AMS Sectional Meeting Program by Day
Current as of Saturday, April 4, 2009 00:27:23
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Inquiries: meet@ams.org
2009 Spring Central Sectional Meeting
Urbana, IL, March 2729, 2009 (Friday  Sunday)
Meeting #1047
Associate secretaries:
Susan J Friedlander, AMS
susan@math.northwestern.edu
Friday March 27, 2009

Friday March 27, 2009, 12:00 p.m.4:00 p.m.
Meeting Registration
Room 314, Altgeld Hall

Friday March 27, 2009, 12:00 p.m.4:00 p.m.
Exhibit and Book Sale
Math Library (2nd Floor), Altgeld Hall

Friday March 27, 2009, 2:00 p.m.4:50 p.m.
Special Session on Complex Dynamics and Value Distribution, I
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

2:00 p.m.
Monotonicity and comparison results for conformal invariants.
Albert Baernstein II*, Washington University
A. Yu Solynin, Texas Tech University
(104735152)

2:30 p.m.
Maimquisttype theorems for Painleve equations.
Edmund Y. M. Chiang*, Hong Kong University of Science and Technology
R. G. Halburd, Loughborough University
E. F. Lingham, Loughborough University
(104730497)

3:00 p.m.
A reverse Denjoy theorem.
P C Fenton, Department of Mathematics and Statistics, University of Otago
John F Rossi*, Department of Mathematics, Virginia Tech
(10473022)

3:30 p.m.
Unbounded Bilipschitz Homogeneous Jordan Curves.
David M Freeman*, University of Cincinnati
(104730406)

4:00 p.m.
On the differential independence of the Riemann Zeta Function and the Euler Gamma Function.
Zhuan J Ye*, Dept of Math. Northern Illinois Univ
(104730241)

4:30 p.m.
The hyperbolic metric and real affine mappings.
David Minda*, University of Cincinnati
(104730460)

Friday March 27, 2009, 2:00 p.m.5:20 p.m.
Special Session on Local and Homological Methods in Commutative Algebra, I
Room 165, Noyes Lab
Organizers:
Florian Enescu, Georgia State University fenescu@gsu.edu
Sandra Spiroff, University of Mississippi spiroff@olemiss.edu

2:00 p.m.
Semidualizing modules and Bass numbers.
Sean SatherWagstaff*, North Dakota State University
(104713265)

2:30 p.m.
Examples of Some Henselian Rings.
Dana T Weston*, University of Missouri  Columbia
(104713329)

3:00 p.m.
Dualizing modules and Gorenstein presentations.
David Jorgensen, University of TexasArlington
Graham J Leuschke*, Syracuse University
Sean SatherWagstaff, North Dakota State University
(104713315)

3:30 p.m.
Coherent Gorenstein Rings.
Livia M Hummel*, University of Indianapolis
(104713259)

4:00 p.m.
Generators of the defining ideals of monomial curves.
Hema Srinivasan*, University of Missouri
(104713385)

4:30 p.m.
Koszul modules over short Gorenstein local rings.
Inês Bonacho dos Anjos Henriques*, Department of Mathematics, University of NebraskaLincoln
Liana M. Şega, Department of Mathematics and Statistics, University of Missouri
(104713399)

5:00 p.m.
Contracting endomorphisms and Gorenstein modules.
Hamid Rahmati*, University of NebraskaLincoln
(104713383)

Friday March 27, 2009, 2:00 p.m.4:50 p.m.
Special Session on Number Theory in the Spirit of Erdos, I
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

Friday March 27, 2009, 2:00 p.m.5:20 p.m.
Special Session on Time, Scale and Frequency Methods in Harmonic Analysis, I
Room 141, Altgeld Hall
Organizers:
Richard S. Laugesen, University of Illinois at UrbanaChampaign Laugesen@illinois.edu
Darrin M. Speegle, St. Louis University speegled@slu.edu

2:00 p.m.
On some maximal multipliers in $L^p$.
Ciprian Demeter*, Indiana University, Bloomington
(104742417)

2:30 p.m.
On curvature and the bilinear multiplier problem.
S. Zubin Gautam*, University of California, Los Angeles
(104742426)

