
    A. Azimifard, Fields Institute
    E. Samei, University of Saskatchewan
    N. Spronk*, University of Waterloo
    (1049-46-129)
  • 10:00 a.m.
    Contraction subgroups of locally compact groups.
    George Alver Willis*, University of Newcastle
    (1049-46-141)
  • 10:30 a.m.
    Projectivity of modules over Segal algebras.
    Brian Forrest, University of Waterloo, Canada
    Hun Hee Lee, Chungbuk National University, Korea
    Ebrahim Samei*, University of Saskatchewan, Canada
    (1049-43-80)
• Sunday April 26, 2009, 8:00 a.m.-10:40 a.m.
  Special Session on Concentration Inequalities, III
  Room 335, Thornton Hall
  Organizers:
  Sourav Chatterjee, University of California Berkeley sourav@stat.berkeley.edu
  Roman Vershynin, University of California Davis vershynin@math.ucdavis.edu
  

  • 8:00 a.m.
    Concentration of functionals of random matrices.
    Mark Meckes*, Case Western Reserve University
    (1049-60-186)
  • 9:00 a.m.
    Small ball probability estimates, $\psi_2$-behavior and the hyperplane conjecture.
    Nikos Dafnis, Department of Mathematics, University of Athens
    Grigorios Paouris*, Texas A & M University
    (1049-52-88)
  • 10:00 a.m.
    {\bf Bounding relative entropy between measures on product spaces\newline by the relative entropy between local specifications}.
    Katalin Marton*, Alfréd Rényi Institute of Mathematics, Budapest
    (1049-60-33)
• Sunday April 26, 2009, 8:00 a.m.-10:50 a.m.
  Special Session on Geometry and Topology of Orbifolds, III
  Room 210, Thornton Hall
  Organizers:
  Elizabeth Stanhope, Lewis & Clark University stanhope@lclark.edu
  Joseph E. Borzellino, California State University San Luis Obispo jborzell@calpoly.edu
  

  • 8:00 a.m.
    Orbifolds and blowing up.
    Emily B. Dryden*, Bucknell University
    (1049-58-189)
  • 8:30 a.m.
    Higher Index Theorems For Orbifolds.
    Markus J Pflaum*, University of Colorado at Boulder
    Hessel Posthuma, Korteweg-de Vries Institute, Universiteit van Amsterdam, The Netherlands
    Xiang Tang, Washington University, St. Louis
    (1049-58-59)
  • 9:00 a.m.
    Cobordisms of Orbifolds.
    Andres Angel*, Hausdorff Center for Mathematics
    (1049-55-66)
  • 9:30 a.m.
    Diameters of spherical $3$-orbifolds.
    William D. Dunbar*, Bard College at Simon's Rock
    Sarah J. Greenwald, Appalachian State University
    Jill McGowan, Howard University
    Catherine Searle, Universidad Nacional Autónoma de México
    (1049-53-55)
  • 10:00 a.m.
    On Volumes of Hyperbolic 4-Orbifolds.
    Ilesanmi Adeboye*, University of California, Santa Barbara
    (1049-57-64)
  • 10:30 a.m.
    What is an orbifold graph, and what do they sound like?
    Karsten Gimre, Pacific University
    Indra Shottland, New College of Florida
    Elizabeth Stanhope*, Lewis & Clark College
    (1049-05-136)
• Sunday April 26, 2009, 8:00 a.m.-10:50 a.m.
  Special Session on Matroids in Algebra and Geometry, III
  Room 113, Hensill Hall
  Organizers:
  Federico Ardila, San Francisco State University federico@math.sfsu.edu
  Lauren Williams, Harvard University lauren@math.harvard.edu
  

