AMS Sectional Meeting Program by Day
Current as of Saturday, April 4, 2009 00:27:24
2009 Spring Central Sectional Meeting
Urbana, IL, March 2729, 2009 (Friday  Sunday)
Meeting #1047
Associate secretaries: Susan J Friedlander, AMS susan@math.northwestern.edu
Sunday March 29, 2009

Sunday March 29, 2009, 8:00 a.m.10:50 a.m.
Special Session on Algebra, Geometry and Combinatorics, III
Room 217, Noyes Lab
Organizers:
Rinat Kedem, University of Illinois at UrbanaChampaign rinat@uiuc.edu
Alexander T. Yong, University of Illinois at UrbanaChampaign ayong@uiuc.edu

8:00 a.m.
Fusion rings over finite fields.
Terry Gannon*, Math Dept, U of Alberta
(104713475) 
8:30 a.m.
Representations of double affine Lie algebras and finite groups.
Nicolas Guay*, University of Alberta
(10471763) 
9:00 a.m.
Total positivity in loop groups I: whirls and curls.
Pavlo Pylyavskyy*, University of Michigan
Thomas Lam, Harvard
(104705313) 
9:30 a.m.
The shifted plactic monoid.
Luis G Serrano*, University of Michigan
(10470597) 
10:00 a.m.
Bruhat order, smooth Schubert varieties, and hyperplane arrangements.
SuHo Oh*, Massachusetts Institute of Technology
Alexander Postnikov, Massachusetts Institute of Technology
Hwanchul Yoo, Massachusetts Institute of Technology
(104705407) 
10:30 a.m.
Presenting the cohomology of a Schubert variety.
Victor Reiner, University of Minnesota  Twin Cities
Alexander Woo*, Saint Olaf College
Alexander Yong, University of Illinois  UrbanaChampaign
(104705280)

8:00 a.m.

Sunday March 29, 2009, 8:00 a.m.12:30 p.m.
Special Session on Nonlinear Partial Differential Equations and Applications, III
room 241, Altgeld Hall
Organizers:
Igor Kukavica, University of Southern California kukavica@usc.edu
Anna L. Mazzucato, Pennsylvania State University mazzucat@math.psu.edu

8:00 a.m.
Stability of Periodic Traveling Wave Solutions of the Generalized Kortewegde Vries Equation.
Mathew A. Johnson*, University of Illinois at UrbanaChampaign
Jared C. Bronski, University of Illinois at Urbana Champaign
(104735269) 
8:30 a.m.
$C^*$algebra approach to spectral problems arising in hydrodynamics.
Roman Shvydkoy*, University of Illinois at Chicago
(104776488) 
9:00 a.m.
Behavior of solutions to the NavierStokes equations in the scaling invariant spaces.
Jean Bourgain, Institute for Advanced Study
Pierre Germain, Courant Institute of Mathematical Sciences
Natasa Pavlovic*, University of Texas at Austin
Gigliola Staffilani, Massachusetts Institute of Technology
(104735132) 
9:30 a.m.
Defect Eigenvalues and Diophantine Approximation.
Jared C Bronski*, University of Illinois
Zoi Rapti, University of Illinois
(104781447) 
10:00 a.m.
On a relation between Lyapunov exponents and the radius of analyticity.
A Cheskidov, University of Illinois, Chicago
M S Jolly*, Indiana University
E S Van Vleck, University of Kansas
(104735413) 
10:30 a.m.
Traveling fronts in disordered media.
Andrej Zlatos*, University of Chicago
(104735336) 
11:00 a.m.
New WellPosedness Results for the Equations of Stochastic Fluid Dynamics with Multiplicative Noise.
Nathan E. GlattHoltz*, Indiana University
(104735443) 
11:30 a.m.
The zero mode for the Primitive Equations.
Qingshan Chen*, Indiana University Bloomington
MingCheng Shiue, Indiana University Bloomington
Roger Temam, Indiana University Bloomington
(104735485) 
12:00 p.m.
Discussion

8:00 a.m.

