AMS Sectional Meeting Full Program
Current as of Sunday, May 11, 2008 00:21:06
2008 Spring Western Section Meeting
Claremont, CA, May 34, 2008 (Saturday  Sunday)
Meeting #1039
Associate secretaries: Michel L Lapidus, AMS lapidus@math.ucr.edu, lapidus@mathserv.ucr.edu
Saturday May 3, 2008

Saturday May 3, 2008, 7:30 a.m.4:00 p.m.
Meeting Registration
Lobby, Bauer North 
Saturday May 3, 2008, 7:30 a.m.4:00 p.m.
Exhibit and Book Sale
Founders Room, Bauer North 
Saturday May 3, 2008, 8:00 a.m.10:40 a.m.
Special Session on C*algebras, subfactors and free probability, I
Room B35, Bauer South
Organizers:
Huaxin Lin, University of Oregon hlin@uoregon.edu
Feng Xu, University of California Riverside xufeng@math.ucr.edu

8:00 a.m.
Constructing the Haagerup subfactor with planar algebras.
Emily Peters*, University of California, Berkeley
(103947118) 
9:00 a.m.
Maximal abelian subalgebras of UHF algebras.
N. Christopher Phillips*, University of Oregon
(103946165) 
10:00 a.m.
Entropy and FugledeKadison Determinant.
Hanfeng Li*, SUNY at Buffalo
(103946164)

8:00 a.m.

Saturday May 3, 2008, 8:00 a.m.10:50 a.m.
Special Session on Recent Developments in Riemannian and Kaehlerian Geometry, I
Room RN 104, Roberts Hall North
Organizers:
Hao Fang, University of Iowa haofang@math.uiowa.edu
Zhiqin Lu, University of California, Irvine zlu@math.uci.edu
DragosBogdan Suceava, California State University Fullerton bsuceava@fullerton.edu
Mihaela B. Vajiac, Chapman University mbvajiac@chapman.edu

8:00 a.m.
Conformally flat submanifolds in spheres and integrable systems.
Neil M Donaldson*, University of California, Irvine
ChuuLian Terng, University of California, Irvine
(103953131) 
8:30 a.m.
The structure of complete manifolds with positive spectrum.
Ovidiu Munteanu*, UC Irvine
(10395332) 
9:00 a.m.
Degenerate singularity in three dimensional Ricci flow.
Yu Ding*, California State University, Long Beach
(10395883) 
9:30 a.m.
Applications of Complex MongeAmpere Operators in Complex Analysis and PseudoHermitian manifolds.
SongYing Li*, University of California at Irvine
(10395399) 
10:00 a.m.
The Symplectic Poincar\'{e} Conjecture.
Scott Jeremy Baldridge*, Louisiana State University
(103957121) 
10:30 a.m.
Eigenvalue estimates for minimal surfaces in hyperbolic space.
Alberto Candel*, Department of Mathematics, Cal State Northridge
(103953140)

8:00 a.m.

Saturday May 3, 2008, 8:00 a.m.10:50 a.m.
Special Session on Knot Theory and the Topology of 3manifolds, I
Room B36, Bauer South
Organizers:
Sam Nelson, Pomona College knots@esotericka.org
David Bachman, Pitzer College david_bachman@pitzer.edu
Erica Flapan, Pomona College eflapan@pomona.edu
Jim Hoste, Pitzer College jhoste@pitzer.edu
Patrick Shanahan, Loyola Marymount University pshanahan@lmu.edu

8:00 a.m.
Boring split links and unknots.
Scott A. Taylor*, University of California, Santa Barbara
(10395730) 
8:30 a.m.
Almost Normal Surfaces in Knot Complemets.
Robin T Wilson*, California State Polytechnic University, Pomona
(103957106) 
9:00 a.m.
Cincompressible planar surfaces in knot complements.
Maggy Tomova*, Rice University
(10395765) 
9:30 a.m.
Triangulations of linkmanifolds.
William H Jaco*, Oklahoma State University
J Hyam Rubinstein, University of Melbourne
(103957133) 
10:00 a.m.
The Heegaard structure of Dehn filled manifolds.
Yoav Moriah, Technion, Haifa, Israel
Eric Sedgwick*, DePaul University
(103957132) 
10:30 a.m.
Bounding the stable genera of Heegaard splittings from below.
Jesse Johnson*, Yale University
(10395747)

8:00 a.m.

