AMS Sectional Meeting Program by Day
Current as of Sunday, October 30, 2011 00:27:59
Inquiries: meet@ams.org
2011 Fall Western Section Meeting
University of Utah, Salt Lake City, UT
October 2223, 2011 (Saturday  Sunday)
Meeting #1075
Associate secretaries:
Michel L Lapidus, AMS lapidus@math.ucr.edu, lapidus@mathserv.ucr.edu
Sunday October 23, 2011

Sunday October 23, 2011, 7:30 a.m.12:00 p.m.
Book Sale and Exhibit
Room 228, JWB John Widtsoe Building 
Sunday October 23, 2011, 7:30 a.m.12:00 p.m.
Meeting Registration
Mathematics Department Office Room 233, JWB John Widtsoe Building 
Sunday October 23, 2011, 8:00 a.m.10:20 a.m.
Special Session on Applied Analysis, III
Room 310, JTB James Talmage Building
Organizers:
Marian Bocea, Loyola University Chicago mbocea@luc.edu
Mihai Mihailescu, University of Craiova Romania mmihailes@yahoo.com

8:00 a.m.
A CaffarelliKohnNirenberg inequality in OrliczSobolev spaces and applications.
Marian Bocea*, Loyola University Chicago
(107535244) 
8:30 a.m.
A variational approximation scheme for radial polyconvex elasticity that excludes interpenetration of matter.
Alexey Miroshnikov*, University of Maryland, College Park, Department of Mathematics
Athanasios Tzavaras, University of Crete, Department of Applied Mathematics
(10757413) 
9:00 a.m.
A maximum principle connected with eigenvalue problems involving variable exponents.
Mihai Mihailescu*, University of Craiova
(107535152) 
9:30 a.m.
A variational characterization of the effective yield set for ionic polycrystals.
Farhod Abdullayev*, North Dakota State University
(107549157) 
10:00 a.m.
Exploring submoment sequences and solutions to submoment problems.
Saroj Aryal*, University of Wyoming, Laramie, WY 82072
Farhad Jafari, University of Wyoming, Laramie, WY 82072
(10754615)

8:00 a.m.

Sunday October 23, 2011, 8:00 a.m.10:50 a.m.
Special Session on Category Theory in Graphs, Geometry and Inverse Problems, III
Room 310, AEB Alfred Emery Building
Organizers:
Robert Owczarek, Enfitec, Inc. owczarek@hughes.net
Hanna Makaruk, Los Alamos National Laboratory NM

8:00 a.m.
Computability theoretic complexity of isomorphisms of countable structures.
Valentina Harizanov*, George Washington University
(107503153) 
8:30 a.m.
Complete Coverage Probability Via Homology.
Rafal Komendarczyk, Tulane University
Jeff Pullen*, Tulane University
(107555110) 
9:00 a.m.
Third Power Association In Finite semifields.
G. P. Wene*, Department of Mathematics, The University of Texas at San Antonio, One UTSA Circle,San Antonio, Texas 782490624
(107517245) 
9:30 a.m.
Graphs and nonassociative algebra.
Liudmila Sabinina*, Universidad Autonoma del Estado de Morelos, Mexico
(107520181) 
10:00 a.m.
Generalized Bruck loops related to nongyrocommutative gyrogroups and generalized symmetric spaces as the underlying geometry.
Larissa Sbitneva*, Universidad Autonoma del Estado de Morelos
(107508189) 
10:30 a.m.
The spinor structure of the Apollonian disk packing.
Jerzy Kocik*, Department of Mathematics, Southern Illinois University at Carbondale
(107551200)

8:00 a.m.

Sunday October 23, 2011, 8:00 a.m.10:40 a.m.
Special Session on Celestial and Geometric Mechanics, III
Room 208, JWB John Widtsoe Building
Organizers:
Lennard Bakker, Brigham Young University bakker@math.byu.edu
Tiancheng Ouyang, Brigham Young University

8:00 a.m.
A Simple Existence Proof of the Schubart Periodic Orbit with Arbitrary Masses.
Duokui Yan*, Beihang University, Beijing, China
(107537208) 
9:00 a.m.
Reinterpretation of regularization of collisions through real algebraic geometry.
Lennard F Bakker*, Brigham Young University
(107570174) 
10:00 a.m.
Relative equilibria in the four vortex problem with two pairs of equal vorticities.
Manuele Santoprete*, Wilfrid Laurier University
Marshall Hampton, University of Minnesota, Duluth
Gareth Roberts, College of the Holy Cross
(10757028)

8:00 a.m.