3:00 p.m.
Some operators related to multilinear oscillatory integrals.
Xiaochun Li*, University of Illinois at UrbanaChampaign
(104742496)

3:30 p.m.
Timefrequency localization and sampling of multiband signals.
Joseph D Lakey*, New Mexico State University
(10474234)

4:00 p.m.
Gabor frames and directional timefrequency analysis.
Loukas Grafakos*, University of Missouri
Christopher Sansing, Department of Defense
(104742199)

4:30 p.m.
Spline Wavelets, Finite Element Wavelets, and Wavelets with Composite Dilation.
TianXiao He*, Illinois Wesleyan University
(104742214)

5:00 p.m.
Sparsity Equivalence of Anisotropic Decompositions.
David L. Donoho, Stanford University
Gitta Kutyniok*, University of Osnabrueck
(104742319)

Friday March 27, 2009, 2:00 p.m.5:20 p.m.
Special Session on Hyperbolic Geometry and Teichmuller Theory, I
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

2:00 p.m.
Title: The Casson invariant and the word metric on the Torelli group.
Nathan Broaddus*, University of Chicago
Benson Farb, University of Chicago
Andrew Putman, MIT
(104757185)

2:30 p.m.
The determinant of the Laplacian, Lyapunov exponents and volumes of strata of quadratic differentials.
Alex Eskin*, University of Chicago
(104737293)

3:00 p.m.
Controlling covers of arithmetic orbifolds.
D B McReynolds*, University of Chicago
(104751107)

3:30 p.m.
Discussion

4:00 p.m.
Fourfree groups and hyperbolic geometry.
Marc Culler*, University of Illinois at Chicago
Peter B. Shalen, University of Illinois at Chicago
(104757316)

4:30 p.m.
A combinatorial property of isometric Zactions and geodesic flow.
Ian Biringer*, University of Chicago
(104751149)

5:00 p.m.
Epstein surfaces, trees, and bubbles.
David Dumas*, University of Illinois at Chicago
(104753182)

Friday March 27, 2009, 2:00 p.m.5:20 p.m.
Special Session on Topological Dynamics and Ergodic Theory, I
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

2:00 p.m.
Rudolph's Thesis.
Matthew Foreman*, UC Irvine
(104737452)

3:00 p.m.
A concentration function estimate and intersective sets from matrices.
Paul Balister, Memphis
Randall McCutcheon*, Memphis
(104737289)

3:30 p.m.
About positive and zero exponents of $SL(2,R)$ valued cocycles over irrational rotation flows, in the smooth category.
Mahesh G Nerurkar*, Rutgers University, New Jersey, 08102.
(104737165)

4:00 p.m.
The set of sequence entropies for a given space.
Xiangdong Ye*, university of science and technology of china
(104737110)

4:30 p.m.
On the Pointwise Ergodic Theorem along squares.
Ciprian Demeter*, Indiana University, Bloomington
(104737416)

5:00 p.m.
Multiple ergodic theorems for Hardy field sequences.
Nikos Frantzikinakis*, University of Memphis
(104737440)

Friday March 27, 2009, 2:00 p.m.5:20 p.m.
Special Session on qSeries and Partitions, I
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

2:00 p.m.
A partial theta identity of Ramanujan and its number theoretic interpretation.
Krishnaswami Alladi*, University of Florida
(104711131)

2:30 p.m.
The GBGRank , 4cores and 3cores.
Alexander Berkovich*, Mathematics Department, University of Florida
(104705328)

3:00 p.m.
Rank and crank partition congruences.
Frank G Garvan*, University of Florida
(104711371)

3:30 p.m.
Ranks for a Function Related to Overpartitions.
Song Heng Chan*, Nanyang Technological University
Ae Ja Yee, Penn State University
(104711422)

4:00 p.m.
A Proof of Sellers' Conjecture.
Peter Paule*, Research Institute for Symbolic Computation (RISC)
(104711370)

4:30 p.m.
Number theoretic properties of generating functions related to Dyson's rank for partitions into distinct parts.
Maria J Monks*, Massachusetts Institute of Technology
(10471199)

5:00 p.m.
On the subpartitions of the ordinary partitions.
Byungchan Kim*, University of Illinois, UrbanaChampaign
(10471189)