  • 8:00 a.m.
    Discussion
  • 9:00 a.m.
    Quasisymmetric functions and decomposability of matroid polytopes.
    Kurt W. Luoto*, University of Washington, Seattle, WA
    (1049-05-49)
  • 9:30 a.m.
    Oriented Matroids and the Geometry of Visibility.
    R Basri, Weizmann Institute
    P Felzenszwalb, University of Chicago
    R Girshick, University of Chicago
    D Jacobs, University of Maryland
    C Klivans*, University of Chicago
    (1049-05-151)
  • 10:30 a.m.
    Tensors, Products, and Tutte Polynomials.
    Andrew Berget*, University of Minnesota
    (1049-05-93)
• Sunday April 26, 2009, 8:00 a.m.-10:40 a.m.
  Special Session on Aspects of Differential Geometry, III
  Room 325, Thornton Hall
  Organizers:
  David Bao, San Francisco State University bao@math.sfsu.edu
  Lei Ni, University of California San Diego lni.math.ucsd@gmail.com
  

  • 8:00 a.m.
    The Structure of Complete Manifolds with Positive Spectrum.
    Ovidiu Munteanu*, Columbia University, New York
    (1049-53-40)
  • 9:00 a.m.
    Geometric Meanings of Curvatures in Finsler Geometry.
    Zhongmin Shen*, Indiana University Purdue University Indianapolis
    (1049-53-69)
  • 10:00 a.m.
    Mean curvature flows of Lagrangian graphs and isotopy problems.
    Mu-Tao Wang*, Department of Mathematics, Columbia University
    (1049-53-56)
• Sunday April 26, 2009, 8:30 a.m.-10:50 a.m.
  Special Session on Applications of Knot Theory to the Entanglement of Biopolymers, III
  Room 210, Science Building
  Organizers:
  Javier Arsuaga, San Francisco State University jarsuaga@sfsu.edu
  Kenneth Millett, University of California Santa Barbara millett@math.ucsb.edu
  Mariel Vazquez, San Francisco State University mariel@math.sfsu.edu
  

  • 8:30 a.m.
    Self-avoiding knots.
    Alexander Y Grosberg*, Department of Physics and Center for Soft Matter Research, New York University
    (1049-54-83)
  • 9:30 a.m.
    The Ropelengths of Knots Are Almost Linear in Terms of Their Crossing Numbers: Part 1.
    Yuanan Diao*, Department of Mathematics and Statistics, UNC Charlotte
    Ernst Claus, Department of Mathematics, Western Kentucky University
    Attila Por, Department of Mathematics, Western Kentucky University
    Uta Ziegler, Department of Computer Science, Western Kentucky University
    (1049-57-76)
  • 10:00 a.m.
    The Ropelengths of Knots Are Almost Linear in Terms of Their Crossing Numbers: Part 2.
    Yuanan Diao, Department of Mathematics and Statistics, UNC Charlotte
    Ernst Claus*, Department of Mathematics, Western Kentucky University
    Attila Por, Department of Mathematics, Western Kentucky University
    Uta Ziegler, Department of Computer Science, Western Kentucky University
    (1049-57-77)
  • 10:30 a.m.
    A chain of linked ring polymers in solution via Brownian dynamics.
    Tetsuo Deguchi*, Department of Physics, Graduate School of Humanities and Sciences, Ochanomizu University
    Naoko Kanaeda, Department of Physics, Graduate School of Humanities and Sciences, Ochanomizu University
    (1049-82-82)
• Sunday April 26, 2009, 8:30 a.m.-10:50 a.m.
  Special Session on Recent Progress in Geometric Group Theory, III
  Room 327, Thornton Hall
  Organizers:
  Seonhee Lim, Cornell University slim@math.cornell.edu)
  Anne Thomas, Cornell University athomas@math.cornell.edu
  