Sunday October 23, 2011, 8:00 a.m.10:50 a.m.
Special Session on Commutative Algebra, III
Room 320, AEB Alfred Emery Building
Organizers:
ChinYi Jean Chan, Central Michigan University chan1cj@cmich.edu
Lance E. Miller, University of Utah lmiller@math.utah.edu
Anurag K. Singh, University of Utah singh@math.utah.edu

8:00 a.m.
A generalization of Lyubeznik numbers.
Luis NúñezBetancourt, University of Michigan
Emily E. Witt*, University of Minnesota
(107513230) 
8:30 a.m.
Valuation semigroups of two dimensional local rings.
Vinh An Pham*, University of MissouriColumbia
Steven Dale Cutkosky, University of MissouriColumbia
(107513168) 
9:00 a.m.
Minimal primes of ideals arising from conditional independence statements.
Amelia Taylor*, Colorado College
Irena Swanson, Reed College
(107513113) 
9:30 a.m.
2 x 2 permanental ideals of hypermatrices.
Julia Porcino, University of Oregon, Eugene, Oregon
Irena Swanson*, Reed College, Portland, Oregon
(107513112) 
10:00 a.m.
On $F$purity at the $F$pure threshold.
Daniel J Hernández*, University of Minnesota
(107513235) 
10:30 a.m.
Minimal reductions and balanced ideals.
Louiza Fouli*, New Mexico State University
(107513147)

8:00 a.m.

Sunday October 23, 2011, 8:00 a.m.10:50 a.m.
Special Session on Computational and Algorithmic Algebraic Geometry, III
Room 340, AEB Alfred Emery Building
Organizers:
Zach Teitler, Boise State University zteitler@boisestate.edu
Jim Wolper, Idaho State University wolpjame@isu.edu

8:00 a.m.
Tensor complexes.
Christine Berkesch*, Duke University
Daniel Erman, University of Michigan
Manoj Kummini, Chennai Mathematical Institute
Steven V Sam, Massachusetts Institute of Technology
(10751345) 
8:30 a.m.
Toward a salmon conjecture.
Luke Oeding*, University of California, Berkeley
Daniel J Bates, Colorado State Univesity
(10751495) 
9:00 a.m.
New examples of defective secant varieties of SegreVeronese varieties.
Hirotachi Abo*, University of Idaho
Maria Chiara Brambilla, UniversitÃ Politecnica delle Marche
(10751475) 
9:30 a.m.
Strong nonnegativity and sums of squares.
Mohamed Omar*, UC Davis & Caltech
Brian Osserman, UC Davis
(107514202) 
10:00 a.m.
Constructing Markov bases for hypergraphs.
Sonja Petrovic*, The Pennsylvania State University
(107513217) 
10:30 a.m.
Computing integral asymptotics using toric blowups of ideals.
Shaowei Lin*, University of California, Berkeley
(107514234)

8:00 a.m.

Sunday October 23, 2011, 8:00 a.m.10:40 a.m.
Special Session on Electromagnetic Wave Propagation in Complex and Random Environments, II
Room 140, JTB James Talmage Building
Organizers:
David Dobson, University of Utah
Peijun Li, Purdue University lipeijun@math.purdue.edu