Friday March 27, 2009, 2:00 p.m.4:50 p.m.
Special Session on Concrete Aspects of Real Positive Polynomials, I
Room 162, Noyes Lab
Organizers:
Victoria Powers, Emory University vicki@mathcs.emory.edu
Bruce Reznick, University of Illinois at UrbanaChampaign reznick@illinois.edu

2:00 p.m.
Optimizing Polynomials via Low Dimensional Restrictions.
Grigoriy Blekherman*, Brooklyn, NY
(104726298)

2:30 p.m.
A convex polynomial that is not SOSconvex.
Amir Ali Ahmadi, Massachusetts Institute of Technology
Pablo A. Parrilo*, Massachusetts Institute of Technology
(104712415)

3:00 p.m.
Rational sums of squares and applications.
Christopher Jacques Hillar*, MSRI
(104713424)

3:30 p.m.
Diagonal minus tail forms and Lasserre's sufficient conditions for sums of squares.
Carla Fidalgo*, Departamento de Física e Matemática, Instituto Superior de Engenharia de Coimbra
Alexander Kovacec, Departamento de Matemática, Universidade de Coimbra
(104714246)

4:00 p.m.
Noncoercive sums of squares in $\mathbb{R} [x_1, ... ,x_n]$.
Gregory C Verchota*, Syracuse University
(10471265)

4:30 p.m.
On Hilbert's theorem for psd ternary sextics.
Bruce Reznick*, University of Illinois at UrbanaChampaign
(104714390)

Friday March 27, 2009, 2:00 p.m.5:20 p.m.
Special Session on The Logic and Combinatorics of Algebraic Structures, I
Room 203, Noyes Lab
Organizers:
John Snow, Concordia University john.snow@cune.edu
Jeremy Alm, Illinois College alm.academic@gmail.com

2:00 p.m.
Relation algebras from group actions.
Jeremy F Alm*, Illinois College
(104703170)

2:30 p.m.
Birelativized relation algebras.
Richard L Kramer*, Iowa State University
(104703121)

3:00 p.m.
Chromatic Graphs, Ramsey Numbers, and the Flexible Atom Conjecture.
Jeremy F. Alm, Illinois College
Roger D. Maddux, Iowa State University
Jacob Manske*, Iowa State University
(10470571)

3:30 p.m.
Relational relevance algebras.
Roger D Maddux*, Iowa State University
(104703100)

4:30 p.m.
Clones with finitely many relative $\mathcal R$classes.
Agnes E. Szendrei*, University of Colorado
Erkko Lehtonen, University of Luxembourg
(104708173)

5:00 p.m.
Moufang sets of finite Morley rank.
Josh Wiscons*, University of Colorado at Boulder
(104720148)

Friday March 27, 2009, 2:00 p.m.4:20 p.m.
Special Session on Geometric Group Theory
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

Friday March 27, 2009, 2:00 p.m.3:55 p.m.
Special Session on Algebraic Methods in Statistics and Probability, I
Room 204, Noyes Lab
Organizers:
Marlos A. G. Viana, University of Illinois at Chicago viana@uic.edu

2:00 p.m.
Selfavoiding generating sequences for Fourier lattice designs.
Henry P Wynn*, London School of Economics
(10470364)

2:30 p.m.
Kiefercomplete classes of designs for cubic mixture models.
Thomas Klein*, Technische Universität München, Germany
(10476244)

3:00 p.m.
NonParametric Modeling and Survey Design for Censored Preference Data.
Paul Kidwell*, Purdue University
Yi Mao, Purdue University
Guy Lebanon, Georgia Institute of Technology
(10476221)

3:30 p.m.
Dihedral Fourier Analysis in Statistical Optics.
Marlos A.G. Viana*, University of Illinois at Chicago
Vasudevan Lakshminarayanan, University of Waterloo, Waterloo, Canada
(104742180)

Friday March 27, 2009, 2:00 p.m.5:20 p.m.
Special Session on Graph Theory, I
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

2:00 p.m.
Packing seagulls.
Maria Chudnovsky, Columbia University
Paul Seymour*, Princeton University
(104705314)

2:30 p.m.
Compact topological cliques in sparse graphs.
Tao Jiang*, Miami University, Oxford, Ohio
(104705111)

