AMS Sectional Meeting Program by Day

Current as of Sunday, April 21, 2013 00:20:08

---

Program  ·  Deadlines  ·  Registration/Housing/Etc.
Special Event or Lecture  ·  Inquiries: meet@ams.org

---

Spring Western Sectional Meeting
University of Colorado Boulder, Boulder, CO
April 13-14, 2013 (Saturday - Sunday)
Meeting #1089

Associate secretaries:

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

---

Saturday April 13, 2013

• Saturday April 13, 2013, 7:30 a.m.-4:00 p.m.
  Book Sale and Exhibit
  Lobby 2, Eaton Humanities
• Saturday April 13, 2013, 7:30 a.m.-4:00 p.m.
  Meeting Registration
  Lobby 1, Eaton Humanities
• Saturday April 13, 2013, 8:00 a.m.-10:40 a.m.
  Special Session on Algebraic Geometry, I
  Room 259, Hellems Arts and Sciences
  Organizers:
  Sebastian Casalaina-Martin, University of Colorado casa@math.colorado.edu
  Renzo Cavalieri, Colorado State University
  Brendan Hassett, Rice University
  Jonathan Wise, University of Colorado
  

  • 8:00 a.m.
    Stability of line bundles on reducible surfaces.
    Atoshi Chowdhury*, UC Berkeley
    (1089-14-382)
  • 9:00 a.m.
    Equivariant Rational Maps and Unirationality.
    Alexander R Duncan*, University of Michigan, Ann Arbor
    (1089-14-297)
  • 10:00 a.m.
    Big cycles and volume functions.
    Brian Lehmann*, Rice University
    (1089-14-76)
• Saturday April 13, 2013, 8:00 a.m.-10:50 a.m.
  Special Session on Analysis of Dynamics of the Incompressible Fluids, I
  Room 245, Eaton Humanities
  Organizers:
  Mimi Dai, University of Colorado, Boulder mimi.dai@colorado.edu
  Congming Li, University of Colorado, Boulder
  

  • 8:00 a.m.
    Active scalar equations and the second iterate.
    Susan Friedlander, University of Southern California
    Walter Rusin*, University of Southern California
    (1089-35-245)
  • 8:30 a.m.
    Rogue Waves in the Ocean and in Fiber Optic Cables.
    Jerry L. Bona*, University of Illinois at Chicago
    (1089-76-321)
  • 9:00 a.m.
    A PDE Model for Turbulent Energy Cascade.
    Susan Friedlander*, University of Southern California
    (1089-76-169)
  • 9:30 a.m.
    Finite-time splash and splat singularities for the 3-D free-surface Euler equations.
    Steve Shkoller*, UC Davis
    (1089-35-376)
  • 10:00 a.m.
    The 2D Boussinesq equations with partial or fractional dissipation.
    Jiahong Wu*, Oklahoma State University
    (1089-35-83)
  • 10:30 a.m.
    Well-posedness for regularized nonlinear dispersive wave equations.
    Jerry L Bona, UIC
    Hongqiu Chen*, University of Memphis
    (1089-35-390)
• Saturday April 13, 2013, 8:00 a.m.-10:50 a.m.
  Special Session on Arithmetic Statistics and Big Monodromy, I
  Room 263, Hellems Arts and Sciences
  Organizers:
  Jeff Achter, Colorado State University achter@math.colostate.edu
  Chris Hall, University of Wyoming
  

  • 8:00 a.m.
    Monodromy groups, connected components, and averages.
    Jordan S. Ellenberg*, University of WIsconsin - Madison
    (1089-11-403)
  • 8:30 a.m.
    A symmetric version of Chabauty's method on families of hyperelliptic curves.
    Jennifer Park*, Massachusetts Institute of Technology
    (1089-11-16)
  • 9:00 a.m.
    Ranks of Elliptic Curves over Quadratic Extensions.
    Wei Ho*, Columbia University / Princeton University
    (1089-11-241)
  • 9:30 a.m.
    Lower Bounds for the Cohomology of Bianchi Groups.
    Seyfi Turkelli*, Western Illinois University
    (1089-11-127)
  • 10:00 a.m.
    Galois Representations Associated to a Metabelian Cover of the $\ell^n$-torsion points of Elliptic Curves.
    Rachel Davis*, University of Wisconsin-Madison
    (1089-11-317)
  • 10:30 a.m.
    Non-abelian Cohen-Lenstra heuristics- moments version.
    Nigel Boston*, University of Wisconsin
    (1089-11-286)
• Saturday April 13, 2013, 8:00 a.m.-10:50 a.m.
  Special Session on Cluster Algebras and Related Combinatorics, I
  Room 191, Hellems Arts and Sciences
  Organizers:
  Gregg Musiker, University of Minnesota
  Kyungyong Lee, Wayne State University klee@math.wayne.edu
  Li Li, Oakland University
  

  • 8:00 a.m.
    Positivity for cluster algebras.
    Kyungyong Lee, Wayne State University
    Ralf Schiffler*, University of Connecticut
    (1089-13-115)
  • 8:30 a.m.
    On surface cluster algebras: Snake and band graph calculus.
    Ilke Canakci*, University of Connecticut
    Ralf Schiffler, Unievristy of Connecticut
    (1089-13-208)
  • 9:00 a.m.
    Positivity and tameness in rank 2 cluster algebras.
    Andrei Zelevinsky*, Northeastern University
    (1089-13-184)
  • 10:00 a.m.
    Rank 2 Non-commutative Laurent Phenomenon and Positivity.
    Dylan Rupel*, Northeastern University
    (1089-05-88)
  • 10:30 a.m.
    Positive Configurations in Affine Buildings.
    Ian T Le*, Northwestern University
    (1089-05-299)
• Saturday April 13, 2013, 8:00 a.m.-10:50 a.m.
  Special Session on Combinatorial Avenues in Representation Theory, I
  Room 135, Eaton Humanities
  Organizers:
  Richard Green, University of Colorado Boulder
  Anne Shepler, University of North Texas ashepler@unt.edu
  Nathaniel Thiem, University of Colorado Boulder
  

  • 8:00 a.m.
    Generating functions for real character degree sums of finite general linear and unitary groups.
    Jason Fulman, University of Southern California
    C. Ryan Vinroot*, College of William and Mary
    (1089-20-179)
  • 8:30 a.m.
    Schubert polynomials and k-Schur functions.
    Carolina Benedetti*, York University
    Nantel Bergeron, York University
    (1089-05-161)
  • 9:00 a.m.
    Supercharacters and exponential sums.
    Gizem Karaali*, Pomona College
    (1089-20-167)
  • 9:30 a.m.
    Supercharacters on abelian groups.
    Stephan Ramon Garcia*, Pomona College
    (1089-11-166)
  • 10:00 a.m.
    Ideals and traces in Deligne's category $Rep(S_{t})$.
    Jonathan Comes, University of Oregon
    Jonathan Kujawa*, University of Oklahoma
    (1089-05-37)
  • 10:30 a.m.
    Combinatorics of the unipotent characters of a finite Coxeter system.
    Eric Marberg*, Massachusetts Institute of Technology
    (1089-20-170)
• Saturday April 13, 2013, 8:00 a.m.-10:50 a.m.
  Special Session on Dynamical Systems: Thermodynamic Formalism and Connections with Geometry, I
  Room 229, Hellems Arts and Sciences
  Organizers:
  Keith Burns, Northwestern University
  Dan Thompson, The Ohio State University thompson@math.osu.edu
  