Sunday March 29, 2009, 8:30 a.m.12:50 p.m.
Special Session on Geometric Function Theory and Analysis on Metric Spaces, IV
Room 447, Altgeld Hall
Organizers:
Sergiy Merenkov, University of Illinois at UrbanaChampaign merenkov@uiuc.edu
Jeremy Taylor Tyson, University of Illinois at UrbanaChampaign tyson@math.uiuc.edu
JangMei Wu, University of Illinois at UrbanaChampaign wu@math.uiuc.edu

8:30 a.m.
Astala's conjecture on Hausdorff measure distortion under planar quasiconformal mappings.
Michael T. Lacey, Georgia Institute of Technology
Eric T. Sawyer, McMaster University
Ignacio UriarteTuero*, Michigan State University ; Centre de Recerca Matemàtica (Barcelona, Spain)
(104730249) 
9:00 a.m.
Circlelike homeomorphisms and homogeneity at a point.
Melkana A Brakalova*, Fordham University
(104730297) 
9:30 a.m.
Rigidity of Derivations on the Plane and Applications.
Jasun Gong*, University of Pittsburgh
(104728411) 
10:00 a.m.
Comparison of BV Norms in Weighted Euclidean Spaces.
Chris Camfield*, Kenyon College
(104728425) 
10:30 a.m.
Break 
11:00 a.m.
Towards Uniform Rectifiability in a metric space setting.
Raanan Schul*, UCLA
(104728240) 
11:30 a.m.
On the dimension of measures.
Anna Vershynina*, University of California Davis
Qinglan Xia, University of California Davis
(10472875) 
12:00 p.m.
pHarmonic measure in simply connected domains.
John Lewis, Department of Mathematics, University of Kentucky
Kaj Nyström, Department of Mathematics, Umea University
Pietro PoggiCorradini*, Department of Mathematics, Kansas State University
(10473568) 
12:30 p.m.
An Asymptotic Mean Value Characterization for pharmonic functions.
Juan J Manfredi*, University of Pittsburgh
Mikko Parviainen, Helsinki University of Technology
Julio D Rossi, University of Buenos Aires/ Universidad Autonoma de Madrid
(104735136)

8:30 a.m.

Sunday March 29, 2009, 9:00 a.m.11:20 a.m.
Special Session on Complex Dynamics and Value Distribution, III
Room 441, Altgeld Hall
Organizers:
Aimo Hinkkanen, University of Illinois at UrbanaChampaign aimo@uiuc.edu
Joseph B. Miles, University of Illinois at UrbanaChampaign joe@math.uiuc.edu

9:00 a.m.
Univalence Criteria, Quasiconformal Mappings and Approximable Quasidisks.
NginTee Koh*, University of Illinois at UrbanaChampaign
(104730144) 
9:30 a.m.
Pinching Deformations of Rational Maps.
Robert W O'Connell*, Indiana UniversityBloomington
(10473726) 
10:00 a.m.
Julia (Limit) Sets in Curves.
David H Hamilton*, UMCP
(104730137) 
10:30 a.m.
Asymptotic distribution of eigenvalues of nonselfadjoint Schrödinger operators with polynomial potentials.
Kwang C. Shin*, University of West Georgia
(10474138) 
11:00 a.m.
Entire functions of the class $\mathcal{S}$ of irregular growth.
David Drasin*, Department of Mathematics, Purdue University, West Lafayette, IN 479072067
(104730326)

9:00 a.m.

Sunday March 29, 2009, 9:00 a.m.11:45 a.m.
Special Session on Topological Field Theories, Representation Theory, and Algebraic Geometry, IV
Room 347, Altgeld Hall
Organizers:
Thomas Nevins, University of Illinois at UrbanaChampaign nevins@uiuc.edu
David BenZvi, University of Texas at Austin benzvi@math.utexas.edu

9:00 a.m.
Localization for singular weights and finite Walgebras.
Kobi Kremnizer*, University of Chicago
(104722303) 
10:00 a.m.
The 2Lien of a 2Gerbe.
Prabhu Venkataraman*, Eureka College
(104714254) 
11:00 a.m.
Twisted Umkehr maps.
Matthew Ando*, University of Illinois at UrbanaChampaign
Andrew Blumberg, Stanford University
David Gepner, University of Illinois at Chicago
Hisham Sati, Yale University
(104755175)

9:00 a.m.