Saturday May 3, 2008, 8:00 a.m.10:45 a.m.
Special Session on Algebraic Combinatorics, I
Room RS 103, Roberts Hall South
Organizers:
Anne Schilling, University of California Davis anne@math.ucdavis.edu
Michael Zabrocki, York University zabrocki@mathstat.yorku.ca

8:00 a.m.
Some open problems in the Theory of Macdonald Polynomials.
Adriano M Garsia*, University of California San Diego
(103905158) 
9:00 a.m.
Schur quasisymmetric functions.
Jim Haglund, University of Pennsylvania
Kurt Luoto, University of Washington
Sarah Mason, Davidson College
Steph van Willigenburg*, University of British Columbia
(10390576) 
10:00 a.m.
Generalization of $(q,t)$Catalan numbers.
Francois Descouens*, Fields Institute
Nantel Bergeron, York University
Mike Zabrocki, York University
(10390598)

8:00 a.m.

Saturday May 3, 2008, 8:30 a.m.10:50 a.m.
Special Session on Operators, Functions and Linear Spaces, I
Room B25, Bauer South
Organizers:
Asuman G. Aksoy, Claremont McKenna College aaksoy@cmc.edu
Stephan R. Garcia, Pomona College Stephan.garcia@pomona.edu
Michael Davlin O'Neill, Claremont McKenna College moneill@cmc.edu
Winston C. Ou, Scripps College Winston.ou@scripps.edu

8:30 a.m.
Goodenough Weights for Convolution Algebras on R+.
Sandy Grabiner*, Pomona College
(10394790) 
9:00 a.m.
Operator Topologies and Graph Convergence.
Gerald Beer*, California State University Los Angeles
(10394639) 
9:30 a.m.
On the Gr\"unbaum "4/3" conjecture.
Grzegorz C Lewicki*, Department of Mathematics, Jagiellonian University, Krakow, Poland
(103946102) 
10:00 a.m.
Uniformly Convex Metric Spaces.
Mohamed A Khamsi*, University of Texas at El Paso
(10394622) 
10:30 a.m.
Random Measure Algebras in Hilbert Space.
M. M. Rao*, University of California, Riverside, CA 92521
(10394620)

8:30 a.m.

Saturday May 3, 2008, 8:30 a.m.10:50 a.m.
Special Session on Diophantine Problems and Discrete Geometry, I
Room RN 15 (Lower Level), Roberts Hall North
Organizers:
Matthias Beck, San Francisco State University beck@math.sfsu.edu
Lenny Fukshansky, Claremont McKenna College lenny@cmc.edu

8:30 a.m.
Linear forms of finite sets of integers and lattice points.
Melvyn B. Nathanson*, CUNY ( Lehman College and the Graduate Center)
(103911108) 
9:00 a.m.
Polyhedral reduction domains from perfect forms.
Achill Schuermann*, University of Magdeburg
(10391167) 
9:30 a.m.
A Diophantine problem arising from a study in Galois groups.
M Filaseta*, University of South Carolina
S Laishram, University of Waterloo
N Saradha, Tata Institute of Fundamental Research
(103911101) 
10:00 a.m.
Exceptional sets for sums of primes and squares of primes.
Angel V Kumchev*, Towson University, MD
Jianya Liu, Shandong University, China
(10391156) 
10:30 a.m.
The limiting curve of Jarn\'\i k's polygons.
Greg Martin*, University of British Columbia
(10391107)

8:30 a.m.

Saturday May 3, 2008, 8:30 a.m.10:50 a.m.
Special Session on Hopf Algebras and Quantum Groups, I
Davidson Lecture Hall, Adams Hall
Organizers:
Gizem Karaali, Pomona College Gizem.Karaali@pomona.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
Serban Raianu, California State University Dominguez Hills sraianu@csudh.edu

8:30 a.m.
Generalized quantum doubles with projection.
Margaret Beattie*, Mount Allison University
Daniel Bulacu, University of Bucharest
(103916119) 
9:00 a.m.
Burnside's Theorem for Finite Quantum Groups.
Jorg Feldvoss*, University of South Alabama
(10391684) 
9:30 a.m.
Ideals of the enveloping algebra $U(sl_3)$.
Stefan Catoiu*, DePaul University
(103916134) 
10:00 a.m.
Representation theory of liftings of quantum planes.
William Chin*, DePaul University
Leonid Krop, DePaul University
(103916141) 
10:30 a.m.
Representations of liftings of quantum linear spaces.
Leonid Krop*, Department of Mathematical Sciences, DePaul University, Chicago, IL
(103916100)

8:30 a.m.

