AMS Sectional Meeting Program by Day
Current as of Sunday, October 23, 2011 00:29:39
Special Event or Lecture · Inquiries: meet@ams.org
2011 Fall Central Section Meeting
University of NebraskaLincoln, Lincoln, NE
October 1416, 2011 (Friday  Sunday)
Meeting #1074
Associate secretaries:
Georgia Benkart, AMS benkart@math.wisc.edu
Friday October 14, 2011

Friday October 14, 2011, 2:00 p.m.6:00 p.m.
Book sale and exhibit.
B13 Math Resource Room, Avery Hall 
Friday October 14, 2011, 2:00 p.m.6:00 p.m.
Sectional Meeting Registration.
Lobby Area  Level 0  Avery Hall, Avery Hall 
Friday October 14, 2011, 2:55 p.m.3:45 p.m.
Invited Address
Entropy theory for actions of sofic groups.
Room 115, Avery Hall
Lewis P. Bowen*, Texas A&M University
(10743701) 
Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Algorithmic and Geometric Properties of Groups and Semigroups, I
Room 119, Avery Hall
Organizers:
Susan Hermiller, University of NebraskaLincoln shermiller2@math.unl.edu
John Meakin, University of NebraskaLincoln

4:00 p.m.
Cayley automatic groups are not necessarily Cayley biautomatic.
Alexei Miasnikov, Stevens Institute of Technology
Zoran Sunic*, Texas A&M Univerrsity
(107420105) 
4:30 p.m.
Using Composition Trees for calculations with groups.
Alexander J Hulpke*, Colorado State University
(107420220) 
5:00 p.m.
A decade of using noncommutative groups in cryptography.
Delaram Kahrobaei*, City University of New York (CUNY Graduate Center and City Tech)
(107420107) 
5:30 p.m.
Complexity of Group Theoretic Algorithms.
Robert H Gilman*, Stevens Institute of Technology
(107420185)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Association Schemes and Related Topics, I
Room 108, Avery Hall
Organizers:
Sung Y. Song, Iowa State University sysong@iastate.edu
Paul Terwilliger, University of Wisconsin Madison

4:00 p.m.
Difference Sets and Association Schemes.
James A. Davis*, University of Richmond
(10740552) 
4:30 p.m.
Constructions of Vertex Transitive Directed Strongly Regular Graphs.
Oktay Olmez*, Iowa State University
(107400110) 
5:00 p.m.
Hypergroups.
PaulHermann Zieschang*, Department of Mathematics, University of Texas, Brownsville 78520 TX
(10742006) 
5:30 p.m.
On wreath products of $C$algebras, table algebras, and association schemes.
Bangteng Xu*, Eastern Kentucky University
(10740517)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Asymptotic Behavior and Regularity for Nonlinear Evolution Equations, I
Room 204, Burnett Hall
Organizers:
Petronela Radu, University of NebraskaLincoln pradu@math.unl.edu
Lorena Bociu, University of NebraskaLincoln

4:00 p.m.
A new approach to nonlocal advection.
Michael L Parks*, Sandia National Laboratories
(10746575) 
4:30 p.m.
Peridynamics as a Multiscale Material Model.
Pablo Seleson*, The University of Texas at Austin
(107474254) 
5:00 p.m.
Peridynamic transient heat flow in bodies with evolving discontinuities.
Florin Bobaru*, University of NebraskaLincoln
Monchai Duangpanya, University of NebraskaLincoln
(107480276) 
5:30 p.m.
Numerical Simulation of Nonlinear Peridynamic models.
Qiang Du, Department of Mathematics, Penn State University, University Park
Kun Zhou*, Department of Mathematics, Penn State University
(107400258)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Coding Theory, I
Room 110, Avery Hall
Organizers:
Christine Kelley, University of NebraskaLincoln ckelley2@math.unl.edu
Judy Walker, University of NebraskaLincoln