Sunday March 29, 2009, 9:00 a.m.12:20 p.m.
Special Session on Local and Homological Methods in Commutative Algebra, IV
Room 165, Noyes Lab
Organizers:
Florian Enescu, Georgia State University fenescu@gsu.edu
Sandra Spiroff, University of Mississippi spiroff@olemiss.edu

9:00 a.m.
A numerical criterion for tight closure of arbitrary ideals.
Neil Epstein*, University of Michigan
Yongwei Yao, Georgia State University
(104713442) 
9:30 a.m.
On the discreteness and rationality of $F$jumping coefficients.
Mordechai Katzman, University of Sheffield, UK
Gennady Lyubeznik*, University of Minnesota, USA
Wenliang Zhang, University of Michigan, USA
(104713193) 
10:00 a.m.
Discreteness and rationality of Fthresholds on rings with singularities.
Karl E. Schwede*, University of Michigan
Wenliang Zhang, University of Michigan
(104713161) 
10:30 a.m.
Some observations on rigidity of Frobenius endomorphism.
Jinjia Li*, Middle Tennessee State University
(104713380) 
11:00 a.m.
Socle degrees, Resolutions, and Frobenius powers.
Andrew R. Kustin*, University of South Carolina
(104713171) 
11:30 a.m.
Concerning limit HilbertKunz multiplicities.
Holger Brenner, University of Osnabrueck
Jinjia Li, Middle Tennessee State University
Claudia Miller*, Syracuse University
(104714325) 
12:00 p.m.
Uniform test exponents for rings of finite Frepresentation type.
Yongwei Yao*, Georgia State University
(104713135)

9:00 a.m.

Sunday March 29, 2009, 9:00 a.m.12:20 p.m.
Special Session on Differential Geometry and Its Applications, IV
Room 341, Altgeld Hall
Organizers:
Stephanie B. Alexander, University of Illinois at UrbanaChampaign stephanieb.alexander@gmail.com
Jianguo Cao, University of Notre Dame cao.7@nd.edu

9:00 a.m.
Compactness for manifolds with bounded volume and diameter.
Stefan Wenger*, University of Illinois at Chicago
(104753327) 
9:30 a.m.
A new proof to Perelman's collapsing theorem for geometrization of 3manifolds.
J. Cao, University of Notre Dame
Jian Ge*, University of Notre Dame
(104753128) 
10:00 a.m.
Positive curvature and eigenfunctions of the Laplacian.
Harold Gerard Donnelly*, Purdue University
(10475851) 
10:30 a.m.
On nonnegatively curved lowdimensional fixed point homogeneous Riemannian manifolds.
Fernando GalazGarcia*, University of Maryland, College Park
(104753120) 
11:00 a.m.
Yau's Conjecture on holomorphic functions of polynomial growth.
BingLong Chen, Zhongshan University, Guangzhou, P.R.C
XiaoYong Fu*, Zhongshan University, Guangzhou, P.R.C
Le Yin, Zhongshan University, Guangzhou, P.R.C
XiPing Zhu, Zhongshan University, Guangzhou, P.R.C
(104753186) 
11:30 a.m.
Liouvilletype Theorem in Alexandrov Spaces.
Bobo Hua*, Fudan University, China
(104758305) 
12:00 p.m.
Projectively Flat Metrics.
Zhongmin Shen*, Indiana UniversityPurdue University at Indianapolis
(104753200)

9:00 a.m.

Sunday March 29, 2009, 9:00 a.m.11:20 a.m.
Special Session on qSeries and Partitions, IV
Room 147, Altgeld Hall
Organizers:
Bruce Berndt, University of Illinois at UrbanaChampaign berndt@math.uiuc.edu
Ae Ja Yee, Pennsylvania State University yee@math.psu.edu

9:00 a.m.
Branching rules and qseries.
S. Ole Warnaar*, The University of Queensland, Australia
(104733340) 
9:30 a.m.
The negative qbinomial.
V. Reiner, School of Mathematics, University of Minnesota
D. Stanton*, School of Mathematics, University of Minnesota
(104705376) 
10:00 a.m.
The error term in Rademacher's formula for the partition function.
Amanda Folsom*, University of Wisconsin, Madison
Riad Masri, University of Wisconsin, Madison
(10471188) 
10:30 a.m.
Bijective proofs for some partition identities involving parity.
Sun Kim*, University of Illinois at UrbanaChampaign
(104705493) 
11:00 a.m.
1 mod $k $ lecture hall partition.
Jaebum Sohn*, Yonsei University
Pyo Lim, Seoul
(104711362)

9:00 a.m.