3:00 p.m.
Finding minors in graphs with a given path structure.
André Kündgen*, California State University San Marcos
Michael Pelsmajer, Illinois Institute of Technology
Radhika Ramamurthi, California State University San Marcos
(104705467)

3:30 p.m.
Graph Minors and graph linkages.
Kenichi Kawarabayashi, National Institute of Informatics, Japan
Gexin Yu*, College of William and Mary
(104705244)

4:00 p.m.
$K_5$subdivisions in 5connected nonplanar graphs.
Jie Ma, Georgia Institute of Technology
Xingxing Yu*, Georgia institute of Technology
(104705104)

4:30 p.m.
Teledomination in special graph classes: A survey of algorithmic and complexity results.
Jan Kratochvil*, Charles University, Prague
(104705436)

5:00 p.m.
Rao's degree sequence conjecture and wellquasiordering tournaments by immersion.
Maria Chudnovsky*, Columbia Univeristy
Paul Seymour, Princeton Univeristy
(104705239)

Friday March 27, 2009, 2:00 p.m.5:20 p.m.
Special Session on Probabilistic and Extremal Combinatorics, I
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

2:00 p.m.
New results in ErdosFranklRodl theory.
Jozsef Balogh, University of Illinois at UrbanaChampaign
Bela Bollobas, Cambridge Univerity, UK and U. of Memphis, TN
Miklos Simonovits*, Renyi Institute, Budapest, Hungary
(104705334)

2:30 p.m.
Random transceiver networks.
Paul Balister*, University of Memphis
Béla Bollobás, Cambridge University, UK, and University of Memphis
Mark Walters, Queen Mary, University of London, UK
(104760419)

3:00 p.m.
On the sumproduct problem.
Jozsef Solymosi*, Department of Mathematics. University of British Columbia
(104705307)

3:30 p.m.
Counting graphs without a fixed subgraph.
Jozsef Balogh, University of Illinois at UrbanaChampaign
Wojciech Samotij*, University of Illinois at UrbanaChampaign
(104705339)

4:00 p.m.
On the minimum degree of minimal Ramsey graphs.
Tibor Szabo*, McGill University
Philipp Zumstein, ETH Zurich
Stefanie Zuercher, ETH Zurich
(104705471)

4:30 p.m.
Independent dominating sets in graphs of girth five.
Jacques A Verstraete*, University of California San Diego
(104705481)

5:00 p.m.
Phylogenetic combinatorics.
Laszlo A Szekely*, University of South Carolina
(104705183)

Friday March 27, 2009, 2:00 p.m.2:20 p.m.
Special Session on Mathematical Visualization, I
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

2:00 p.m.
Partiview in the Cube.
Stuart Levy*, National Center for Supercomputing Applications, U Illinois, Urbana
William Davis, University of Illinois, Urbana
(104751288)

Friday March 27, 2009, 2:00 p.m.4:55 p.m.
Special Session on Holomorphic and CR Mappings, I
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

Friday March 27, 2009, 2:00 p.m.5:25 p.m.
Session on Session for Contributed Papers, I
Room 304, Noyes Lab

2:15 p.m.
LLL reduction and a conjecture of Gunnells.
Darrin M. Doud*, Brigham Young University
(104711187)

2:30 p.m.
Powered sum formulas via termwise integrations: a geometric point of view.
Hungping Tsao*, Novato, California
(10471106)

2:45 p.m.
Variants the Diophantine equation $x! + 1 = y^2$.
Alain Togbe*, Purdue University North Central
(104711343)

3:00 p.m.
Ramanujan Primes and Bertrand's Postulate.
Jonathan Sondow*, New York, NY
(104711391)

3:15 p.m.
Flat Primes and Thin Primes.
Kevin A Broughan*, University of Waikato, Hamilton, New Zealand
(10471156)

3:30 p.m.
Method of Infinite Ascent applied on $2^p.A^6 + B^3 = C^2$.
Susil Kumar Jena*, KIIT University, Bhubaneswar751024, Orissa, India
(10471109)