4:00 p.m.
Relative OneWeight Codes.
Jay A. Wood*, Western Michigan University
(107494118) 
4:30 p.m.
Efficient computations with Witt vectors.
Luis Finotti*, University of Tennessee
(10741141) 
5:00 p.m.
The Extension Theorem on Additive Codes over Finite Abelian Groups.
Xiaoyu Liu*, Wright State University
(107494222) 
5:30 p.m.
Equivalence and Duality for RankMetric and Matrix Codes.
Katherine Morrison*, University of Nebraska  Lincoln
(107494108)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Commutative Algebra, I
Room 107, Burnett Hall
Organizers:
Christina EubanksTurner, University of Louisiana at Lafayette ceturner@louisiana.edu
Aihua Li, Montclair State University

4:00 p.m.
The torsion free cancellation problem for the integral group ring $\mathbb{Z} D_{16}$.
Ryan Karr*, Jupiter, Florida
(107413209) 
4:30 p.m.
How do maximal CohenMacaulay modules behave over rings of infinite CohenMacaulay type?
Silvia Saccon*, The University of Arizona
Nicholas R. Baeth, University of Central Missouri
(107413198) 
5:00 p.m.
Factorization theory and decompositions of modules.
Nicholas R Baeth*, University of Central Missouri
(10741371) 
5:30 p.m.
Prime ideals in mixed polynomial and power series rings.
Ela Celikbas*, University of NebraskaLincoln
(107413269)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:45 p.m.
Special Session on Computational and Applied Mathematics, I
Room 124, Burnett Hall
Organizers:
Ludwig Kohaupt, Beuth University of Technology Berlin, Germany kohaupt@bhtberlin.de
Yan Wu, Georgia Southern University

4:00 p.m.
Optimal Bounds for dynamical technical systems of the formx2D9x=A(t)x+h(t,x)+g(t),x(t0)=x0 Basic ideas and open questions .
Ludwig Kohaupt*, Beuth University of Technology Berlin
(10740007) 
5:00 p.m.
Scale Invariant Kinetic Theory of Ideal Gas, Riemann Hypothesis,and Trisection Problem.
Siavash H Sohrab*, Northwestern University
(107400131)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Continuous and Numerical Analysis in the Control of PDE's, I
Room 203, Burnett Hall
Organizers:
George Avalos, University of NebraskaLincoln
Mohammad Rammaha, University of NebraskaLincoln
Daniel Toundykov, University of NebraskaLincoln dtoundykov2@unl.edu

4:00 p.m.
Studies of a model in Xray darkfield tomography.
Weimin Han*, Department of Mathematics, University of Iowa, Iowa City, IA 52242, USA
(10746535) 
4:30 p.m.
Linear stability analysis for traveling waves of second order in time PDE's.
Milena Stanislavova*, University of Kansas
Atanas Stefanov, University of Kansas
(107435241) 
5:00 p.m.
MultiDimensional Stability of Discrete Traveling Waves.
Erik S Van Vleck*, University of Kansas
(107435182) 
5:30 p.m.
Asymptotic behavior of a determining form for the 2D NavierStokes equations.
Ciprian Foias, Texas A&M University
Michael Jolly*, Indiana University
Rostyslav Kravchenko, University of Chicago
Edriss Titi, University of California Irvine, Weizmann Institute
(107435281)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Discrete Methods and Models in Biomathematics, I
Room 121, Burnett Hall
Organizers:
Dora Matache, University of NebraskaOmaha
Jim Rogers, University of NebraskaOmaha
Alan VelizCuba, University of NebraskaLincoln avelizcuba2@unl.edu

4:00 p.m.
Characterizing and Modeling the Microarchitecture of MotherofPearl.
Susan N Coppersmith*, Physics Department, University of WisconsinMadison
(107492270) 
4:30 p.m.
Strings, Trees, and RNA Folding.
Christine E Heitsch*, School of Mathematics, Georgia Institute of Technology
(107492252) 
5:00 p.m.
Reconstructing the parameters of a phylogenetic network from its treeaverage distances.
Stephen J Willson*, Iowa State University
(10749221) 
5:30 p.m.
Applications and Pitfalls of Structured Population Models in Ecology.
Brigitte Tenhumberg*, University of NebraskaLincoln
(107492129)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Dynamic Systems on Time Scales with Applications, I
Room 118, Burnett Hall
Organizers:
Lynn Erbe, University of NebraskaLincoln lerbe@math.unl.edu
Allan Peterson, University of NebraskaLincoln