8:00 a.m.
Matrix Pade approximants of the spectral function of composites.
Elena Cherkaev*, University of Utah, Department of Mathematics
(107565231) 
8:30 a.m.
A coupled BEM and FEM for the interior transmission problem.
George Hsiao, University of Delaware
Fengshan Liu, Delaware State University
Jiguang Sun*, Delaware State University
Liwei Xu, Rensselaer Polytechnic Institute
(10756581) 
9:00 a.m.
Active exterior cloaking for the Helmholtz equation.
Fernando Guevara Vasquez*, Mathematics Department, University of Utah
Graeme W. Milton, Mathematics Department, University of Utah
Daniel Onofrei, Mathematics Department, University of Houston
(10753576) 
9:30 a.m.
On hpadaptive finite element methods for timeharmonic Maxwell's equations.
X. Jiang, Academy of Mathematics and Systems Science, Chinese Academy of Sciences
L. Zhang, Academy of Mathematics and Systems Science, Chinese Academy of Sciences
W. Zheng*, Academy of Mathematics and Systems Science, Chinese Academy of Sciences
(10756583) 
10:00 a.m.
Sea ice and the climate system.
Kenneth M. Golden*, University of Utah, Department of Mathematics
(107586213)

8:00 a.m.

Sunday October 23, 2011, 8:00 a.m.10:40 a.m.
Special Session on Geometric Evolution Equations and Related Topics, III
Room 215, LCB LeRoy Cowles Building
Organizers:
Andrejs Treibergs, University of Utah Salt Lake City treiberg@math.utah.edu
Lei Ni, University of California San Diego lni@mathl.ucsd.edu
Brett Kotschwar, Arizona State University kotschwar@math.mit.edu

8:00 a.m.
A fully nonlinear flow equation on the sphere and AlexandrovFenchel inequalities.
Pengfei Guan, McGill University
Junfang Li*, University of Alabama at Birmingham
(107535163) 
9:00 a.m.
Gradient Ricci solitons.
Ovidiu Munteanu*, Columbia University
(10755325) 
10:00 a.m.
Flows to find (approximate) Riemann mappings.
David Alan Glickenstein*, University of Arizona
(10755162)

8:00 a.m.

Sunday October 23, 2011, 8:00 a.m.10:50 a.m.
Special Session on Geometric, Combinatorial, and Computational Group Theory, II
Room 350, AEB Alfred Emery Building
Organizers:
Eric Freden, Southern Utah University freden@suu.edu
Eric Swenson, Brigham Young University

8:00 a.m.
The fundamental group at infinity.
Ross Geoghegan*, Binghamton University (SUNY Binghamton)
(107520223) 
8:30 a.m.
A decade of using noncommutative groups in cryptography.
Delaram Kahrobaei*, City University of New York, CUNY Graduate Center and City Tech
(10752085) 
9:00 a.m.
Some open questions on fundamental groups of lowdimensional wild spaces.
Gregory R Conner*, Brigham Young University Department of Mathematics
(107555214) 
9:30 a.m.
Schreier graphs and Schreier dynamical system of the action of Thompson's group $F$ on the Cantor set.
Dmytro M Savchuk*, Binghamton University
(107520212) 
10:00 a.m.
On hyperbolic surface subgroups in rightangled Artin groups.
Robert W Bell*, Michigan State University
(107520162) 
10:30 a.m.
Conjectural normal form for elements of Coxeter groups.
Tom Edgar*, Pacific Lutheran University
(10752091)

8:00 a.m.

Sunday October 23, 2011, 8:00 a.m.10:40 a.m.
Special Session on Harmonic Analysis and Dispersive Partial Differential Equations, III
Room 320, JTB James Talmage Building
Organizers:
Xiaoyi Zhang, University of Iowa xiaozhang@math.uiowa.edu
Monica Visan, University of California Los Angeles
Betsy Stovall, University of California Los Angeles

8:00 a.m.
Variations on the CarlesonHunt theorem.
Richard L Oberlin*, Louisiana State University
(107542135) 
9:00 a.m.
A variable coefficient Wolff circular maximal function.
Joshua Zahl*, UCLA
(10754250) 
10:00 a.m.
Fractional Poincare and logarithmic Sobolev inequalities for measure spaces.
Philip T Gressman*, University of Pennsylvania
(10752843)

8:00 a.m.