Sunday March 29, 2009, 9:00 a.m.12:20 p.m.
Special Session on The Logic and Combinatorics of Algebraic Structures, IV
Room 203, Noyes Lab
Organizers:
John Snow, Concordia University john.snow@cune.edu
Jeremy Alm, Illinois College alm.academic@gmail.com

9:00 a.m.
A StoneType Duality for Meet Semilattices.
Aditya K Nagrath*, University of Denver
(10470645) 
9:30 a.m.
Observations about perfect lattices.
Kira V Adaricheva*, Stern College for Women, Yeshiva University, New York
(104706306) 
10:00 a.m.
Lattices of theories in languages without equality.
J. B. Nation*, University of Hawaii
Tristan Holmes, University of Hawaii
Dayna Kitsuwa, University of Hawaii
Sheri Tamagawa, Roosevelt High School
(104706268) 
10:30 a.m.
Interpolation and Amalgamation for Ordered Algebraic Structures.
George Metcalfe*, Vanderbilt University
(10470641) 
11:00 a.m.
Subgroups of free idempotentgenerated semigroups.
John C. Meakin*, University of NebraskaLincoln
(104720189) 
11:30 a.m.
Comparing the complexity of hyperequivalent operations.
Jonathan D.H. Smith*, Department of Mathematics, Iowa State University
(104708146) 
12:00 p.m.
Constrained Eden: Algebras in parallel.
Steve Seif*, Mathematics Department, University of Louisville, Louisville, Kentucky 40292
(104708174)

9:00 a.m.

Sunday March 29, 2009, 9:00 a.m.11:50 a.m.
Special Session on Geometric Group Theory, IV
Room 445, Altgeld Hall
Organizers:
Sergei V. Ivanov, University of Illinois at UrbanaChampaign ivanov@math.uiuc.edu
Ilya Kapovich, University of Illinois at UrbanaChampaign kapovich@math.uiuc.edu
Igor Mineyev, University of Illinois at UrbanaChampaign mineyev@math.uiuc.edu
Paul E. Schupp, University of Illinois at UrbanaChampaign schupp@math.uiuc.edu

9:00 a.m.
Geometry of groups, random walks, and polynomial maps over finite fields.
Mark Sapir*, Vanderbilt University
(104720238) 
10:00 a.m.
Krull dimension for limit groups.
Larsen E Louder*, University of Michigan
(104720392) 
10:30 a.m.
Frobenius Problem and dead ends in integers.
Zoran Sunic*, Texas A&M University
(104720429) 
11:00 a.m.
Tame combings for groups.
Sean Cleary, The City College of New York
Susan Hermiller*, University of Nebraska
Melanie Stein, Trinity College
Jennifer Taback, Bowdoin College
(104720252) 
11:30 a.m.
Some quotients of Coxeter groups.
Tadeusz Januszkiewicz*, Ohio State University
(104720262)

9:00 a.m.

Sunday March 29, 2009, 9:00 a.m.12:20 p.m.
Special Session on Graph Theory, IV
Room 161, Noyes Lab
Organizers:
Alexander V. Kostochka, University of Illinois at UrbanaChampaign kostochk@math.uiuc.edu
Douglas B. West, University of Illinois at UrbanaChampaign west@math.uiuc.edu

9:00 a.m.
Cycle covers  minimal contra pairs, Petersen chain and Hamilton weights.
CunQuan Zhang*, West Virginia University
(104705190) 
9:30 a.m.
Cyclable sets of vertices in 3connected graphs.
Hao Li*, CNRS and Universite Parissud 11, France
Yan Zhu, Universite Parissud 11 and Shandong University
(104705281) 
10:00 a.m.
On $s$hamiltonian connected line graphs.
HongJian Lai*, West Virginia University
Yanting Liang, West Virginia University
Yehong Shao, Ohio University Southern
(104705213) 
10:30 a.m.
On Even Square of Hamilton Cycles.
Guantao Chen*, Georgia State University
Katsuhiro Ota, Keio University
Akita Saito, Nihon University
Yi Zhao, Gorgia State University
(104705141) 
11:00 a.m.
Symmetries of $(3,6)$fullerenes.
Mark Ellingham*, Vanderbilt University
Xiaoya Zha, Middle Tennessee State University
(104705320) 
11:30 a.m.
On the Chudnovsky, Seymour, and Sullivan's conjecture.
Molly Dunkum, Department of Mathematics and Computer Science, Western Kentucky University
Peter Hamburger*, Department of Mathematics and Computer Science, Western Kentucky University
Attila P{ó}r, Department of Mathematics and Computer Science, Western Kentucky University
(104705129) 
12:00 p.m.
Packing and covering tetrahedra.
Penny Haxell*, University of Waterloo
Subir Ghosh, Tata Institute of Fundamental Research
(104705354)