  • 8:00 a.m.
    Dynamical coherence and intrinsic ergodicity for partially hyperbolic diffeomorphisms isotopic to Anosov.
    Todd Fisher*, Brigham Young University
    Rafael Potrie, IMERL, Facultad de Ingenieria, Montevideo, Uruguay
    Martin Sambarino, Universidad de la Republica, Montevideo, Uruguay
    (1089-37-56)
  • 8:30 a.m.
    Recurrent orbits and nontrivial paths in particular fractal billiard tables.
    Robert G Niemeyer*, University of New Mexico, Albuquerque
    Michel L Lapidus, University of California, Riverside
    Joe P. Chen, Cornell University
    Robyn L Miller, Cornell University
    (1089-37-113)
  • 9:00 a.m.
    On rotation entropy.
    Christian Wolf*, The City College of New York
    Tamara Kucherenko, The City College of New York
    (1089-37-130)
  • 9:30 a.m.
    The geometry of generalized rotation sets.
    Tamara Kucherenko*, City College of New York
    Christian Wolf, City College of New York
    (1089-37-331)
  • 10:00 a.m.
    Shifts of finite type with nearly full entropy.
    Ronnie Lee Pavlov*, University of Denver
    (1089-37-216)
  • 10:30 a.m.
    Mixing Properties of the Weil-Petersson geodesic flow.
    Howard Masur*, University of Chicago
    Keith Burns, Northwestern University
    Carlos Matheus Santos, College de France
    Amie Wilkinson, University of Chicago
    (1089-37-128)
• Saturday April 13, 2013, 8:00 a.m.-10:20 a.m.
  Special Session on Dynamics and Arithmetic Geometry, I
  Room 104, Hellems Arts and Sciences
  Organizers:
  Su-ion Ih, University of Colorado at Boulder ih@math.colorado.edu
  Thomas J. Tucker, University of Rochester
  

  • 8:00 a.m.
    The filled Julia set of a Drinfeld module.
    Patrick Ingram*, Colorado State University
    (1089-11-315)
  • 8:30 a.m.
    Newton's Method in Global Fields.
    Adam D Towsley*, CUNY Graduate Center
    Xander Faber, University of Hawaii
    (1089-11-302)
  • 9:00 a.m.
    Heights in fields with splitting conditions.
    Paul Fili*, University of Rochester
    Zachary Miner, University of Texas at Austin
    Clayton Petsche, Oregon State University
    (1089-11-262)
  • 9:30 a.m.
    A refined conjecture on factoring iterates of polynomials over finite fields.
    Nigel Boston*, University of Wisconsin
    (1089-11-264)
  • 10:00 a.m.
    Arithmetic differential Galois theory and dynamics on projective space.
    Alexandru Buium*, University of New Mexico, Albuquerque
    Taylor Dupuy, University of New Mexico, Albuquerque
    (1089-11-77)
• Saturday April 13, 2013, 8:00 a.m.-10:40 a.m.
  Special Session on Foundations of Computational Mathematics, I
  Room 193, Hellems Arts and Sciences
  Organizers:
  Susan Margulies, Pennsylvania State University margulies@math.psu.edu
  Jesus De Loera, University of California, Davis
  

  • 8:00 a.m.
    An Approach to the Dodecahedral Conjecture Based on Bounds for Spherical Codes.
    Kurt M Anstreicher*, Department of Management Sciences, University of Iowa
    (1089-52-336)
  • 9:00 a.m.
    The infinite group problem and extreme inequalities for integer programming.
    Robert Hildebrand*, UC Davis
    Amitabh Basu, UC Davis
    Matthias Köppe, UC Davis
    Marco Molinaro, Carnegie Mellon University
    (1089-90-276)
  • 10:00 a.m.
    The A-Truncated K-Moment Problem.
    Jiawang Nie*, University of California, San Diego
    (1089-90-176)
• Saturday April 13, 2013, 8:00 a.m.-10:20 a.m.
  Special Session on Nonlinear Waves and Integrable Systems, I
  Room 125, Eaton Humanities
  Organizers:
  Christopher W. Curtis, University of Colorado, Boulder
  Anton Dzhamay, University of Northern Colorado
  Willy Hereman, Colorado School of Mines
  Barbara Prinari, University of Colorado, Colorado Springs bprinari@uccs.edu
  

  • 8:00 a.m.
    On the stability analysis of periodic sine-Gordon traveling waves.
    Peter D. Miller*, University of Michigan
    (1089-35-319)
  • 8:30 a.m.
    On the Maxwell-Bloch equations and the focusing nonlinear Schroedinger equation with non-zero boundary conditions and the Benjamin-Feir instability.
    Gino Biondini*, State University of New York at Buffalo
    Emily Fagerstrom, State University of New York at Buffalo
    Gregor Kovacic, Rensselaer Polytechnic Institute
    (1089-35-363)
  • 9:00 a.m.
    Stability of solutions for peakon equations.
    Stephane Lafortune*, College of Charleston
    Andrew N.W. Hone, University of Kent
    (1089-35-223)
  • 9:30 a.m.
    Numerical solution of the Novikov-Veselov equation by the ISM and transverse instability of plane-wave soliton solutions.
    Matti Lassas, University of Helsinki, Finland
    Jennifer L Mueller*, Colorado State University
    Samuli Siltanen, University of Helsinki, Finland
    Andreas Stahel, Bern University of Applied Sciences, Engineering and Information Technology
    Ryan Croke, Raytheon
    (1089-35-347)
  • 10:00 a.m.
    Exceptional Circles of Radial Potentials in Two-Dimensional Inverse Scattering.
    Michael E. Music, University of Kentucky
    Peter A. Perry*, University of Kentucky
    Samuli Siltanen, University of Helsinki
    (1089-35-196)
• Saturday April 13, 2013, 8:00 a.m.-10:40 a.m.
  Special Session on Set Theory and Boolean Algebras, I
  Room 177, Hellems Arts and Sciences
  Organizers:
  Natasha Dobrinen, University of Denver natasha.dobrinen@du.edu
  Don Monk, University of Colorado, Boulder
  

  • 8:00 a.m.
    Fragile Ultrafilters.
    Andreas R. Blass*, Mathematics Dept., University of Michigan
    (1089-03-360)
  • 9:00 a.m.
    Filter dynamical systems.
    Dana Bartosova*, University of Toronto, Canada
    (1089-03-327)
  • 10:00 a.m.
    A playful chain condition on topological spaces.
    Angelo Bella, Università degli Studi di Catania
    Santi Spadaro*, Silesian University in Opava
    (1089-54-172)
• Saturday April 13, 2013, 8:00 a.m.-10:40 a.m.
  Special Session on Singular Spaces in Geometry, Topology, and Algebra, I
  Room 145, Eaton Humanities
  Organizers:
  Greg Friedman, Texas Christian University greg.b.friedman@gmail.com
  Laurentiu Maxim, University of Wisconsin, Madison
  

  • 8:00 a.m.
    Hodge cohomology of stratified spaces.
    Pierre Albin*, University of Illinois at Urbana-Champaign
    Eric Leichtnam, Institut de Mathematiques de Jussieu
    Rafe Mazzeo, Stanford University
    Paolo Piazza, Sapienza Universita di Roma
    (1089-58-143)
  • 9:00 a.m.
    Geometry of orbit spaces of proper Lie groupoids.
    Markus J Pflaum*, University of Colorado Boulder
    Hessel Posthuma, University of Amsterdam, The Netherlands
    Xiang Tang, Washington University, St. Louis, MO
    (1089-58-28)
  • 10:00 a.m.
    High-Dimensional Topological Quantum Field Theory, Singularities of Maps, and Exotic Spheres.
    Markus Banagl*, Heidelberg University
    (1089-57-171)
• Saturday April 13, 2013, 8:00 a.m.-10:50 a.m.
  Special Session on Themes in Applied Mathematics: From Data Analysis through Fluid Flows and Biology to Topology, I
  Room 1B80, Eaton Humanities
  Organizers:
  Hanna Makaruk, Los Alamos National Laboratory
  Robert Owczarek, University of New Mexico, and Enfitek, Inc owczarek@hughes.net
  