4:00 p.m.
Time Scales Ostrowski and Grüss Type Inequalities involving Three Functions.
Elvan AkinBohner, Missouri S&T
Martin Bohner*, Missouri S&T
Thomas Matthews, Missouri S&T
(107434180) 
4:30 p.m.
Oscillation of Even Order Nonlinear Delay Dynamic Equations on Time Scales.
Raziye Mert*, Çankaya University, Department of Mathematics and Computer Science, 06530, Ankara,Turkey
Ağacık Zafer, Middle East Technical University, Department of Mathematics, 06531, Ankara, Turkey
(10743494) 
5:00 p.m.
Some results on the stability of the generalized exponential function on time scales.
Chris R Ahrendt*, University of WisconsinEau Claire
Kevin A Ahrendt, University of NebraskaLincoln
(10743996) 
5:30 p.m.
Almost oscillatory threedimensional dynamical systems.
Elvan Akin Bohner*, Missouri University S&T
Zuzana Dosla, Masaryk University Brno
Bonita Lawrence, Marshall University Huntington
(107437158)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Dynamical Systems and Operator Algebras, I
Room 119, Burnett Hall
Organizers:
Lewis Bowen, Texas A&M University lpbowen@math.tamu.edu
David Kerr, Texas A&M University

4:00 p.m.
Polynomial Odometers.
Sarah B Frick, Furman University
Nicholas S Ormes*, University of Denver
(107437314) 
4:30 p.m.
The variational principle for topological pressures of actions by sofic groups.
NhanPhu Chung*, Department of Mathematics, SUNY at Buffalo
(107437119) 
5:00 p.m.
Tilings without finite local complexity.
Lorenzo A Sadun*, University of Texas
(10743743) 
5:30 p.m.
Rigidity of Roe algebras.
Rufus Willett*, University of Hawaii
(10744791)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Extremal and Probabilistic Combinatorics, I
Room 118, Avery Hall
Organizers:
Stephen Hartke, University of NebraskaLincoln hartke@math.unl.edu
Jamie Radcliffe, University of NebraskaLincoln

4:00 p.m.
Hitting random set systems.
Anant Godbole*, East Tennessee State University (ETSU)
Jessie Deering, ETSU
William Jamieson, ETSU
Lucia Petito, University of Rochester
(10740544) 
4:30 p.m.
The maximum size of a Sidon set contained in a sparse random set of integers.
Yoshiharu Kohayakawa, IME, University of Sao Paulo
Sangjune Lee*, Department of Math and CS, Emory University
Vojtech Rodl, Department of Math and CS, Emory University
(10740536) 
5:00 p.m.
Identification of strategies for liartype games via discrepancy from their linear approximations.
Joshua N. Cooper, University of South Carolina
Robert B. Ellis*, Illinois Institute of Technology
Daniel Tietzer, Illinois Institute of Technology
James Williamson, Illinois Institute of Technology
(107405271) 
5:30 p.m.
Cops and Robbers on Geometric Graphs.
Andrew Beveridge*, Macalester College
Andrzej Dudek, Western Michigan University
Alan Frieze, Carnegie Mellon University
Tobias Mueller, Centrum voor Wiskunde en Informatica
(107405227)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Invariants in Knot Theory and Lowdimensional Topology, I
Room 109, Avery Hall
Organizers:
Mark Brittenham, University of NebraskaLincoln mbrittenham2@math.unl.edu
Robert Todd, University of NebraskaOmaha rtodd@unomaha.edu