  • 8:30 a.m.
    Dehn functions of linear groups.
    Kevin Wortman*, University of Utah
    (1049-20-201)
  • 9:00 a.m.
    Discussion
  • 9:30 a.m.
    Sequences of Unfaithful Representations into PSL(2,C).
    Ian Biringer*, University of Chicago
    Juan Souto, University of Michigan
    (1049-51-180)
  • 10:00 a.m.
    Discussion
  • 10:30 a.m.
    Discussion
• Sunday April 26, 2009, 8:30 a.m.-10:50 a.m.
  Special Session on Advances in the Theory of Integer Linear Optimization and its Extensions, III
  Room 206, Hensill Hall
  Organizers:
  Matthias Koeppe, University of California Davis mkoeppe@math.ucdavis.edu
  Peter Malkin, University of California Davis malkin@math.ucdavis.edu
  

  • 8:30 a.m.
    Parametric integer programming in fixed dimension.
    Friedrich Eisenbrand*, EPFL
    Gennady Shmonin, EPFL
    (1049-94-26)
  • 9:30 a.m.
    Computing pure Nash equilibria in games with piecewise linear utilities.
    Christopher Thomas Ryan*, Sauder School of Business, University of British Columbia
    Matthias Koeppe, University of California, Davis, Department of Mathematics
    Albert Xin Jiang, University of British Columbia, Department of Computer Science
    Kevin Leyton-Brown, University of British Columbia, Department of Computer Science
    Maurice Queyranne, Sauder School of Business, British Columbia
    (1049-91-57)
  • 10:00 a.m.
    Complexity and equilibria in congestion games.
    Carol Meyers*, Lawrence Livermore National Laboratory
    Andreas S. Schulz, Massachusetts Institute of Technology
    (1049-90-50)
  • 10:30 a.m.
    An Integer Set Library for Program Analysis.
    Sven Verdoolaege*, Katholieke Universiteit Leuven, Department of Computer Science
    (1049-52-46)
• Sunday April 26, 2009, 9:00 a.m.-10:40 a.m.
  Special Session on Lie group actions, Teichmüller Flows and Number Theory, III
  Room 329, Thornton Hall
  Organizers:
  Jayadev Athreya, Yale University jayadev.athreya@yale.edu
  Yitwah Cheung, San Francisco State University cheung@math.sfsu.edu
  Anton Zorich, Rennes University Anton.Zorich@univ-rennes1.fr
  

  • 9:00 a.m.
    Completed cycles and singularities of stable maps.
    Dimitri Zvonkine*, CNRS, visiting Stanford University
    (1049-14-177)
  • 10:00 a.m.
    Badly approximable systems of affine forms, fractals, and Schmidt games.
    Manfred Einsiedler, The Ohio State University
    Jimmy Tseng*, The Ohio State University
    (1049-11-163)
• Sunday April 26, 2009, 9:00 a.m.-10:50 a.m.
  Special Session on Nonlinear Dispersive Equations, III
  Room 409, Thornton Hall
  Organizers:
  Sebastian Herr, University of California Berkeley herr@math.berkeley.edu
  Jeremy L. Marzuola, Columbia University jm3058@columbia.edu
  

  • 9:00 a.m.
    Strichartz estimates for the Schrödinger equation in exterior domains.
    Matthew D Blair*, University of New Mexico
    (1049-35-159)
  • 9:30 a.m.
    Local Energy Decay on Schwarzschild and Kerr black hole backgrounds.
    Mihai Horia Tohaneanu*, University of California at Berkeley
    (1049-35-137)
  • 10:00 a.m.
    Exponential decay of dispersion managed solitons.
    M. Burak Erdogan*, University of Illinois Urbana Champaign
    (1049-35-114)
  • 10:30 a.m.
    An operator-valued Wiener inversion theorem leading to Schrödinger dispersive estimates.
    Marius Beceanu, University of Chicago
    Michael Goldberg*, Johns Hopkins University
    (1049-43-131)
• Sunday April 26, 2009, 11:10 a.m.-12:00 p.m.
  Invited Address
  Actions of automorphism groups of free groups.
  Room 201, Science Building
  Karen Vogtmann*, Cornell University
  (1049-20-03)
• Sunday April 26, 2009, 2:00 p.m.-2:50 p.m.
  Invited Address
  Bounded generation of arithmetic groups and some recent applications.
  Room 201, Science Building
  Yehuda Shalom*, University of California Los Angeles
  (1049-00-01)
• Sunday April 26, 2009, 3:00 p.m.-4:50 p.m.
  Special Session on Applications of Knot Theory to the Entanglement of Biopolymers, IV
  Room 210, Science Building
  Organizers:
  Javier Arsuaga, San Francisco State University jarsuaga@sfsu.edu
  Kenneth Millett, University of California Santa Barbara millett@math.ucsb.edu
  Mariel Vazquez, San Francisco State University mariel@math.sfsu.edu
  