Sunday October 23, 2011, 8:00 a.m.10:40 a.m.
Special Session on Hypergeometric Functions and Differential Equations, III
Room 323, LCB LeRoy Cowles Building
Organizers:
Laura F. Matusevich, Texas A&M University laura@math.tamu.edu
Christine Berkesch, Stockholm University cberkesc@math.su.se

8:00 a.m.
Discussion 
9:00 a.m.
Discriminant coamoebas in dimension 2 via homology.
Frank Sottile*, Texas A&M University
Mikael Passare, Stockholms Universitet
(107514201) 
10:00 a.m.
Discriminant Coamoebas.
Mounir Nisse*, Texas A&M University
Maurice Rojas, Texas A&M University
Korben Rusek, Texas A&M University
(10751489)

8:00 a.m.

Sunday October 23, 2011, 8:00 a.m.10:50 a.m.
Special Session on Noncommutative Geometry and Algebra, III
Room 225, LCB LeRoy Cowles Building
Organizers:
Kenneth R. Goodearl, University of California Santa Barbara goodearl@math.ucsb.edu
Milen Yakimov, Louisiana State University yakimov@math.lsu.edu

8:00 a.m.
Derived representation schemes and cyclic homology.
Yuri Berest*, Cornell University
Ajay Ramadoss, ETH, Zurich
(107518221) 
8:30 a.m.
A geometric realization of noncommutative resolutions.
Charlie R. Beil*, Simons Center for Geometry and Physics, Stony Brook University
(107514203) 
9:00 a.m.
Irreducible components of module varieties.
Birge HuisgenZimmermann*, University of California, Santa Barbara
Kenneth R. Goodearl, University of California, Santa Barbara
(10751684) 
9:30 a.m.
Nonsplit module extensions over the algebra of onesided inverse of $k[x]$.
Linhong Wang*, Southeastern Louisiana University
(10751664) 
10:00 a.m.
Skein algebras of marked surfaces.
Gregory P Muller*, Louisiana State University
(107516187) 
10:30 a.m.
$\mathbb{Z}$graded simple algebras.
Daniel Rogalski*, UCSD
Jason Bell, Simon Fraser University
(107516171)

8:00 a.m.

Sunday October 23, 2011, 8:00 a.m.10:50 a.m.
Special Session on Reductive Groups and Hecke Algebras, III
Room 219, LCB LeRoy Cowles Building
Organizers:
Dan Ciubotaru, University of Utah ciubo@math.utah.edu
Cathy Kriloff, Idaho State University krilcath@isu.edu
Peter Trapa, University of Utah ptrapa@math.utah.edu

8:00 a.m.
Unitary Principal Series of $SO(n+1,n)$.
Annegret Paul*, Western Michigan University
(107522215) 
8:30 a.m.
Geometry and unitarity.
Dragan Milicic*, Department of Mathematics, University of Utah
(107522226) 
9:00 a.m.
Representations of the degenerate affine HeckeClifford superalgebra.
David Hill, University of Virginia
Jonathan Kujawa*, University of Oklahoma
Joshua Sussan, Max Planck Institute for Mathematics
(107516115) 
9:30 a.m.
Graded Hecke algebras and reflection length versus codimension.
Briana FosterGreenwood*, University of North Texas
(107505164) 
10:00 a.m.
Lefschetz functors for the metaplectic group.
B Trahan*, University of Utah
(107522160) 
10:30 a.m.
Unipotent representations for Sp(p,q) and O*(n).
Dan Barbasch*, Department of Mathematics, Cornell University
Peter Trapa, Department of Mathematics, University of Utah
(10752232)

8:00 a.m.

Sunday October 23, 2011, 9:00 a.m.10:40 a.m.
Special Session on Algebraic Geometry, III
Room 121, LCB LeRoy Cowles Building
Organizers:
Tommaso de Fernex, University of Utah defernex@math.utah.edu
Christopher Hacon, University of Utah hacon@math.utah.edu

9:00 a.m.
Finiteness of K3 surfaces and the Tate conjecture.
Max Lieblich*, University of Washington
Davesh Maulik, Columbia University
Andrew Snowden, MIT
(10751436) 
10:00 a.m.
Jacobian discrepancies and rational singularities.
Tommaso de Fernex, University of Utah
Roi Docampo*, University of Utah
(10751490)

9:00 a.m.