  • 8:00 a.m.
    Logarithmic scaling of critical collapse of Nonlinear Schrodinger equation.
    Pavel M Lushnikov*, Department of Mathematics and Statistics, University of New Mexico
    Sergey A Dyachenko, Department of Mathematics and Statistics, University of New Mexico
    Natalia Vladimirova, Department of Mathematics and Statistics, University of New Mexico
    (1089-78-46)
  • 8:30 a.m.
    Phase transitions and collective oscillations in optical turbulence.
    Natalia Vladimirova*, University of New Mexico
    Gregory Falkovich, Weizmann Institute of Science
    Pearson Miller, Yale University
    (1089-78-230)
  • 9:00 a.m.
    Solitons in dipolar BEC with 1/r interatomic potential.
    Sergey A Dyachenko*, University of New Mexico
    Pavel M Lushnikov, University of New Mexico
    (1089-35-324)
  • 9:30 a.m.
    Vlasov-Poisson model and it\rqs reduction for laser-plasma 2D simulation.
    Denis Albertovich Silantyev*, University of New Mexico, Albuquerque, New Mexico 87131, USA
    Harvey Rose, New Mexico Consortium, Los Alamos, New Mexico 87544, USA
    Pavel Lushnikov, University of New Mexico, Albuquerque, New Mexico 87131, USA
    (1089-00-346)
  • 10:00 a.m.
    Mass-conserved volumetric lattice Boltzmann method for biological flows with or without willfully moving boundaries.
    Huidan Whitney Yu*, Department of Mechanical Engineering/Indiana University-Purdue University Indianapolis (IUPUI)
    (1089-76-66)
  • 10:30 a.m.
    Computational modeling of brain dynamics in traumatic scenarios -- a new universal Brain Injury Criterion.
    Igor Szczyrba*, University of Northern Colorado
    Martin Burtscher, Texas State University - San Marcos
    Rafal Szczyrba, Funiosoft, LLC
    (1089-35-180)
• Saturday April 13, 2013, 8:30 a.m.-10:50 a.m.
  Special Session on Algebras, Lattices and Varieties, I
  Room 255, Hellems Arts and Sciences
  Organizers:
  Keith A. Kearnes, University of Colorado, Boulder kearnes@euclid.colorado.edu
  Ágnes Szendrei, University of Colorado, Boulder
  

  • 8:30 a.m.
    Every Finite Lattice is Finitely Based.
    George F McNulty*, University of South Carolina
    (1089-08-396)
  • 9:00 a.m.
    The Undecidability of the Definability of Principal Subcongruences.
    Matthew D Moore*, The University of Colorado at Boulder
    (1089-08-388)
  • 9:30 a.m.
    Finitely decidable varieties admitting type 1 are residually finite.
    Ralph McKenzie, Vanderbilt University
    Matthew Smedberg*, Vanderbilt University
    (1089-08-27)
  • 10:00 a.m.
    A general Dedekind transposition principle and examples of isotopic algebras with non-isomorphic congruence lattices.
    William DeMeo*, University of South Carolina
    (1089-06-320)
  • 10:30 a.m.
    Finite lattices that force transitivity of G-Set representations.
    Steve Seif*, Mathematics Department, University of Louisville
    (1089-08-354)
• Saturday April 13, 2013, 8:30 a.m.-10:50 a.m.
  Special Session on Combinatorial and Computational Commutative Algebra and Algebraic Geometry, I
  Room 251, Hellems Arts and Sciences
  Organizers:
  Hirotachi Abo, University of Idaho
  Zach Teitler, Boise State University
  Alexander Woo, University of Idaho awoo@uidaho.edu
  

  • 8:30 a.m.
    Regularity of squarefree monomial ideals and vertex decomposable complexes.
    Tai Huy Ha*, Tulane University
    Russ Woodroofe, Mississippi State University
    (1089-13-236)
  • 9:00 a.m.
    Lattice-point generating functions for free sums of polytopes.
    Matthias Beck, San Francisco State University
    Pallavi Jayawant, Bates College
    Tyrrell B. McAllister*, University of Wyoming
    (1089-52-374)
  • 9:30 a.m.
    Matroids and stabilization of K-polynomials.
    Andrew Berget, University of Washington
    Alex Fink*, North Carolina State University
    (1089-05-122)
  • 10:00 a.m.
    Secant Cumulants.
    Mateusz Michalek, Max Planck Institute, Bonn Germany, and Mathematical Institute of the Polish Academy of Sciences, Warszawa Poland
    Luke Oeding*, University of California, Berkeley
    Piotr Zwiernik, Department of Statistics, University of California, Berkeley
    (1089-14-124)
  • 10:30 a.m.
    Eigenschemes and deformations in the tangent bundle.
    Hirotachi Abo, University of Idaho
    David Eklund, Colorado State University
    Chris Peterson*, Colorado State University
    (1089-14-322)
• Saturday April 13, 2013, 8:30 a.m.-10:50 a.m.
  Special Session on Extremal Graph Theory, I
  Room 1B90, Eaton Humanities
  Organizers:
  Michael Ferrara, University of Colorado Denver michael.ferrara@ucdenver.edu
  Stephen Hartke, University of Nebraska-Lincoln
  Michael Jacobson, University of Colorado Denver
  

  • 8:30 a.m.
    2-edge-connected fair detachments of $(\leq 3)$-graphs.
    Amin Bahmanian*, University of Ottawa
    (1089-05-202)
  • 9:00 a.m.
    De Bruijn sequences with varying combs.
    Abbas Alhakim, American University of Beirut
    Steve Butler*, Iowa State University
    Ron Graham, UC San Diego
    (1089-05-362)
  • 9:30 a.m.
    Some extremal questions for independent sets.
    David J Galvin*, Department of Mathematics, University of Notre Dame
    (1089-05-111)
  • 10:00 a.m.
    Hypergraph irregularity.
    Jeno Lehel*, University of Memphis, Tennessee
    (1089-05-117)
  • 10:30 a.m.
    EKR on Graphs and Lattices.
    Glenn H Hurlbert*, Arizona State University
    (1089-05-204)
• Saturday April 13, 2013, 8:30 a.m.-10:50 a.m.
  Special Session on Geometric Methods in the Representation Theory of Reductive Groups, I
  Room 137, Hellems Arts and Sciences
  Organizers:
  J. Matthew Douglass, University of North Texas douglass@unt.edu
  Gerhard Roehrle, Ruhr- Universitaet Bochum
  Rahbar Virk, University of Colorado Boulder
  

  • 8:30 a.m.
    Weyl group actions on the Springer sheaf.
    Pramod N Achar*, Louisiana State University
    Anthony Henderson, University of Sydney
    Daniel Juteau, Université de Caen
    Simon Riche, Université Blaise Pascal - Clermont-Ferrand II
    (1089-20-246)
  • 9:00 a.m.
    A geometric Ringel duality for nilpotent cones.
    Carl Mautner*, Harvard University
    (1089-20-273)
  • 9:30 a.m.
    Cuspidal Local Systems and a Decomposition Involving Perverse Sheaves on the Nilpotent Cone.
    Amber Russell*, University of Georgia
    Laura Rider, Louisiana State University
    (1089-18-307)
  • 10:00 a.m.
    Fourier-Deligne transform and representations of the symmetric group.
    Galyna Dobrovolska*, University of Chicago
    (1089-22-63)
  • 10:30 a.m.
    On q-analogues of the characteristic polynomials of some hyperplane arrangements.
    Eric Sommers*, U of Massachusetts, Amherst and NSF
    (1089-17-207)
• Saturday April 13, 2013, 8:30 a.m.-10:50 a.m.
  Special Session on Harmonic Analysis of Frames, Wavelets, and Tilings, I
  Room 237, Hellems Arts and Sciences
  Organizers:
  Veronika Furst, Fort Lewis College
  Keri Kornelson, University of Oklahoma
  Eric Weber, Iowa State University esweber@iastate.edu
  

  • 8:30 a.m.
    Spectral property of Cantor measures with consecutive digits.
    Chun-Kit Lai*, Department of Mathematics and Statistics,McMaster University.
    Xin-Rong Dai, Sun Yat-Sen University, Guangzhou
    Xing-Gang He, Central China Normal University
    (1089-42-67)
  • 9:00 a.m.
    Tiling Properties of Spectra of Measures.
    Dorin Ervin Dutkay, University of Central Florida
    John Haussermann*, University of Central Florida
    (1089-46-260)
  • 9:30 a.m.
    Orthonormal Bases Generated by Cuntz Algebras.
    Dorin Dutkay, University of central Florida
    Gabriel Picioroaga*, University of South Dakota
    Myung-Sin Song, Southern Illinois University Edwardsville
    (1089-42-45)
  • 10:00 a.m.
    Spectrally Optimal Frames for Erasures.
    Deguang Han*, University of Central Florida
    (1089-46-47)
  • 10:30 a.m.
    The Fuglede conjecture in dimension one.
    Dorin Ervin Dutkay*, University of Central Florida
    (1089-42-38)
• Saturday April 13, 2013, 8:30 a.m.-10:50 a.m.
  Special Session on Noncommutative Geometry and Geometric Analysis, I
  Room 190, Eaton Humanities
  Organizers:
  Carla Farsi, University of Colorado, Boulder
  Alexander Gorokhovsky, University of Colorado, Boulder Alexander.Gorokhovsky@colorado.edu
  