9:00 a.m.

Sunday March 29, 2009, 9:00 a.m.12:20 p.m.
Special Session on Probabilistic and Extremal Combinatorics, IV
Room 163, Noyes Lab
Organizers:
Jozsef Balogh, University of Illinois at UrbanaChampaign jobal@math.uiuc.edu
Zoltan Furedi, University of Illinois at UrbanaChampaign zfuredi@math.uiuc.edu

9:00 a.m.
On a Variant of van der Waerden's Theorem.
Sujith Vijay*, University of Illinois at UrbanaChampaign
(104705365) 
9:30 a.m.
Combinatorial problems from and for Horn formulas.
Marina Langlois, Univ. of Illinois at Chicago, Dept. Comp. Sci.
Dhruv Mubayi, Univ. of Illinois at Chicago, Dept. Math., Stat. and Comp.Sci.
Robert H. Sloan, Univ. of Illinois at Chicago, Dept. Comp. Sci.
Gyorgy Turan*, Univ. of Illinois at Chicago, Dept. Math., Stat. and Comp.Sci.
(104705278) 
10:00 a.m.
Turán type problems and polychromatic colorings on the hypercube.
David Offner*, Carnegie Mellon University
(104705366) 
10:30 a.m.
Graphs with four boundary vertices and the Frame of a graph.
Attila Por*, Western Kentucky University
Tobias Muller, School of Mathematical Sciences, Sackler Faculty of Exact Sciences, Tel Aviv University
JeanSebastian Sereni, CNRS (LIAFA, Universite Denis Diderot), Paris
(104705397) 
11:00 a.m.
On colorings avoiding both monochromatic and rainbow subgraphs.
Maria Axenovich*, Department of Mathematics, Iowa State University
JiHyeok Choi, Iowa State University
Perry Iverson, Iowa State University
(104705273) 
11:30 a.m.
Diameter of random spanning trees in a given graph.
Fan Chung, University of California, San Diego
Paul Horn, University of California, San Diego
Linyuan Lu*, University of South Carolina
(104705374) 
12:00 p.m.
Thuetype games and highly nonrepetitive sequences.
Wesley Pegden*, Department of Mathematics, Rutgers University (New Brunswick)
(10470539)

9:00 a.m.

Sunday March 29, 2009, 9:00 a.m.12:25 p.m.
Special Session on Holomorphic and CR Mappings, IV
Room 343, Altgeld Hall
Organizers:
John P. D'Angelo, University of Illinois at UrbanaChampaign jpda@math.uiuc.edu
Jiri Lebl, University of Illinois at UrbanaChampaign jlebl@math.uiuc.edu
Alex Tumanov, University of Illinois at UrbanaChampaign tumanov@math.uiuc.edu

9:00 a.m.
CR functions on subanalytic hypersurfaces.
Debraj Chakrabarti*, University of Notre Dame
Rasul Shafikov, University of Western Ontario
(10473292) 
9:30 a.m.
On the (non)extendability of germs of CR functions.
Anna Siano*, University of MIchigan
(104732472) 
10:00 a.m.
Discussion 
10:30 a.m.
Attracting Basins for Sequences of Uniformly Attracting Automorphisms.
Han Peters*, Stony Brook University.
(104732358) 
11:00 a.m.
Discussion 
11:30 a.m.
Discussion 
12:00 p.m.
Discussion

9:00 a.m.