Saturday May 3, 2008, 8:30 a.m.10:50 a.m.
Special Session on Combinatorics of Partially Ordered Sets, I
Room RN 105, Roberts Hall North
Organizers:
Timothy M. Hsu, San Jose State University hsu@math.sjsu.edu
Mark J. Logan, University of MinnesotaMorris loganm@morris.umn.edu
Shahriar Shahriari, Pomona College sshahriari@pomona.edu

8:30 a.m.
Inversion arrangements and lower intervals in the Bruhat order.
Axel Hultman, KTH, Stockholm
Svante Linusson, KTH, Stockholm
John Shareshian*, Washington University
Jonas Sj\"ostrand, KTH, Stockholm
(103905116) 
9:00 a.m.
The Schurpositivity poset.
Peter R. W. McNamara*, Bucknell University
Stephanie van Willigenburg, University of British Columbia
(103905129) 
9:30 a.m.
Crossings and Nestings of Two Edges in Set Partitions.
Catherine Yan*, Texas A&M University
Svetlana Poznanovik, Texas A&M University
(10390562) 
10:00 a.m.
Forbidden characterization of the fractional weak discrepancy of posets.
Jeong Ok Choi*, University of Illinois at UrbanaChampaign
(10390571) 
10:30 a.m.
ErdosKoRado for permutations and set partitions.
Cheng Yeaw Ku*, California Institute of Technology
(10390545)

8:30 a.m.

Saturday May 3, 2008, 8:30 a.m.10:50 a.m.
Special Session on Applications of DelayDifferential Equations to Models of Disease, I
Room B24, Bauer South
Chairs:
John Milton, Claremont Colleges jmilton@jsd.claremont.edu
Organizers:
Ami Radunskaya, Pomona College aer04747@pomona.edu

8:30 a.m.
Opening Remarks: John Milton 
9:00 a.m.
Models for SexuallyTransmitted Diseases: From Sir Ronald Ross to Ken Cooke and beyond.
Carlos CastilloChavez*, Arizona State University
(103992175) 
9:30 a.m.
A Mathematical Model of Circulating Dendritic Cells in Cancer.
Lisette dePillis, Harvey Mudd College
Angela Gallegos*, Occidental College
(10399282) 
10:00 a.m.
Modeling GlucoseInsulin Regulatory System with TwoTime Delays.
Jiaxu Li*, University of Louisville
Yang Kuang, Arizona State University
Clint C. Mason, NIH/NIDDK
(103992138) 
10:30 a.m.
Stick balancing at the fingertip: Legends of the fall.
John Milton*, The Claremont Colleges
Elizabeth Balch, Claremont McKenna College
Meredith Strauss, Scripps College
Ferrin Ruiz, Scripps College
(10399264)

8:30 a.m.

Saturday May 3, 2008, 11:00 a.m.11:50 a.m.
Invited Address
Diophantine equations: From Erdos to Wiles and back
Forum, Bauer South
Michael A. Bennett*, University of British Columbia
(10391101) 
Saturday May 3, 2008, 2:00 p.m.2:50 p.m.
Invited Address
Affine Schubert news.
Forum, Bauer South
Anne Schilling*, University of California Davis
(10390504) 
Saturday May 3, 2008, 3:00 p.m.5:40 p.m.
Special Session on C*algebras, subfactors and free probability, II
Room B35, Bauer South
Organizers:
Huaxin Lin, University of Oregon hlin@uoregon.edu
Feng Xu, University of California Riverside xufeng@math.ucr.edu

3:00 p.m.
The planar algebra of grouptype subfactors.
Dietmar Bisch*, Vanderbilt University
(10394628) 
4:00 p.m.
Are Finite Simple C*Algebras of Real Rank Zero Stably Finite?
Shuang Zhang*, University of Cincinnati
(103947110) 
5:00 p.m.
Free evolution on algebras with two states.
Michael Anshelevich*, Texas A&M University
(103946162)

3:00 p.m.