3:45 p.m.
On the Construction of Skew QuasiCyclic Codes.
T Abualrub, American University of Sharjah, Sharjah, UAE
A Ghrayeb, Concordia University, Montreal, Quebec
N Aydin*, Kenyon College, Ohio, USA
I Siap, Adiyaman Univ., Adiyaman, Turkey
(10470535)

4:15 p.m.
Mutually orthogonal latin squares based on groups.
Anthony B Evans*, Wright State University
(10470528)

4:30 p.m.
Geometric Figures as Sets of Convergent, Divergent and Parallel Lines and Surfaces.
Stewart E Brekke*, International University for Graduate Studies
(10470019)

4:45 p.m.
Deformation Theory as a generalization of Lie Theory.
Lucian Miti Ionescu*, Illinois State University
(104718106)

5:00 p.m.
The $sl_3$ Selberg integral.
S. Ole Warnaar*, The University of Queensland, Australia
(104705341)

5:15 p.m.
Using Mathematica to Visualize Bifurcation and Chaos in the Dynamics of Symplectic Integrators.
O. Michael Melko*, Northern State University
(104737409)

Friday March 27, 2009, 2:30 p.m.5:20 p.m.
Special Session on Differential Geometry and Its Applications, I
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

2:30 p.m.
Quasilinearization, Euler's inequality and Aleksandrov's curvature.
Igor G Nikolaev*, University of Illinois at UrbanaChampaign
(104753253)

3:00 p.m.
Conjugate points and non injectivity of the exponential map.
Keith Burns*, Northwestern University
Benjamin Schmidt, University of Chicago
(10475366)

3:30 p.m.
Compact convex central crosssections make surfaces quadric.
Bruce M Solomon*, Indiana University, Bloomington
(104753271)

4:00 p.m.
Leafwise entropy rigidity for foliations.
Chris Connell*, Indiana University, Bloomington
Zhenyu Li, Indiana University, Bloomington
(104753299)

4:30 p.m.
Effective universal coverings and their applications.
Alexander Nabutovsky*, University of Toronto
(104753150)

5:00 p.m.
Short geodesic loops on complete Riemannian manifolds.
Regina Rotman*, University of Toronto
(104753164)

Friday March 27, 2009, 2:30 p.m.5:20 p.m.
Special Session on Geometric Function Theory and Analysis on Metric Spaces, I
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

2:00 p.m.
Dynamics of quasiconformal fields.
Jani Onninen*, Syracuse University
Tadeusz Iwaniec, Syracuse University
Leonid V Kovalev, Syracuse University
(104730489)

2:30 p.m.
Thurston obstructions and Ahlfors regular conformal dimension.
Kevin M Pilgrim*, Dept. Math., Indiana University
Peter Haissinsky, Universite de Provence
(104737247)

3:00 p.m.
Invariant Peano curves of expanding Thurston maps.
Daniel Meyer*, Department of Mathematics and Statistics, University of Helsinki
(104737309)

3:30 p.m.
Uniform Metric Spaces and Pointed GromovHausdorff Distance.
David A Herron*, University of Cincinnati
(104751437)

4:00 p.m.
Metric cotype and quasisymmetric embeddings.
Kevin Wildrick*, University of Jyväskylä
Ellen Veomett, California State University, East Bay
(104746134)

4:30 p.m.
Finite distortion, value distribution, and cohomology.
Pekka J. Pankka*, University of Michigan
(104730176)

5:00 p.m.
On approximate differentiability of the maximal function.
Piotr Hajlasz*, University of Pittsburgh
Jan Maly, Charles University and Purkyne University (Czech Republic)
(104746410)

Friday March 27, 2009, 3:00 p.m.4:45 p.m.
Special Session on Topological Field Theories, Representation Theory, and Algebraic Geometry, I
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

Friday March 27, 2009, 3:00 p.m.5:20 p.m.
Special Session on The Interface Between Number Theory and Dynamical Systems, I
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

Friday March 27, 2009, 3:00 p.m.5:20 p.m.
Special Session on Operator Algebras and Operator Spaces, I
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

Friday March 27, 2009, 5:40 p.m.6:30 p.m.
Invited Address
Lfunctions: Identities and estimates.
Room 314, Altgeld Hall
Akshay Venkatesh*, New York UniversityCourant Institute
(10471101)
Inquiries: meet@ams.org