Sunday October 23, 2011, 9:00 a.m.10:50 a.m.
Special Session on Nonlinear Waves, III
Room 110, JTB James Talmage Building
Organizers:
ZhiQiang Wang, Utah State University ZhiQiang.Wang@usu.edu
Nghiem Nguyen, Utah State University nghiem.nguyen@usu.edu

9:00 a.m.
A dualPetrovGalerkin method for extended fifthorder Kortewegde Vries type equations.
Netra P Khanal*, The University of Tampa
(10753596) 
9:30 a.m.
Small solutions of nonlinear Schrödinger equations near first excited states.
Kenji Nakanishi, Kyoto Univeristy
Tuoc Van Phan*, UNIVERISTY OF TENNESSEE
TaiPeng Tsai, UNIVERSITY OF BRITISH COLUMBIA
(10753542) 
10:00 a.m.
Multiple Solitary Wave Solutions of Nonlinear Schrödinger Systems.
Rushun Tian*, Utah State University
ZhiQiang Wang, Utah State University
(107535125) 
10:30 a.m.
Orbital stability of solitary waves of a 3coupled nonlinear Schrödinger system.
Nghiem V. Nguyen*, Utah State University
ZhiQiang Wang, Utah State University
(10753568)

9:00 a.m.

Sunday October 23, 2011, 11:10 a.m.12:00 p.m.
Invited Address
The future of combinatorial bijections.
Room 335, JWB John Widtsoe Building
Igor Pak*, University of California Los Angeles
(10750503) 
Sunday October 23, 2011, 2:00 p.m.2:50 p.m.
Invited Address
Gap theorems on Kähler manifolds.
Room 335, JWB John Widtsoe Building
Lei Ni*, University of California San Diego
(10755304) 
Sunday October 23, 2011, 3:00 p.m.5:20 p.m.
Special Session on Category Theory in Graphs, Geometry and Inverse Problems, IV
Room 310, AEB Alfred Emery Building
Organizers:
Robert Owczarek, Enfitec, Inc. owczarek@hughes.net
Hanna Makaruk, Los Alamos National Laboratory NM

3:00 p.m.
Category theory for inferring the shape of a light source from an optimized model of its shadow.
Brian G Stafford*, Los Alamos National Laboratory, Los Alamos,NM
(107568218) 
3:30 p.m.
Turning Bayesian model averaging into Bayesian model combination.
James L Carroll*, LANL
(107560101) 
4:00 p.m.
Reconstructing tilted, axissymmetric objects from radiographs.
Thomas A Beery*, Los Alamos National Laboratory
(107562104) 
4:30 p.m.
Generalization of inverse Abel transform for shifted reconstruction axis.
Hanna E Makaruk*, Los Alamos National Laboratory, Los Alamos, NM
Robert M. Owczarek, Enfitek Inc.
(10756818) 
5:00 p.m.
Discussion

3:00 p.m.

Sunday October 23, 2011, 3:00 p.m.5:40 p.m.
Special Session on Celestial and Geometric Mechanics, IV
Room 208, JWB John Widtsoe Building
Organizers:
Lennard Bakker, Brigham Young University bakker@math.byu.edu
Tiancheng Ouyang, Brigham Young University

3:00 p.m.
Symmetric mechanical systems with configuration space isotropy.
Cristina Stoica*, Wlifrid Laurier University, Canada
(107570192) 
4:00 p.m.
Simultaneous binary collisions for the collinear fourbody problem.
Tiancheng Ouyang*, Department of Mathematics, Brigham Young University, Provo, Utah 84602, USA
Duokui Yan, School of Mathematics and System Sciences , Beihong University, Beijing, China
(107537185) 
5:00 p.m.
Discussion

3:00 p.m.