Saturday May 3, 2008, 3:00 p.m.5:20 p.m.
Special Session on Dynamical Systems and Differential Equations, I
Room B34, Bauer South
Organizers:
Adolfo Rumbos, Pomona College arumbos@pomona.edu
Mario Martelli, Claremont McKenna College Mario.Martelli@ClaremontMcKenna.edu
Alfonso Castro, Harvey Mudd College castro@math.hmc.edu

3:00 p.m.
Pathogen competition and coexistence and the evolution of virulence.
Horst R Thieme*, Arizona State University
(10399235) 
3:30 p.m.
Computation of Lyapunov Characteristic Exponents of Low Dimensional Continuous Dynamical Systems.
Hubertus F von Bremen*, California State Polytechnic University, Pomona
(10393769) 
4:00 p.m.
On existence of positive solution for a class of 2x2 semipositone systems.
Abdou K. Drame, Las Vegas, Nevada
David G Costa*, University of Nevada Las Vegas
(103934174) 
4:30 p.m.
A Model for the Evolution of Competitive Coexistence.
J M Cushing*, Department of Mathematics, University of Arizona
Rosalyn Rael, Interdisciplinary Program in Applied Mathematics, University of Arizona
Thomas L Vincent, Aerospace and Mechanical Engineering, University of Arizona
Robert F Costantino, Ecology and Evolutionary Biology, Unviersity of Arizona
(10399213) 
5:00 p.m.
Dynamic Reduction with Applications to Discrete Systems.
Robert J. Sacker*, University of Southern California
(10393763)

3:00 p.m.

Saturday May 3, 2008, 3:00 p.m.5:20 p.m.
Special Session on Operators, Functions and Linear Spaces, II
Room B25, Bauer South
Organizers:
Asuman G. Aksoy, Claremont McKenna College aaksoy@cmc.edu
Stephan R. Garcia, Pomona College Stephan.garcia@pomona.edu
Michael Davlin O'Neill, Claremont McKenna College moneill@cmc.edu
Winston C. Ou, Scripps College Winston.ou@scripps.edu

3:00 p.m.
Unbounded operators commuting with restricted backward shifts.
Donald E Sarason*, University of California, Berkeley
(10394743) 
3:30 p.m.
"Determinant computations for some classes of ToeplitzHankel matrices".
Estelle L Basor*, California Polytechnic State University
(10394749) 
4:00 p.m.
Composition operator norm inequalities.
Linda J Patton*, California Polytechnic State University, San Luis Obispo
Christopher Hammond, Connecticut College
(103947159) 
4:30 p.m.
Norms of Composition Operators with Rational Symbol and Hypergeometric Series.
Dylan Q. Retsek*, Cal Poly, San Luis Obispo
(103947112) 
5:00 p.m.
Integration with respect to a HilbertSchmidt class operator valued measure.
Yuichiro Kakihara*, California State University, San Bernardino
(10392819)

3:00 p.m.

Saturday May 3, 2008, 3:00 p.m.5:50 p.m.
Special Session on Diophantine Problems and Discrete Geometry, II
Room RN 15 (Lower Level), Roberts Hall North
Organizers:
Matthias Beck, San Francisco State University beck@math.sfsu.edu
Lenny Fukshansky, Claremont McKenna College lenny@cmc.edu

3:00 p.m.
A Banach space determined by the Weil height.
Daniel Allcock, The University of Texas at Austin, Austin, TX
Jeffrey D. Vaaler*, The University of Texas at Austin, Austin, TX
(10391146) 
3:30 p.m.
Asymptotic results involving Ostrowski's decomposition of natural numbers.
Edward B. Burger*, Williams College
(10391195) 
4:00 p.m.
Convex polygons with fixed diameter and maximal perimeter.
Michael J. Mossinghoff*, Davidson College
(103952117) 
4:30 p.m.
An extension to the BrunTitchmarsh theorem.
Stephen Choi*, Department of Mathematics, Simon Fraser University
Kai Man Tsang, The University of Hong Kong
Tsz Ho Chan, University of Memphis
(10391141) 
5:00 p.m.
Repulsion of imaginary quadratic numbers of low height.
Christopher D Sinclair*, University of Colorado, Boulder
(10391160) 
5:30 p.m.
Lehmer's problem for integer symmetric matrices.
Chris J Smyth*, University of Edinburgh, UK
James F McKee, Royal Holloway, University of London
(10391217)

3:00 p.m.