Sunday March 29, 2009, 9:30 a.m.11:50 a.m.
Special Session on Topological Dynamics and Ergodic Theory, IV
Room 345, Altgeld Hall
Organizers:
Alica Miller, University of Louisville amiller@erdos.math.louisville.edu
Joseph Rosenblatt, University of Illinois at UrbanaChampaign rosnbltt@math.uiuc.edu

9:30 a.m.
The Eulerian adic dynamical system.
Karl Petersen*, University of North Carolina at Chapel Hill
Alexander Varchenko, University of North Carolina at Chapel Hill
(104737495) 
10:30 a.m.
Endomorphisms of Certain Dynamical Systems.
Jeanette Olli*, University of North Carolina at Chapel Hill
(104737184) 
11:00 a.m.
Directional recurrence for nonsingular actions of $\mathbb Z^d$.
Aimee S. A. Johnson, Swarthmore College
Daniel J Rudolph, Colorado State University
Ayse A. Sahin*, DePaul University
(104737372) 
11:30 a.m.
Generalized Gausstype interval maps.
Ilie Ugarcovici*, DePaul University
(104737388)

9:30 a.m.

Sunday March 29, 2009, 9:30 a.m.11:50 a.m.
Special Session on Operator Algebras and Operator Spaces, IV
Room 145, Altgeld Hall
Organizers:
ZhongJin Ruan, University of Illinois at UrbanaChampaign ruan@math.uiuc.edu
Florin P. Boca, University of Illinois at UrbanaChampaign fboca@math.uiuc.edu
Marius Junge, University of Illinois at UrbanaChampaign junge@math.uiuc.edu

9:30 a.m.
Positive Cocycles over Noncommutative 2Tori.
YiJun YAO*, Penn State University
(104746458) 
10:00 a.m.
Structures of certain homogeneous Hilbertian operator spaces and applications.
Quanhua Xu*, Universite de FrancheComte; France
(104746377) 
10:30 a.m.
Tilings, Modified Bellissard Algebra and $K$theory.
Semail Ulgen Yildirim*, Northwestern University
(10471969) 
11:00 a.m.
Every transcendental operator has a nontrivial invariant subspace.
YunSu Kim*, University of Toledo
(104747198) 
11:30 a.m.
Discussion

9:30 a.m.

Sunday March 29, 2009, 10:00 a.m.10:50 a.m.
Special Session on Number Theory in the Spirit of Erdos, IV
Room 143, Altgeld Hall
Organizers:
Kevin Ford, University of Illinois at UrbanaChampaign ford@math.uiuc.edu
A. J. Hildebrand, University of Illinois at UrbanaChampaign hildebr@math.uiuc.edu

10:00 a.m.
Dense sets of integers without long arithmetic progressions.
Kevin O'Bryant*, CUNY  Staten Island
(104711477) 
10:30 a.m.
Generalized multiplication tables.
Dimitris Koukoulopoulos*, University of Illinois at UrbanaChampaign
(104711455)

10:00 a.m.

Sunday March 29, 2009, 10:00 a.m.12:20 p.m.
Special Session on The Interface Between Number Theory and Dynamical Systems, IV
Room 245, Altgeld Hall
Organizers:
Florin Boca, University of Illinois at UrbanaChampaign fboca@math.uiuc.edu
Jeffrey Lagarias, University of Michigan lagarias@umich.edu
Kenneth Stolarsky, University of Illinois at UrbanaChampaign stolarsk@math.uiuc.edu

10:00 a.m.
The Weyl chamber flow, sections, and speculations about reduction theory (preliminary report).
Anatole Katok*, Penn State University
(104737446) 
11:00 a.m.
Apollonian Circle Packings and Horospherical Flows on Hyperbolic 3Manifolds.
Alex V Kontorovich*, Brown University
Hee Oh, Brown University
(10471161) 
11:30 a.m.
Quasiperiodic motion for the pentagram map.
Valentin Ovsienko, University Lyon 1
Richard Schwartz, Brown University
Sergei Tabachnikov*, Penn State
(104737204) 
12:00 p.m.
The distribution of the free path length of the linear flow in a honeycomb.
Florin P Boca*, University of Illinois UrbanaChampaign
(104711373)

10:00 a.m.