4:00 p.m.
Width is not additive.
Ryan Blair, University of Pennsylvania
Maggy Tomova*, The University of Iowa
(107457242) 
4:30 p.m.
A categorification of the Tutte polynomial.
Moshe Cohen, BarIlan University
Adam Lowrance*, University of Iowa
(107457196) 
5:00 p.m.
Rightveering automorphisms of surfaces and overtwisted contact structures.
Rachel Roberts*, Washington University in St Louis
William H. Kazez, University of Georgia
(107457224) 
5:30 p.m.
Cosmetic surgery on links and the link volume of hyperbolic 3manifolds.
Yo'av Rieck*, University of Arkansas
Yasushi Yamashita, Nara Women's University
(107457151)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Local Commutative Algebra, I
Room 103, Burnett Hall
Organizers:
H. Ananthnarayan, University of NebraskaLincoln ahariharan2@math.unl.edu
Inês B. Henriques, University of California Riverside
Hamid Rahmati, Syracuse University

4:00 p.m.
Bounds on the first Hilbert coefficient.
Craig Huneke*, University of Kansas
Krishna Hanumanthu, Chennai Mathematical Institute
(10741357) 
4:30 p.m.
Graded CohenMacaulayness for rings graded by arbitrary abelian groups.
Brian Johnson*, University of NebraskaLincoln
(107413244) 
5:00 p.m.
Regularity and Gorensteinness of fiber cone.
Jayanthan V Aryampilly*, Indian Institute of Technology Madras, INDIA.
(107413117) 
5:30 p.m.
Some relations between countable CohenMacaulay representation type and superstreched.
Branden Stone*, University of Kansas
(107413316)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:45 p.m.
Special Session on Quantum Groups and Representation Theory, I
Room 111, Avery Hall
Organizers:
Jonathan Kujawa, University of Oklahoma kujawa@ou.edu
Natasha Rozhkovskaya, Kansas State University

4:00 p.m.
Representations of quantum affine groups.
Evgeny Mukhin*, Indiana University Purdue University Indianapolis
(107422164) 
5:00 p.m.
Capellitype identities and duality of Bethe algebras.
Vitaly Tarasov*, Department of Mathematical Sciences, Indiana University  Purdue University Indianapolis
(107417266)

4:00 p.m.

Friday October 14, 2011, 4:00 p.m.5:50 p.m.
Special Session on Recent Progress in Operator Algebras, I
Room 120, Burnett Hall
Organizers:
Allan P. Donsig, University of NebraskaLincoln adonsig1@unl.edu
David R. Pitts, University of NebraskaLincoln

4:00 p.m.
Invariants for operator algebras of topological dynamics (Preliminary Report).
Benton L Duncan*, North Dakota State University
(10744654) 
4:30 p.m.
Spectral triples for equicontinuous actions and metrics on state spaces.
Kamran Reihani*, Department of Mathematics, University of Kansas
(10744658) 
5:00 p.m.
Pseudo Diagonals of C*Algebras.
Gabriel Nagy, Kansas State University
Sarah A Reznikoff*, Kansas State University
(107446333) 
5:30 p.m.
Operator algebras from abelian semigroup actions.
Justin R Peters*, Iowa State University
(107447186)

4:00 p.m.

Friday October 14, 2011, 5:00 p.m.5:50 p.m.
Special Session on Matrices and Graphs, I
Room 112, Avery Hall
Organizers:
InJae Kim, Minnesota State University injae.kim@mnsu.edu
Adam Berliner, St. Olaf College
Leslie Hogben, Iowa State University
Bryan Shader, University of Wyoming

5:00 p.m.
Positive semidefinite maximum nullity is equal to positive semidefinite zero forcing number for partial $2$trees.
Jason Ekstrand, Department of Mathematics, Iowa State University
Craig Erickson*, Department of Mathematics, Iowa State University
Diana Hay, Department of Mathematics, Iowa State University
Leslie Hogben, Department of Mathematics, Iowa State University
Jolie Roat, Department of Mathematics, Iowa State University
(107405153) 
5:30 p.m.
Positive Semidefinite Zero Forcing.
Travis A. Peters*, Iowa State University
(10741564)

5:00 p.m.

Friday October 14, 2011, 8:30 p.m.9:30 p.m.
Graduate Student Poster Session
Ballroom, Downtown Holiday Inn
Inquiries: meet@ams.org