  • 3:00 p.m.
    '4-string tangle analysis of DNA-protein complexes'.
    soojeong kim*, university of iowa
    isabel darcy, university of iowa
    (1049-57-208)
  • 3:30 p.m.
    Exponential Growth of the Number of $n$-edge Linked Clusters in $\mathbb{Z}^3$ and the Consequences in Entanglement Percolation.
    Mahshid Atapour*, Department of Mathematics and Statistics, York University
    (1049-05-187)
  • 4:00 p.m.
    Upper Bound for the Ropelength of a Trefoil Knot.
    Teresita Ramirez-Rosas*, University of California, Santa Barbara
    (1049-54-192)
  • 4:30 p.m.
    A fast ergodic algorithm for generating ensembles of equilateral random polygons.
    R Varela*, Department of Computer Science, San Francisco State University, 1600 Holloway Ave, San Francisco, CA 94132, USA
    K Hinson, Department of Mathematics and Statistics, University of North Carolina at Charlotte Charlotte, NC 28223, USA
    J Arsuaga, Department of Mathematics, San Francisco State University, 1600 Holloway Ave, San Francisco, CA 94132, USA
    Y Diao, Department of Mathematics and Statistics, University of North Carolina at Charlotte Charlotte, NC 28223, USA
    (1049-54-125)
• Sunday April 26, 2009, 3:00 p.m.-5:50 p.m.
  Special Session on Algebra and Number Theory with Polyhedra, IV
  Room 108, Hensill Hall
  Organizers:
  Matthias Beck, San Francisco State University beck@math.sfsu.edu
  Christian Haase, Freie Universität Berlin Christian.Haase@math.fu-berlin.de
  

  • 3:00 p.m.
    Toric specializations of the Rees algebra of Koszul cycles.
    H. Schenck*, University of Illinois Urbana-Champaign
    M Stillman, Math Dept, Cornell Univ.
    (1049-14-146)
  • 3:30 p.m.
    Hom, tenzor, Ker, and Coker constructions for polytopes.
    Joseph Gubeladze*, San Francisco State University
    (1049-52-108)
  • 4:00 p.m.
    Toric ideals of nested configurations.
    Hidefumi Ohsugi*, Rikkyo University (JST CREST)
    (1049-13-147)
  • 4:30 p.m.
    The caterpillar polytope and its relatives.
    Milena Hering*, University of Utah/MSRI
    Benjamin Howard, University of Michigan
    (1049-14-166)
  • 5:00 p.m.
    Frobenius splittings for lattice polytopes.
    Sam Payne*, Stanford Universty and Clay Mathematics Institute
    (1049-05-165)
  • 5:30 p.m.
    On the Lefschetz Property for Vernonese Rings.
    Volkmar Welker*, Philipps-Universität Marburg
    Martina Kubitzke, Phlipps-Universität Marburg
    (1049-05-142)
• Sunday April 26, 2009, 3:00 p.m.-4:40 p.m.
  Special Session on Lie group actions, Teichmüller Flows and Number Theory, IV
  Room 329, Thornton Hall
  Organizers:
  Jayadev Athreya, Yale University jayadev.athreya@yale.edu
  Yitwah Cheung, San Francisco State University cheung@math.sfsu.edu
  Anton Zorich, Rennes University Anton.Zorich@univ-rennes1.fr
  