Sunday March 29, 2009, 10:00 a.m.12:20 p.m.
Special Session on Hyperbolic Geometry and Teichmuller Theory, IV
Room 443, Altgeld Hall
Organizers:
Jason Deblois, University of Illinois at Chicago jdelbois@math.uic.edu
Richard P. Kent, IV, Brown University rpkfour@gmail.com
Christopher J. Leininger, University of Illinois at UrbanaChampaign clein@math.uiuc.edu

10:00 a.m.
Asymptotics of pseudoAnosov dilatations.
ChiaYen Tsai*, University of Illinois at UrbanaChampaign
(104753160) 
10:30 a.m.
Margulis numbers and trace fields.
Peter B Shalen*, University of Illinois at Chicago
(104753294) 
11:00 a.m.
Rigid conics and Teichmueller discs.
Christopher Martin Judge*, Indiana University
S. Allen Broughton, RoseHulman Institute of Technology
(10475794) 
11:30 a.m.
Linear bound for the length of a conjugating element in the mapping class group.
Jing Tao*, University of Illinois at Chicago
(104751302) 
12:00 p.m.
A compactification for the space of singular Euclidean metrics on a surface.
Kasra Rafi*, University of Chicago
Moon Duchin, University of Michigan
Christopher Leininger, UIUC
(104751172)

10:00 a.m.

Sunday March 29, 2009, 10:00 a.m.10:55 a.m.
Special Session on Algebraic Methods in Statistics and Probability, IV
Room 204, Noyes Lab
Organizers:
Marlos A. G. Viana, University of Illinois at Chicago viana@uic.edu

10:00 a.m.
The Minimal Ideal of the Semigroup of Probability Measures on a Compact Semigroup with applications to Random Measures.
Gregory Budzban*, Southern Illinois University Carbondale
Goran Hognas, Abo Akademi
(10476074) 
10:30 a.m.
Combinatorial LocaltoGlobal PCA and an Application to Statistical Analysis of the Human Auditory Evoked Response.
Amir H Assadi*, University of Wisconsin  Madison
Hesam Torabi Dashti, Tehran University
Fatemeh Miri, Tehran University
(10476215)

10:00 a.m.

Sunday March 29, 2009, 12:00 p.m.12:20 p.m.
Special Session on Mathematical Visualization, IV
Room 102, Altgeld Hall
Organizers:
George K. Francis, University of Illinois at UrbanaChampaign gfrancis@uiuc.edu
Louis H. Kauffman, University of Illinois at Chicago kauffman@uic.edu
Dennis Martin Roseman, University of Iowa roseman@math.uiowa.edu
Andrew J. Hanson, Indiana University hanson@cs.indiana.edu

12:00 p.m.
Virtual Installations of Quasicrystalline Structures in 3space.
George Francis*, University of Illinois, UrbanaChampaign
Tony Robbin, Gilboa, New York
(10475184)

12:00 p.m.

Sunday March 29, 2009, 3:00 p.m.5:50 p.m.
Special Session on Algebra, Geometry and Combinatorics, IV
Room 217, Noyes Lab
Organizers:
Rinat Kedem, University of Illinois at UrbanaChampaign rinat@uiuc.edu
Alexander T. Yong, University of Illinois at UrbanaChampaign ayong@uiuc.edu

3:00 p.m.
The shape of a pure Osequence.
Mats Boij, Royal Institute of Technology
Juan C Migliore, University of Notre Dame
Rosa M MiróRoig, University of Barcelona
Uwe Nagel*, University of Kentucky
Fabrizio Zanello, Michigan Technological University
(104713476) 
3:30 p.m.
Monomial ideals with interesting properties.
Juan C. Migliore*, University of Notre Dame
Rosa MiroRoig, University of Barcelona
Uwe Nagel, University of Kentucky
(104713147) 
4:00 p.m.
On a minimal set of generators for the ideal of the diagonal locus of $(C^2)^n$.
Kyungyong Lee, Purdue University
Li Li*, University of Illinois at UrbanaChampaign
(104705375) 
4:30 p.m.
Koszul incidence algebras, affine semigroups, and StanleyReisner ideals.
Victor Reiner, University of Minnesota, Twin Cities
Dumitru I. Stamate*, Institute of Mathematics "Simion Stoilow" of the Romanian Academy
(10471698) 
5:00 p.m.
Stanley decompositions and squarefree monomial ideals.
YiHuang Shen*, Purdue University
(10470525) 
5:30 p.m.
On the Cohomology of a Simple Normal Crossings Divisor and its Dual Complex.
Parsa Bakhtary*, Purdue University
(104714398)

3:00 p.m.