  • 8:30 a.m.
    Expanders, exact crossed products, and K-theory for group C* algebras.
    Paul Frank Baum*, Penn State University
    (1089-46-193)
  • 9:00 a.m.
    An approach to the Novikov conjecture.
    Crichton Ogle, Ohio State University
    Boris Tsygan*, Northwestern University
    (1089-55-365)
  • 9:30 a.m.
    New approaches to localization algebras.
    Rufus Willett*, University of Hawaii at Manoa
    (1089-19-112)
  • 10:00 a.m.
    Positive scalar curvature, higher rho invariants and localization algebras.
    Zhizhang Xie*, Vanderbilt University
    Guoliang Yu, Texas A&M
    (1089-58-54)
  • 10:30 a.m.
    Calculations with analytic structures.
    John Roe*, Penn State
    (1089-58-61)
• Saturday April 13, 2013, 9:00 a.m.-10:50 a.m.
  Special Session on Associative Rings and Their Modules, I
  Room 1B70, Eaton Humanities
  Organizers:
  Greg Oman, University of Colorado, Colorado Springs goman@uccs.edu
  Zak Mesyan, University of Colorado, Colorado Springs
  

  • 9:00 a.m.
    Global dimensions of some artinian algebras.
    Muge Kanuni*, Bogazici University
    Atabey Kaygun, Bahcesehir University
    (1089-16-157)
  • 9:30 a.m.
    Tensor products of algebras taken from various classes of quotients of path algebras.
    Gene Abrams*, University of Colorado Colorado Springs
    Muge Kanuni, Boğaziçi University
    (1089-16-70)
  • 10:00 a.m.
    Leavitt path algebras with prescribed Krull dimension.
    Kulumani M Rangaswamy*, University of Colorado at Colorado Springs
    (1089-16-25)
  • 10:30 a.m.
    Frobenius-Artin Algebras and Infinite Linear Codes.
    Miodrag C Iovanov*, University of Iowa & University of Bucharest
    (1089-16-151)
• Saturday April 13, 2013, 9:00 a.m.-10:50 a.m.
  Special Session on Diophantine Approximation on Manifolds and Fractals: Dynamics, Measure Theory and Schmidt Games, I
  Room 180, Eaton Humanities
  Organizers:
  Wolfgang Schmidt, University of Colorado at Boulder
  Lior Fishman, University of North Texas lfishman@unt.edu
  

  • 9:00 a.m.
    Some Topics in Diophantine Approximation.
    Wolfgang M Schmidt*, University of Colorado Boulder
    (1089-11-145)
  • 10:00 a.m.
    Strong $C^1$ Incompressibility, Badly Approximable Linear Forms, and Schmidt's Game.
    Ryan Broderick*, Northwestern University
    Lior Fishman, University of North Texas
    David Simmons, The Ohio State University
    (1089-37-225)
  • 10:30 a.m.
    Intrinsic Approximation on Quadratic Varieties.
    Lior Fishman, University of North Texas
    Dmitry Kleinbock, Brandeis University
    Keith Merrill*, Brandeis University
    David Simmons, Ohio State University
    (1089-11-185)
• Saturday April 13, 2013, 9:00 a.m.-10:50 a.m.
  Special Session on Elliptic Systems and Their Applications, I
  Room 181, Hellems Arts and Sciences
  Organizers:
  Wenxiong Chen, Yeshiva University wchen@yu.edu
  Congming Li, University of Colorado at Boulder
  

  • 9:00 a.m.
    Asymptotic Behavior of Solutions to the Liquid Crystal System in $H^m(\mathbb{R}^3)$.
    Mimi Dai*, University of Colorado Boulder
    Maria Elena Schonbek, University of California Santa Cruz
    (1089-35-174)
  • 9:30 a.m.
    Stable Homologies through deformations of $v$-convex contact forms.
    Abbas Bahri*, Rutgers University
    (1089-58-104)
  • 10:00 a.m.
    Estimates for fully nonlinear elliptic equations on real or complex manifolds.
    Bo Guan*, Department of Mathematics, Ohio State University
    (1089-35-399)
  • 10:30 a.m.
    Hypersurfaces in hyperbolic space with support functions.
    Vincent Bonini, Cal Poly San Luis Obispo
    Jose M. Espinar, IMPA
    Jie Qing*, UC Santa Cruz
    (1089-58-342)
• Saturday April 13, 2013, 9:00 a.m.-10:50 a.m.
  Special Session on Number Theory with a Focus on Diophantine Equations and Recurrence Sequences, I
  Room 186, Eaton Humanities
  Organizers:
  Patrick Ingram, Colorado State University pingram@math.colostate.edu
  Katherine E. Stange, University of Colorado, Boulder
  

  • 9:00 a.m.
    Gaps between squares and other perfect powers.
    Michael A. Bennett*, University of British Columbia
    (1089-11-377)
  • 9:30 a.m.
    Perfect Powers in Elliptic Nets.
    Soroosh Yazdani*, University of Lethbridge
    (1089-11-108)
  • 10:00 a.m.
    Resultants of division polynomials.
    David Grant*, University of Colorado at Boulder
    (1089-11-306)
  • 10:30 a.m.
    norm-Euclidean multiquadratic number fields.
    Amy Feaver*, University of Colorado - Boulder
    (1089-11-59)
• Saturday April 13, 2013, 9:00 a.m.-10:55 a.m.
  Session on AMS Contributed Paper Session, I
  Room 247, Hellems Arts and Sciences
  

  • 9:00 a.m.
    Using an Iterative Singular Value Decomposition Algorithm for Collaborative Filtering Problems.
    Kourosh Modarresi*, Stanford, CA
    (1089-15-398)
  • 9:15 a.m.
    Algebraic Properties of Generalized Rijndael-like Ciphers.
    Kevin W Bombardier*, Wichita State University
    L. Babinkostova, Boise State University
    M. Cole, University of Notre Dame
    T. Morrell, Washington University in St. Louis
    C. Scott, Colorado College
    (1089-20-244)
  • 9:30 a.m.
    An Algorithm for Solving the Convex Feasibility Problem With Linear Matrix Inequality Constraints and an Implementation for Second-Order Cones.
    Shafiu Jibrin*, Northern Arizona University
    Bryan Karlovitz, West Chester University of Pennsylvania
    (1089-90-57)
  • 9:45 a.m.
    Elliptic Reciprocity.
    Cory Scott*, Colorado College
    Liljana Babinkostova, Boise State University
    Kevin Bombadier, Wichita State University
    Matthew Cole, Notre Dame University
    Thomas Morrell, Washington State University in St. Louis
    (1089-14-64)
  • 10:00 a.m.
    Sparse Nearest Neighbor Selection for the Locally Linear Embedding Algorithm.
    Lori Beth Ziegelmeier*, Colorado State University
    Michael Kirby, Colorado State University
    Chris Peterson, Colorado State University
    (1089-49-325)
  • 10:15 a.m.
    Perturbed Regeneration homotopies for finding all isolated solutions to a polynomial system.
    Dan Bates, Colorado State University
    Brent Davis, Colorado State University
    David Eklund, Colorado State University
    Eric Hanson*, Colorado State University
    Chris Peterson, Colorado State University
    (1089-14-303)
  • 10:30 a.m.
    Relationship between generalized Kobayashi metric and hyperbolic metric.
    Kourosh Tavakoli*, Oklahoma City University
    (1089-30-394)
  • 10:45 a.m.
    A cluster structure on some hyperbolic categories.
    Ibrahim A Saleh*, University of Wisconsin Colleges
    (1089-05-133)
• Saturday April 13, 2013, 11:10 a.m.-12:00 p.m.
  Invited Address
  The shape of data.
  Room 1B50, Eaton Humanities
  Gunnar E. Carlsson*, Stanford University
  (1089-55-01)
• Saturday April 13, 2013, 2:00 p.m.-2:50 p.m.
  Invited Address
  Rational curves on symplectic varieties.
  Room 1B50, Eaton Humanities
  Brendan E. Hassett*, Rice University
  (1089-14-03)
• Saturday April 13, 2013, 3:00 p.m.-4:50 p.m.
  Special Session on Advances in Mathematical Biology, I
  Room 185, Hellems Arts and Sciences
  Organizers:
  Liming Wang, California State University, Los Angeles limingwang.math@gmail.com
  Jiangguo Liu, Colorado State University
  