  • 3:00 p.m.
    Degeneration of flat structures.
    Moon Duchin*, University of Michigan
    Christopher Leininger, University of Illinois
    Kasra Rafi, University of Oklahoma
    (1049-51-198)
  • 4:00 p.m.
    Real REL is a flow.
    Barak Weiss*, Ben Gurion University, Be'er Sheva, Israel.
    (1049-37-70)
• Sunday April 26, 2009, 3:00 p.m.-5:50 p.m.
  Special Session on Nonlinear Partial Differential Equations, IV
  Room 432, Thornton Hall
  Organizers:
  Igor Kukavica, University of Southern California kukavica@usc.edu
  Amjad Tuffaha, University of Southern California tuffaha@usc.edu
  Mohammed Ziane, University of Southern California ziane@usc.edu
  

  • 3:00 p.m.
    A Priori Bounds for the Vorticity of Axis Symmetric Solutions to the Navier-Stokes Equations.
    Qi S. Zhang*, Math. Dept. UC Riverside
    Jenn Burke, Math. Dept. UC Riverside
    (1049-35-167)
  • 3:30 p.m.
    On the global attractor for the 3D Navier-Stokes equations.
    Alexey Cheskidov*, University of Illinois at Chicago
    (1049-35-210)
  • 4:00 p.m.
    Stochastic Lagrangian Particle systems for the Navier-Stokes and Burgers equations.
    Peter Constantin, University of Chicago
    Gautam Iyer*, Stanford University
    Jonathan C. Mattingly, Duke University
    Alexei Novikov, Pennsylvania State University
    (1049-76-45)
  • 4:30 p.m.
    The 2D Navier-Stokes-Voight and 2D damped Navier-Stokes equations for image inpainting.
    Moe Ebrahimi, University of California, San Diego
    Michael Holst, University of California, San Diego
    Evelyn M. Lunasin*, University of California San Diego
    Edriss S. Titi, University of California Irvine and Weizmann Institute of Science, Israel
    (1049-76-122)
  • 5:00 p.m.
    Inertial manifolds for a class of Burgers' and nonlinear Fokker-Planck equations.
    Jesenko Vukadinovic*, College of Staten Island and the Graduate Center of CUNY
    (1049-35-194)
  • 5:30 p.m.
    Elliptic and parabolic equations with partially BMO coefficients in Sobolev spaces.
    Doyoon Kim*, University of Southern California
    (1049-35-175)
• Sunday April 26, 2009, 3:00 p.m.-4:50 p.m.
  Special Session on Banach Algebras, Topological Algebras, and Abstract Harmonic Analysis, IV
  Room 425, Thornton Hall
  Organizers:
  Thomas V. Tonev, University of Montana-Missoula tonevtv@mso.umt.edu
  Fereidoun Ghahramani, University of Manitoba fereidou@cc.umanitoba.ca
  

  • 3:00 p.m.
    Good Weights and Good-enough Weights on $\mathbb{R}^{+}$.
    Sandy Grabiner*, Pomona College
    (1049-46-89)
  • 3:30 p.m.
    On the maximal ideals of normed and m-convex algebras.
    Hugo Arizmendi Peimbert*, Universidad Nacional Autonoma de Mexico
    (1049-46-110)
  • 4:00 p.m.
    On some Q-like properties in Topological Algebras.
    Lourdes Palacios*, Universidad Autonoma Metropolitana- Iztapalapa
    (1049-46-133)
  • 4:30 p.m.
    Extremal problems for analytic discs and analytic balls, and polynomial hulls.
    Marshall A. Whittlesey*, California State University San Marcos
    (1049-32-205)
• Sunday April 26, 2009, 3:00 p.m.-4:20 p.m.
  Special Session on Recent Progress in Geometric Group Theory, IV
  Room 327, Thornton Hall
  Organizers:
  Seonhee Lim, Cornell University slim@math.cornell.edu)
  Anne Thomas, Cornell University athomas@math.cornell.edu
  