Saturday May 3, 2008, 3:00 p.m.5:50 p.m.
Special Session on Recent Developments in Riemannian and Kaehlerian Geometry, II
Room RN 104, Roberts Hall North
Organizers:
Hao Fang, University of Iowa haofang@math.uiowa.edu
Zhiqin Lu, University of California, Irvine zlu@math.uci.edu
DragosBogdan Suceava, California State University Fullerton bsuceava@fullerton.edu
Mihaela B. Vajiac, Chapman University mbvajiac@chapman.edu

3:00 p.m.
Horizontally Homothetic Submersions and Nonnegative Curvature.
Frederick Wilhelm*, Univ. of Calf., Riverside
YeLin Ou, Texas A & M, Commerce Station
(10395321) 
3:30 p.m.
Nonlinear Energy Integrals, Entropy Functionals and The Ricci Flow on Noncompact Manifolds.
Rugang Ye*, University of California, Santa Barbara
(103953125) 
4:00 p.m.
Some results on the topology of manifolds of Nonnegative Isotropic Curvature.
Helena M. Noronha*, California State University Northridge
(103953149) 
4:30 p.m.
Curvatures in RiemannFinsler Geometry.
David Bao*, Department of Mathematics, San Francisco State University
(10395386) 
5:00 p.m.
Strong noncollapsing and uniform Sobolev inequalities for Ricci flow with surgeries.
S. Zhang Qi*, Math. Dept. UC Riverside
(10395326) 
5:30 p.m.
Eigenvalue Pinching with Lower Curvature Bounds.
Chad Sprouse*, Californa State University, Northridge
(103953153)

3:00 p.m.

Saturday May 3, 2008, 3:00 p.m.5:50 p.m.
Special Session on Hopf Algebras and Quantum Groups, II
Davidson Lecture Hall, Adams Hall
Organizers:
Gizem Karaali, Pomona College Gizem.Karaali@pomona.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
Serban Raianu, California State University Dominguez Hills sraianu@csudh.edu

3:00 p.m.
An indicatortype invariant for non semisimple Hopf algebras.
Andrea Jedwab*, University of Southern California
(103916137) 
3:30 p.m.
The theory of integrals: from compact groups to Hopf algebras and coalgebras.
Miodrag Cristian Iovanov*, SUNY @ Buffalo, USA & University of Bufharest, ROMANIA
(103916152) 
4:00 p.m.
Semisimple Hopf algebras of dimension $p^n$ which fit into cocentral abelian extensions.
Yevgenia Kashina*, DePaul University
(103916150) 
4:30 p.m.
The sum of a finite group of weights of a Hopf algebra.
Apoorva Khare*, University of California at Riverside (Department of Mathematics)
(103916111) 
5:00 p.m.
The Hopf symbol.
Yorck Sommerh\"auser*, University of South Alabama
(10391674) 
5:30 p.m.
Generalized Lie algebras.
Mikhail V. Kochetov*, Memorial University of Newfoundland
(103917161)

3:00 p.m.

Saturday May 3, 2008, 3:00 p.m.4:50 p.m.
Special Session on Combinatorics of Partially Ordered Sets, II
Room RN 105, Roberts Hall North
Organizers:
Timothy M. Hsu, San Jose State University hsu@math.sjsu.edu
Mark J. Logan, University of MinnesotaMorris loganm@morris.umn.edu
Shahriar Shahriari, Pomona College sshahriari@pomona.edu

3:00 p.m.
Unavoidable subhypergraphs beyond the EKR bound.
Zoltan F\"uredi*, Dept. Mathematics, University of Illinois at UrbanaChampaign
(10390555) 
3:30 p.m.
On Shadows in Posets.
Glenn Hurlbert*, Arizona State University
(103905147) 
4:00 p.m.
Poset related to graph indices of trees.
Hua Wang*, University of Florida
(10390544) 
4:30 p.m.
Distribution of Segment Lengths in Genome Rearrangements.
Glenn P. Tesler*, University of California, San Diego
(103905148)

3:00 p.m.