  • 3:00 p.m.
    Modeling emergent properties of synthetic bacterial consortia.
    Tomas Gedeon*, Department of Mathematical Sciences, MSU, BOZEMAN
    Emily Harvey, Department of Mathematical Sciences, MSU, Bozeman
    Jeffrey Heys, Department of Chemical and Biological Engineering, MSU, Bozeman
    Ross Carlsson, Department of Chemical and Biological Engineering, MSU, Bozeman
    (1089-92-107)
  • 3:30 p.m.
    Mathematical modeling of the dynamic interaction between cancer stem cells and non-stem cancer cells.
    Xinfeng Liu*, University of South Carolina
    (1089-92-160)
  • 4:00 p.m.
    PDE Network Models for River Populations.
    Robert Carlson*, University of Colorado at Colorado Springs
    Kurt Anderson, Department of Biology, University of California at Riverside
    Jonathan Sarhad, Department of Biology, University of California at Riverside
    (1089-92-23)
  • 4:30 p.m.
    From molecules to development: revealing simple rules of biological clocks.
    Qiong Yang*, Stanford University
    James E. Ferrell, Stanford University
    (1089-92-08)
• Saturday April 13, 2013, 3:00 p.m.-5:40 p.m.
  Special Session on Algebraic Geometry, II
  Room 259, Hellems Arts and Sciences
  Organizers:
  Sebastian Casalaina-Martin, University of Colorado casa@math.colorado.edu
  Renzo Cavalieri, Colorado State University
  Brendan Hassett, Rice University
  Jonathan Wise, University of Colorado
  

  • 3:00 p.m.
    Virtual invariants on Quot schemes over Del Pezzo surfaces.
    Daniel Schultheis*, University of Arizona
    (1089-14-344)
  • 4:00 p.m.
    Reduced Gromov-Witten theories and the crepant resolution conjecture.
    Simon CF Rose*, Queen's University
    (1089-14-149)
  • 5:00 p.m.
    The moduli space of stable rational curves---one $\mathbb{G}_a$ away from toric.
    Noah Giansiracusa*, U.C. Berkeley
    (1089-14-213)
• Saturday April 13, 2013, 3:00 p.m.-5:20 p.m.
  Special Session on Algebras, Lattices and Varieties, II
  Room 255, Hellems Arts and Sciences
  Organizers:
  Keith A. Kearnes, University of Colorado, Boulder kearnes@euclid.colorado.edu
  Ágnes Szendrei, University of Colorado, Boulder
  

  • 3:00 p.m.
    Varieties of Lattice-Ordered Groups and Unital Lattice-Ordered Groups.
    W. Charles Holland*, University of Colrorado
    (1089-06-95)
  • 3:30 p.m.
    Involutive residuated lattices based on modular and distributive lattices.
    Jeffrey S. Olson*, Norwich University
    (1089-06-17)
  • 4:00 p.m.
    Distributive integral residuated lattices have the FEP.
    Nikolaos Galatos*, University of Denver
    (1089-06-326)
  • 4:30 p.m.
    Varieties of generalized hoops and integral GBL-algebras.
    Peter Jipsen*, Chapman University
    (1089-06-381)
  • 5:00 p.m.
    Automorphisms of Decompositions.
    Tim Hannan, New Mexico State University
    John Harding*, New Mexico State University
    (1089-06-114)
• Saturday April 13, 2013, 3:00 p.m.-5:20 p.m.
  Special Session on Analysis of Dynamics of the Incompressible Fluids, II
  Room 245, Eaton Humanities
  Organizers:
  Mimi Dai, University of Colorado, Boulder mimi.dai@colorado.edu
  Congming Li, University of Colorado, Boulder
  

  • 3:00 p.m.
    Fokker-Planck and Neuroscience.
    Maria E. Schonbek*, University of California, Santa Cruz, Math Department
    Jose A Carrillo, Imperial College London, Math department
    Maria Gonzalez, ETSEIB - Departament de Matematica Aplicada I, Universitat Politecnica de Catalunya, E-08028 Barcelona, Spain
    Maria Gualdani, Mathematics Department George Washington University
    (1089-76-102)
  • 3:30 p.m.
    Almost sure existence of global weak solutions for Navier-Stokes equations.
    Andrea R. Nahmod, University of Massachusetts
    Natasa Pavlovic*, University of Texas at Austin
    Gigliola Staffilani, Massachusetts Institute of Technology
    (1089-35-227)
  • 4:00 p.m.
    Norm Inflation for Generalized Navier-Stokes Equations.
    Alexey Cheskidov, University of Illinois Chicago
    Mimi Dai*, University of Colorado Boulder
    (1089-35-175)
  • 4:30 p.m.
    Phase field models for two phase flows in karstic geometry.
    Xiaoming Wang*, Florida State University, Department of Mathematics
    (1089-76-263)
  • 5:00 p.m.
    The 2D Euler-Boussinesq equations with a logarithmically supercritical velocity.
    Durga KC, Oklahoma State University
    Dipendra Regmi*, Oklahoma State University
    Lizheng Tao, Oklahoma State University
    Jiahong Wu, Oklahoma State University
    (1089-35-105)
• Saturday April 13, 2013, 3:00 p.m.-5:50 p.m.
  Special Session on Arithmetic Statistics and Big Monodromy, II
  Room 263, Hellems Arts and Sciences
  Organizers:
  Jeff Achter, Colorado State University achter@math.colostate.edu
  Chris Hall, University of Wyoming
  

  • 3:00 p.m.
    Counting Abelian Surfaces with Real Multiplication over $\mathbb{F}_q$.
    Hilary Smallwood*, Colorado State University
    (1089-11-370)
  • 3:30 p.m.
    Enumerating abelian varieties using matrix groups.
    Cassie L Williams*, James Madison University
    (1089-11-96)
  • 4:00 p.m.
    Dwork's unit root L-function for toric exponential sums.
    C. Douglas Haessig*, University of Rochester, NY
    (1089-11-364)
  • 4:30 p.m.
    Statistics for Artin-Schreier covers over finite fields.
    Alina Bucur*, UCSD
    Chantal David, Concordia University
    Brooke Feigon, CCNY
    Matilde Lalin, Universite de Montreal
    (1089-11-329)
  • 5:00 p.m.
    Distribution of zeta zeroes of Artin-Schreier curves.
    Chantal David*, Concordia University
    (1089-11-287)
  • 5:30 p.m.
    A lower bound for the $a$-number of a wildly ramified $p$-cover.
    Bryden Cais*, University of Arizona
    (1089-14-248)
• Saturday April 13, 2013, 3:00 p.m.-5:50 p.m.
  Special Session on Associative Rings and Their Modules, II
  Room 1B70, Eaton Humanities
  Organizers:
  Greg Oman, University of Colorado, Colorado Springs goman@uccs.edu
  Zak Mesyan, University of Colorado, Colorado Springs
  