Sunday October 23, 2011, 3:00 p.m.5:50 p.m.
Special Session on Commutative Algebra, IV
Room 320, AEB Alfred Emery Building
Organizers:
ChinYi Jean Chan, Central Michigan University chan1cj@cmich.edu
Lance E. Miller, University of Utah lmiller@math.utah.edu
Anurag K. Singh, University of Utah singh@math.utah.edu

3:00 p.m.
Normal NonCohenMacaulay Rings.
Paul C Roberts*, University of Utah
(10751356) 
3:30 p.m.
Graded $F$modules and local cohomology.
Yi Zhang*, University of Minnesota
(107513167) 
4:00 p.m.
Target elements and test ideals.
Mel Hochster, University of Michigan
Wenliang Zhang*, University of Michigan
(107513194) 
4:30 p.m.
Test ideals via a single alteration and discreteness and rationality of $F$jumping numbers.
Karl Schwede, The Pennsylvania State University
Kevin Tucker*, Princeton University
Wenliang Zhang, University of Michigan
(107513186) 
5:00 p.m.
Cartier modules on toric varieties.
JenChieh Hsiao, Purdue University
Karl Schwede*, The Pennsylvania State University
Wenliang Zhang, University of Michigan
(10751341) 
5:30 p.m.
Expected dimension versus actual dimension.
Sandra Spiroff*, University of Mississippi
(107513176)

3:00 p.m.

Sunday October 23, 2011, 3:00 p.m.4:50 p.m.
Special Session on Computational and Algorithmic Algebraic Geometry, IV
Room 340, AEB Alfred Emery Building
Organizers:
Zach Teitler, Boise State University zteitler@boisestate.edu
Jim Wolper, Idaho State University wolpjame@isu.edu

3:00 p.m.
Certifying solutions to systems of polynomialexponential equations.
Jonathan D Hauenstein*, Texas A&M University
Viktor Levandovskyy, RWTH Aachen University
(10756567) 
3:30 p.m.
Some computational problems using Riemann Theta functions in sage.
Chris Swierczewski*, University of Washington, Department of Applied Mathematics
(107514198) 
4:00 p.m.
A numericalsymbolic algorithm for computing the geometric genus of a curve.
Dan Bates*, Colorado State University
Chris Peterson, Colorado State University
Andrew Sommese, University of Notre Dame
Charles Wampler, General Motors Research and Development
(107514134) 
4:30 p.m.
Chern numbers of algebraic varieties.
Dan Bates, Department of Mathematics, Colorado State University
David Eklund, Dept of Mathematics, KTH, Stockholm, Sweden
Chris Peterson*, Dept of Mathematics, Colorado State University, Fort Collins, Colorado
(107514184)

3:00 p.m.

Sunday October 23, 2011, 3:00 p.m.5:40 p.m.
Special Session on Geometric Evolution Equations and Related Topics, IV
Room 215, LCB LeRoy Cowles Building
Organizers:
Andrejs Treibergs, University of Utah Salt Lake City treiberg@math.utah.edu
Lei Ni, University of California San Diego lni@mathl.ucsd.edu
Brett Kotschwar, Arizona State University kotschwar@math.mit.edu

3:00 p.m.
Anisotropic Surface Energy.
Bennett Palmer*, Idaho State University
(10755380) 
4:00 p.m.
On potential function of gradient steady Ricci solitons.
Peng Wu*, University of California, Santa Barbara.
(10755324) 
5:00 p.m.
The Dirichlet problem for the curve shortening flow in convex domains.
Paul T. Allen*, Lewis & Clark College
K Tsukahara, Lewis & Clark College
A Layne, University of Oregon
(10755314)

3:00 p.m.

Sunday October 23, 2011, 3:00 p.m.5:40 p.m.
Special Session on Harmonic Analysis and Dispersive Partial Differential Equations, IV
Room 320, JTB James Talmage Building
Organizers:
Xiaoyi Zhang, University of Iowa xiaozhang@math.uiowa.edu
Monica Visan, University of California Los Angeles
Betsy Stovall, University of California Los Angeles

3:00 p.m.
A quantitative Frobenius theorem.
Brian T Street*, University of WisconsinMadison
(10755166) 
4:00 p.m.
On finite time blowup solutions to certain nonlinear KleinGordon equations.
Rowan Killip, UCLA
Betsy Stovall*, UCLA
Monica Visan, UCLA
(107535179) 
5:00 p.m.
Conditional global regularity of Schrödinger maps: subthreshold dispersed energy.
Paul Smith*, UC Berkeley
(107535182)

3:00 p.m.
Inquiries: meet@ams.org