  • 3:00 p.m.
    Braids, posets and orthoschemes.
    Jon McCammond*, UC Santa Barbara
    (1049-20-106)
  • 4:00 p.m.
    Area distortion in groups.
    Hanna Bennett*, University of Chicago
    (1049-20-199)
• Sunday April 26, 2009, 3:00 p.m.-5:40 p.m.
  Special Session on Concentration Inequalities, IV
  Room 335, Thornton Hall
  Organizers:
  Sourav Chatterjee, University of California Berkeley sourav@stat.berkeley.edu
  Roman Vershynin, University of California Davis vershynin@math.ucdavis.edu
  

  • 3:00 p.m.
    Concentration of measure, laws of large numbers and mixing for Markov chains.
    Malwina J Luczak*, London School of Economics
    (1049-60-130)
  • 4:00 p.m.
    On the Limiting Shape of Random Young Tableaux for Markovian Words.
    Christian Houdre*, Georgia Institute of Technology
    Trevis Litherland, Georgia Institute of Technology
    (1049-60-170)
  • 5:00 p.m.
    An Elementary Technique to Prove some Basic Inequalities in Convex Geometry.
    Daniel N Dadush*, Georgia Institute of Technology
    Vempala S Santosh, Georgia Institute of Technology
    (1049-52-08)
• Sunday April 26, 2009, 3:00 p.m.-5:20 p.m.
  Special Session on Advances in the Theory of Integer Linear Optimization and its Extensions, IV
  Room 206, Hensill Hall
  Organizers:
  Matthias Koeppe, University of California Davis mkoeppe@math.ucdavis.edu
  Peter Malkin, University of California Davis malkin@math.ucdavis.edu
  

  • 3:00 p.m.
    Intersection cuts from maximal lattice-free convex sets and lift-and-project cuts from multiple-term disjunctions.
    Egon Balas*, Carnegie Mellon University
    (1049-90-139)
  • 4:00 p.m.
    On Large Gaps in Small Hierarchical Models.
    Edwin O'Shea*, Centro de Investigacion y de Estudios Avanzados del IPN
    (1049-90-39)
  • 4:30 p.m.
    On connectivity of fibers with positive marginals in multiple logistic regression.
    Hisayuki Hara, University of Tokyo
    Akimichi Takemura, University of Tokyo
    Ruriko Yoshida*, University of Kentucky
    (1049-62-34)
  • 5:00 p.m.
    Commuting birth-and-death processes.
    Steven N Evans, UC Berkeley
    Bernd Sturmfels*, UC Berkeley
    Caroline Uhler, UC Berkeley
    (1049-60-19)
• Sunday April 26, 2009, 3:00 p.m.-5:40 p.m.
  Special Session on Matroids in Algebra and Geometry, IV
  Room 113, Hensill Hall
  Organizers:
  Federico Ardila, San Francisco State University federico@math.sfsu.edu
  Lauren Williams, Harvard University lauren@math.harvard.edu
  

  • 3:00 p.m.
    The Hopf monoid of generalized permutahedra.
    Marcelo Aguiar*, Texas A&M University
    Federico Ardila, San Francisco State University
    (1049-05-92)
  • 4:00 p.m.
    Triangulation of root polytopes and reduced forms.
    Karola Meszaros*, MIT
    (1049-05-99)
  • 4:30 p.m.
    Positroids and Schubert Matroids.
    Suho Oh*, Massachusetts Institute of Technology
    (1049-05-126)
  • 5:00 p.m.
    Polypositroids.
    Alexander Postnikov*, MIT
    Thomas Lam, Harvard University
    (1049-05-172)
• Sunday April 26, 2009, 3:00 p.m.-
  Special Session on Aspects of Differential Geometry, IV
  Room 325, Thornton Hall
  Organizers:
  David Bao, San Francisco State University bao@math.sfsu.edu
  Lei Ni, University of California San Diego lni.math.ucsd@gmail.com
  

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