  • 3:00 p.m.
    Jacobson's Lemma, Drazin Inverses, and Strongly Clean Rings.
    T.Y. Lam, University of California Berkeley
    Pace P. Nielsen*, Brigham Young University
    (1089-16-50)
  • 3:30 p.m.
    Strongly Clean Triangular Matrix Rings.
    Alexander J Diesl*, Wellesley College
    Thomas J Dorsey, Center for Communications Research
    Wolf Iberkleid, Nova Southeastern University
    Ramiro LaFuente-Rodriguez, Columbia College
    Warren Wm. McGovern, Florida Atlantic University
    (1089-16-318)
  • 4:00 p.m.
    Rings of maximal clean index.
    Alexander J. Diesl, Wellesley College
    Thomas J. Dorsey*, IDA/CCR-La Jolla
    (1089-16-345)
  • 4:30 p.m.
    Rings with Dimension.
    Lia Vas*, University of the Sciences
    (1089-16-68)
  • 5:00 p.m.
    Diagonalizing matrices over AW*-algebras.
    Chris Heunen, Oxford University
    Manuel L. Reyes*, Bowdoin College
    (1089-46-134)
  • 5:30 p.m.
    Rings of Continuous Functions of Countable Range.
    Warren W McGovern*, H.L. Wilkes Honors College, FAU
    (1089-13-301)
• Saturday April 13, 2013, 3:00 p.m.-5:50 p.m.
  Special Session on Cluster Algebras and Related Combinatorics, II
  Room 191, Hellems Arts and Sciences
  Organizers:
  Gregg Musiker, University of Minnesota
  Kyungyong Lee, Wayne State University klee@math.wayne.edu
  Li Li, Oakland University
  

  • 3:00 p.m.
    Mutation-linear algebra and universal geometric coefficients for cluster algebras.
    Nathan Reading*, North Carolina State University
    (1089-13-291)
  • 3:30 p.m.
    Revisiting the combinatorics of generalized cluster complexes and generalized associahedra in finite types.
    Christian Stump*, University of Hannover, Germany
    (1089-05-357)
  • 4:00 p.m.
    Wonder of sine-Gordon Y-systems.
    Tomoki Nakanishi, Nagoya University
    Salvatore Stella*, Northeastern University
    (1089-13-240)
  • 4:30 p.m.
    Dynamical systems that become singular in both directions.
    Max Glick*, University of California, Berkeley
    (1089-37-229)
  • 5:00 p.m.
    The $AG$-invariant for $(m+2)$-angulations.
    Lucas David-Roesler*, Lebanon Valley College
    (1089-16-91)
  • 5:30 p.m.
    $c$-vectors of acyclic cluster algebras.
    David Speyer, University of Michigan
    Hugh Thomas*, University of New Brunswick
    (1089-13-351)
• Saturday April 13, 2013, 3:00 p.m.-5:50 p.m.
  Special Session on Combinatorial Avenues in Representation Theory, II
  Room 135, Eaton Humanities
  Organizers:
  Richard Green, University of Colorado Boulder
  Anne Shepler, University of North Texas ashepler@unt.edu
  Nathaniel Thiem, University of Colorado Boulder
  

  • 3:00 p.m.
    Rational Schur algebras and their $q$-analogues.
    Stephen Doty*, Loyola University Chicago
    (1089-16-162)
  • 3:30 p.m.
    The partition algebra and the Kronecker coefficients.
    Christopher Bowman, Institut de Mathematiques de Jussieu
    Maud De Visscher, City University London
    Rosa Orellana*, Dartmouth
    (1089-20-237)
  • 4:00 p.m.
    Electrical networks and Lie theory.
    Thomas Lam*, University of Michigan
    Pavlo Pylyavskyy, University of Minnesota
    (1089-05-79)
  • 4:30 p.m.
    Permutation modules for Brauer algebras.
    Stephen Doty, Loyola University Chicago
    Aaron Lauve*, Loyola University Chicago
    George Seelinger, III, Loyola University Chicago
    (1089-20-238)
  • 5:00 p.m.
    McKay Centralizer Algebras I.
    Tom Halverson*, Macalester College
    Georgia Benkart, University of Wisconsin, Madison
    (1089-20-261)
  • 5:30 p.m.
    McKay Centralizer Algebras II.
    Georgia Benkart*, University of Wisconsin-Madison
    Tom Halverson, Macalester College
    (1089-05-269)
• Saturday April 13, 2013, 3:00 p.m.-5:50 p.m.
  Special Session on Combinatorial and Computational Commutative Algebra and Algebraic Geometry, II
  Room 251, Hellems Arts and Sciences
  Organizers:
  Hirotachi Abo, University of Idaho
  Zach Teitler, Boise State University
  Alexander Woo, University of Idaho awoo@uidaho.edu
  

  • 3:00 p.m.
    Applications of Lusztig-Vogan Polynomials.
    Peter E Trapa*, University of Utah
    (1089-22-266)
  • 3:30 p.m.
    The Action of $Sp_n$ on $\text{Flags}(\mathbb{C}^n)$.
    Anna S. Bertiger*, Cornell University
    (1089-14-359)
  • 4:00 p.m.
    Arithmetically Gorenstein and Gorenstein Richardson Varieties in the Grassmannian.
    Chayapa Darayon*, University of Illinois at Urbana-Champaign
    (1089-14-378)
  • 4:30 p.m.
    Factoring sums of Schubert polynomials.
    Mahir B. Can, Tulane University
    Michael Joyce, Tulane University
    Benjamin J. Wyser*, University of Illinois at Urbana-Champaign
    (1089-14-387)
  • 5:00 p.m.
    Computations in equivariant quantum cohomology of Grassmannians.
    Kaisa Taipale*, Cornell University, Ithaca, NY
    Elizabeth Beazley, Haverford College, Haverford, PA
    Anna Bertiger, Cornell University, Ithaca, NY
    (1089-05-371)
  • 5:30 p.m.
    Coxeter groups and Poincaré polynomials.
    Edward Richmond*, University of British Columbia
    William Slofstra, UC Davis
    (1089-05-220)
• Saturday April 13, 2013, 3:00 p.m.-5:50 p.m.
  Special Session on Diophantine Approximation on Manifolds and Fractals: Dynamics, Measure Theory and Schmidt Games, II
  Room 180, Eaton Humanities
  Organizers:
  Wolfgang Schmidt, University of Colorado at Boulder
  Lior Fishman, University of North Texas lfishman@unt.edu
  

  • 3:00 p.m.
    Schmidt games for billiards, interval exchange transformations and measured foliations.
    Howard Masur*, University of Chicago
    Jon Chaika, University of Chicago
    Yitwah Cheung, San Francisco State
    (1089-32-53)
  • 4:00 p.m.
    Badly approximable directions on flat surfaces.
    Jon Chaika*, University of Chicago/University of Utah
    Yitwah Cheung, San Francisco State
    Howard Masur, University of Chicago
    (1089-51-189)
  • 4:30 p.m.
    Absolute Schmidt's Game With Regrets.
    Erez Nesharim*, Tel Aviv University
    (1089-11-195)
  • 5:00 p.m.
    Schmidt games and conditions on resonant sets.
    Steffen Weil*, University of Zurich
    (1089-51-168)
  • 5:30 p.m.
    The distribution of rational points near planar curves and metric Diophantine approximation.
    Jing-Jing Huang*, University of Toronto
    (1089-11-242)
• Saturday April 13, 2013, 3:00 p.m.-5:50 p.m.
  Special Session on Dynamical Systems: Thermodynamic Formalism and Connections with Geometry, II
  Room 229, Hellems Arts and Sciences
  Organizers:
  Keith Burns, Northwestern University
  Dan Thompson, The Ohio State University thompson@math.osu.edu
  

  • 3:00 p.m.
    Thermodynamics of flows with cusps.
    Godofredo Iommi, Pontificia Universidad Católica de Chile, Chile
    Thomas Jordan, University of Bristol, UK
    Mike Todd*, University of St Andrews, UK
    (1089-37-206)
  • 3:30 p.m.
    Counting geodesics connecting two base points through 'sectors'.
    Bryce A. Weaver*, Indiana University
    (1089-37-279)
  • 4:00 p.m.
    Uniqueness of the measure of maximal entropy for the squarefree flow.
    Ryan Peckner*, Princeton University
    (1089-37-138)
  • 4:30 p.m.
    Central limit theorems for the shrinking target problem.
    Nicolai Haydn, University of Southern California
    Matthew Nicol*, University of Houston
    Sandro Vaienti, UMR-7332 Centre de Physique Théorique, CNRS, Université d'Aix-Marseille, Université du Sud Toulon-Var
    Licheng Zhang, University of Houston
    (1089-37-280)
  • 5:00 p.m.
    Affine Invariant Submanifolds with Completely Degenerate Kontsevich-Zorich Spectrum.
    David Aulicino*, University of Chicago
    (1089-37-201)
  • 5:30 p.m.
    Thermodynamic Formalism, Riemann surfaces, the Laplacian and its determinant.
    Mark Pollicott*, University of Warwick, UK
    (1089-37-313)
• Saturday April 13, 2013, 3:00 p.m.-5:40 p.m.
  Special Session on Elliptic Systems and Their Applications, II
  Room 181, Hellems Arts and Sciences
  Organizers:
  Wenxiong Chen, Yeshiva University wchen@yu.edu
  Congming Li, University of Colorado at Boulder
  

  • 3:00 p.m.
    Vortices for a Two-Component Ginzburg-Landau System.
    Stan Alama*, McMaster University
    Qi Gao, McMaster University
    (1089-35-290)
  • 3:30 p.m.
    On higher order extensions for the fractional Laplacian.
    Ray Yang*, Courant Institute for Mathematical Sciences, NYU
    (1089-35-310)
  • 4:00 p.m.
    Well-posedness of nematic liquid crystal flows in $L^3_{uloc}(R^3)$.
    Changyou Wang*, University of Kentucky
    Jay Hineman, University of Kentucky
    (1089-35-255)
  • 4:30 p.m.
    Oscillatory entire solutions of polyharmonic equations with power nonlinearities.
    Monica Lazzo, University of Bari, Italy
    Paul G Schmidt*, Auburn University, USA
    (1089-35-341)
  • 5:00 p.m.
    Discussion
• Saturday April 13, 2013, 3:00 p.m.-5:20 p.m.
  Special Session on Extremal Graph Theory, II
  Room 1B90, Eaton Humanities
  Organizers:
  Michael Ferrara, University of Colorado Denver michael.ferrara@ucdenver.edu
  Stephen Hartke, University of Nebraska-Lincoln
  Michael Jacobson, University of Colorado Denver
  

  • 3:00 p.m.
    All minor-minimal apex obstructions that have connectivity two.
    Csaba Biro, University of Louisville
    Adam Jobson, University of Louisville
    Andre Kezdy*, University of Louisville
    (1089-05-209)
  • 3:30 p.m.
    A Refinement of the Corrádi-Hajnal Theorem.
    H. Kierstead, University of Illinois at Urbana-Champaign
    A. Kostochka, University of Illinois at Urbana-Champaign
    E. Yeager*, University of Illinois at Urbana-Champaign
    (1089-05-103)
  • 4:00 p.m.
    Theorems and conjectures extending the Hajnal-Szemerédi Theorem to directed graphs.
    Andrzej Czygrinow, Arizona State University
    Louis DeBiasio, Miami University
    H. A. Kierstead*, Arizona State University
    Theodore Molla, Arizona State University
    (1089-05-392)
  • 4:30 p.m.
    The semi-degree threshold for anti-directed Hamilton cycles.
    Louis DeBiasio, Miami University
    Theodore Molla*, Arizona State University
    (1089-05-349)
  • 5:00 p.m.
    Forbidden Subgraphs and Hamiltonian Connected Graphs.
    Ronald J. Gould*, Emory University
    (1089-05-186)
• Saturday April 13, 2013, 3:00 p.m.-5:40 p.m.
  Special Session on Foundations of Computational Mathematics, II
  Room 193, Hellems Arts and Sciences
  Organizers:
  Susan Margulies, Pennsylvania State University margulies@math.psu.edu
  Jesus De Loera, University of California, Davis
  

  • 3:00 p.m.
    Efficient Computation of a Canonical Form for a Generalized P-matrix.
    Walter D Morris*, George Mason University
    (1089-90-231)
  • 4:00 p.m.
    Counting inequivalent monotone Boolean functions.
    Tamon Stephen, Simon Fraser University
    Timothy Yusun*, Simon Fraser University
    (1089-68-393)
  • 5:00 p.m.
    A PTAS for Matroid Matching.
    Jon Lee*, University of Michigan
    (1089-68-159)
• Saturday April 13, 2013, 3:00 p.m.-5:40 p.m.
  Special Session on Geometric Methods in the Representation Theory of Reductive Groups, II
  Room 137, Hellems Arts and Sciences
  Organizers:
  J. Matthew Douglass, University of North Texas douglass@unt.edu
  Gerhard Roehrle, Ruhr- Universitaet Bochum
  Rahbar Virk, University of Colorado Boulder
  

  • 3:00 p.m.
    Weyl group representations on a family of subvarieties of flag varieties.
    Julianna Tymoczko*, Smith College
    (1089-14-400)
  • 3:30 p.m.
    An Affine Paving of Hessenberg Varieties.
    Martha E Precup*, University of Notre Dame
    (1089-22-212)
  • 4:00 p.m.
    Applications of Chow motives to algebraic groups.
    S. Garibaldi*, Emory University
    V. Petrov, Steklov Institute
    N. Semenov, Mainz
    (1089-20-188)
  • 4:30 p.m.
    Quiver Grassmannians.
    Markus Reineke*, Bergische Universitaet Wuppertal
    (1089-14-293)
  • 5:00 p.m.
    Loop Grassmannians.
    Ivan Mirkovic*, U. of Massachusetts, Amherst MA
    (1089-20-375)
• Saturday April 13, 2013, 3:00 p.m.-5:50 p.m.
  Special Session on Harmonic Analysis of Frames, Wavelets, and Tilings, II
  Room 237, Hellems Arts and Sciences
  Organizers:
  Veronika Furst, Fort Lewis College
  Keri Kornelson, University of Oklahoma
  Eric Weber, Iowa State University esweber@iastate.edu
  

  • 3:00 p.m.
    Simple n-dimensional wavelet sets.
    Kathy D. Merrill*, Colorado College
    (1089-41-254)
  • 3:30 p.m.
    Linear independence of time-frequency translates of functions with faster than exponential decay.
    Marcin Bownik, University of Oregon
    Darrin Speegle*, St. Louis University
    (1089-42-120)
  • 4:00 p.m.
    Existence of frames with prescribed norms and frame operator.
    Marcin Bownik*, University of Oregon
    John Jasper, University of Missouri
    (1089-42-74)
  • 4:30 p.m.
    Spectra of frame operators with prescribed frame norms.
    John Jasper*, University of Missouri
    Marcin Bownik, University of Oregon
    (1089-42-304)
  • 5:00 p.m.
    Characterizing completions of finite frames.
    Matthew Fickus*, Air Force Institute of Technology
    (1089-42-73)
  • 5:30 p.m.
    Fusion Frames for Wireless Sensor Networks.
    Peter G. Casazza*, University of Missouri
    (1089-15-42)
• Saturday April 13, 2013, 3:00 p.m.-5:20 p.m.
  Special Session on Noncommutative Geometry and Geometric Analysis, II
  Room 190, Eaton Humanities
  Organizers:
  Carla Farsi, University of Colorado, Boulder
  Alexander Gorokhovsky, University of Colorado, Boulder Alexander.Gorokhovsky@colorado.edu
  

  • 3:00 p.m.
    A (Very) Brief History of the Index Theory of Toeplitz Operators.
    Erik Van Erp*, University of Hawaii at Manoa
    (1089-58-271)
  • 3:30 p.m.
    Getzler Symbol Calculus and Deformation Quantization.
    Camilo Mesa*, University of Colorado at Boulder
    (1089-53-36)
  • 4:00 p.m.
    Quantum Locally Compact Metric Spaces.
    Frederic Latremoliere*, University of Denver
    (1089-46-110)
  • 4:30 p.m.
    The algebraic K-theory Novikov conjecture and higher index theory.
    Guoliang Yu*, Texas A&M University
    (1089-19-87)
  • 5:00 p.m.
    Discussion
• Saturday April 13, 2013, 3:00 p.m.-5:50 p.m.
  Special Session on Nonlinear Waves and Integrable Systems, II
  Room 125, Eaton Humanities
  Organizers:
  Christopher W. Curtis, University of Colorado, Boulder
  Anton Dzhamay, University of Northern Colorado
  Willy Hereman, Colorado School of Mines
  Barbara Prinari, University of Colorado, Colorado Springs bprinari@uccs.edu
  

  • 3:00 p.m.
    Symbolic Computation of Lax Pairs of Systems of Partial Difference Equations Using Consistency Around the Cube.
    Willy Hereman*, Department of Applied Mathematics and Statistics, Colorado School of Mines
    Terry Bridgman, Department of Applied Mathematics and Statistics, Colorado School of Mines
    (1089-39-140)
  • 3:30 p.m.
    A geometric approach of discretizations of some partial differential equations.
    Kenichi Maruno*, Department of Mathematics, University of Texas - Pan American
    (1089-35-253)
  • 4:00 p.m.
    Geometry of hyperbolic conservative systems.
    Micahel Benfield, North Carolina State University
    Helge Kristian Jenssen, Penn State University
    Irina A. Kogan*, North Carolina State University
    (1089-35-101)
  • 4:30 p.m.
    Integrability and Symmetry Reduction for Maps.
    Hector E Lomeli*, Instituto Tecnologico Autonomo de Mexico (ITAM)
    (1089-37-401)
  • 5:00 p.m.
    Direct Scattering Problem for Zakharov-Shabat system: characterization of scattering data.
    Francesco Demontis*, Dep. of Mathematics, University of Cagliari, Italy
    Cornelis van der Mee, Dep. of Mathematics, University of Cagliari, Italy
    (1089-45-44)
  • 5:30 p.m.
    Integrability of higher pentagram maps.
    Fedor L Soloviev*, University of Toronto
    Boris Khesin, University of Toronto
    (1089-51-232)
• Saturday April 13, 2013, 3:00 p.m.-4:50 p.m.
  Special Session on Number Theory with a Focus on Diophantine Equations and Recurrence Sequences, II
  Room 186, Eaton Humanities
  Organizers:
  Patrick Ingram, Colorado State University pingram@math.colostate.edu
  Katherine E. Stange, University of Colorado, Boulder
  

  • 3:00 p.m.
    Discriminants and Galois groups for iterated rational functions.
    Rafe Jones, Carleton College
    Michelle Manes*, University of Hawaii at Manoa
    (1089-11-141)
  • 3:30 p.m.
    Primitive Divisors in Generalized Iterations of Chebyshev Polynomials.
    Nathan Paul Wakefield*, University of Colorado, Boulder
    (1089-11-18)
  • 4:00 p.m.
    Uniform bounds for pre-periodic points in families of twists.
    Alon Levy, University of British Colombia
    Michelle Manes, University of Hawaii at Manoa
    Bianca Thompson*, University of Hawaii at Manoa
    (1089-11-109)
  • 4:30 p.m.
    On quadratic rational maps with prescribed good reduction.
    Clayton Petsche*, Oregon State University
    Brian Stout, CUNY Graduate Center
    (1089-11-199)
• Saturday April 13, 2013, 3:00 p.m.-5:40 p.m.
  Special Session on Set Theory and Boolean Algebras, II
  Room 177, Hellems Arts and Sciences
  Organizers:
  Natasha Dobrinen, University of Denver natasha.dobrinen@du.edu
  Don Monk, University of Colorado, Boulder
  

  • 3:00 p.m.
    Scott Processes.
    Paul B. Larson*, Miami University
    (1089-03-203)
  • 4:00 p.m.
    Countable dense homogeneity and set theory.
    Andrea Medini*, University of Wisconsin - Madison
    (1089-54-235)
  • 5:00 p.m.
    On pseudotree algebras and their underlying pseudotrees.
    Jennifer Anne Brown*, California State University Channel Islands
    (1089-06-251)
• Saturday April 13, 2013, 3:00 p.m.-5:40 p.m.
  Special Session on Singular Spaces in Geometry, Topology, and Algebra, II
  Room 145, Eaton Humanities
  Organizers:
  Greg Friedman, Texas Christian University greg.b.friedman@gmail.com
  Laurentiu Maxim, University of Wisconsin, Madison
  

  • 3:00 p.m.
    The Swing and the Structure of the Vanishing Cycles of Non-isolated Hypersurface Singularities.
    David B. Massey*, Northeastern University
    (1089-32-69)
  • 4:00 p.m.
    Signatures on the Primitive Parts of the Real Jacobian Algebra.
    Xavier Gomez-Mont*, CIMAT, Guanajuato, Mexico
    (1089-32-100)
  • 5:00 p.m.
    Twisted Alexander polynomials of algebraic curves.
    Anatoly Libgober*, University of Illinois at Chicago
    (1089-14-181)
• Saturday April 13, 2013, 3:00 p.m.-5:50 p.m.
  Special Session on Themes in Applied Mathematics: From Data Analysis through Fluid Flows and Biology to Topology, II
  Room 1B80, Eaton Humanities
  Organizers:
  Hanna Makaruk, Los Alamos National Laboratory
  Robert Owczarek, University of New Mexico, and Enfitek, Inc owczarek@hughes.net
  

  • 3:00 p.m.
    Permutations of Cubical Arrays.
    Gregory P. Wene*, The University of Texas at San Antonio
    (1089-17-292)
  • 3:30 p.m.
    Optimal design of an inflatable, free-standing solar updraft tower.
    Peter Vorobieff*, The University of New Mexico
    Vakhtang Putkaradze, University of Alberta
    Andrea Mammoli, The University of New Mexico
    Nima Fathi, The University of New Mexico
    (1089-39-154)
  • 4:00 p.m.
    Practical Considerations for Analysis By Synthesis, a Real World Example using DARHT Radiography.
    James L Carroll*, LANL
    (1089-60-144)
  • 4:30 p.m.
    3D object reconstruction from a single radiogram -- outside of the Inverse Abel method.
    Hanna E. Makaruk*, Los Alamos National Laboratory
    (1089-68-226)
  • 5:00 p.m.
    3D effects in axisymmetric reconstructions: theory, simulation and experiment.
    Christopher Tomkins*, Los Alamos National Laboratory
    Hanna Makaruk, Los Alamos National Laboratory
    (1089-68-372)
  • 5:30 p.m.
    Quantum Computing with Majorana Fermions.
    Louis Hirsch Kauffman*, Math UIC, 851 South Morgan Street, Chicago, IL 60607-7045
    (1089-57-90)
• Saturday April 13, 2013, 3:00 p.m.-4:55 p.m.
  Session on AMS Contributed Paper Session, II
  Room 247, Hellems Arts and Sciences
  

  • 3:15 p.m.
    The 2D incompressible Boussinesq equation with vertical dissipation.
    Dhanapati Adhikari*, Marywood University
    (1089-35-72)
  • 3:30 p.m.
    Invariant Based Phylogenetic Reconstruction Algorithms.
    Joseph Rusinko*, Winthrop University
    Brian Hipp, Winthrop University
    (1089-92-20)
  • 3:45 p.m.
    Biological Implications of the Mathematical Properties of Ciliate Genome Decryption.
    Chris Anderson*, Lewis & Clark College
    Marion Scheepers, Boise State University
    Marlena Warner, University of Idaho
    Helen Wauck, Gustavus Adolphus College
    (1089-05-156)
  • 4:00 p.m.
    Mathematical Representations of Ciliate Genome Decryption.
    Chris Anderson, Lewis and Clark College
    Marion Scheepers, Boise State University
    Marlena Warner, University of Idaho
    Helen Wauck*, Gustavus Adolphus College
    (1089-05-132)
  • 4:15 p.m.
    A nonconvex method to find a subspace mean on a disjoint union of grassmann manifolds.
    Brent R Davis*, Colorado State University
    Daniel Bates, Colorado State University
    Chris Peterson, Colorado State University
    Michael Kirby, Colorado State University
    Justin Marks, Air Force Institute of Technology
    (1089-49-215)
  • 4:30 p.m.
    The Mathematics of Planet Earth in Schools.
    Kurt Kreith*, University of California at Davis
    (1089-97-13)
  • 4:45 p.m.
    Free De Morgan and Free Boole-De Morgan Algebras.
    Yuri Movsisyan*, Yerevan State University
    (1089-06-30)
• Saturday April 13, 2013, 6:30 p.m.-8:00 p.m.
  Departments of Mathematics and Applied Mathematics Reception
  Atrium, Koenig Alumni Center

Inquiries: meet@ams.org

---