Saturday May 3, 2008, 3:00 p.m.5:50 p.m.
Special Session on Knot Theory and the Topology of 3manifolds, II
Room B36, Bauer South
Organizers:
Sam Nelson, Pomona College knots@esotericka.org
David Bachman, Pitzer College david_bachman@pitzer.edu
Erica Flapan, Pomona College eflapan@pomona.edu
Jim Hoste, Pitzer College jhoste@pitzer.edu
Patrick Shanahan, Loyola Marymount University pshanahan@lmu.edu

3:00 p.m.
Virtual Betti numbers of 3manifolds and symplectic 4manifolds with K = 0.
Stefano Vidussi*, University of California, Riverside
(103957146) 
3:30 p.m.
The universal $sl(2)$link cohomology via webs and foams.
Carmen L Caprau*, California State University, Fresno
(10395779) 
4:00 p.m.
A sequence of degree one Vassiliev invariants for virtual knots.
Allison K Henrich*, Dartmouth College
(10395740) 
4:30 p.m.
Quantum invariants of 3manifolds as holomorphic functions.
Sergiy Koshkin*, Northwestern University
(10395712) 
5:00 p.m.
$A_{4}$colored knots and their surgery equivalence.
Steven D. Wallace*, Louisiana State University
(10395716) 
5:30 p.m.
Spatial graph diagrams realizing prescribed subdiagrams partitions.
Reiko Shinjo*, Osaka City University Advanced Mathematical Institute (OCAMI)
(103951143)

3:00 p.m.

Saturday May 3, 2008, 3:00 p.m.4:50 p.m.
Special Session on Applications of DelayDifferential Equations to Models of Disease, II
Room B24, Bauer South
Chairs:
John Milton, Claremont Colleges jmilton@jsd.claremont.edu
Organizers:
Ami Radunskaya, Pomona College aer04747@pomona.edu

3:00 p.m.
Maturation Delays and Oscillation in PredatorPrey Models.
Richard H. Elderkin*, Pomona College
Kenneth L. Cooke, Pomona College (Deceased)
Wenzhang Huang, University of Alabama, Huntsville
(10399270) 
3:30 p.m.
Mathematical Models for Erythropoiesis.
Joseph M. Mahaffy*, San Diego State University
(10399278) 
4:00 p.m.
Testing the decreasing potential hypothesis using delays.
Ami E Radunskaya*, Pomona College
(10393468) 
4:30 p.m.
Discussion:Teaching delay equations to undergraduates (Milton and Radunskaya)

3:00 p.m.

Saturday May 3, 2008, 3:00 p.m.5:45 p.m.
Special Session on Algebraic Combinatorics, II
Room RS 103, Roberts Hall South
Organizers:
Anne Schilling, University of California Davis anne@math.ucdavis.edu
Michael Zabrocki, York University zabrocki@mathstat.yorku.ca

3:00 p.m.
A RepresentationTheoretic Model for kAtoms.
Mark Haiman*, UC Berkeley
LiChung Chen, UC Berkeley
(103905169) 
4:00 p.m.
$k$shape poset and $k$Schur functions.
Thomas Lam*, Harvard University
Luc Lapointe, Universidad de Talca
Jennifer Morse, Drexel University
Mark Shimozono, Virginia Tech
(10390581) 
5:00 p.m.
A bijection on core partitions.
Chris Berg, University of California, Davis
Brant Jones*, University of California, Davis
Monica Vazirani, University of California, Davis
(103905103)

3:00 p.m.

Saturday May 3, 2008, 3:00 p.m.5:10 p.m.
Contributed Paper Session
Room RN 103, Roberts Hall North

3:00 p.m.
Dynamic topological logic of the real line.
Maria Nogin*, California State University, Fresno
Aleksey Nogin, HRL Laboratories
(10390308) 
3:30 p.m.
Fields, Certificates, and Models.
Cyrus F Nourani*, http://projektakdmkrd.tripod.com
R M Moudi, http://projektakdmkrd.tripod.com
(10391211) 
3:45 p.m.
On the number of periodic solutions of polynomial differential equations.
Mohamad A. Alwash*, West Los Angeles College
(10393437) 
4:00 p.m.
Arithmetics where almost all numbers are even.
Mark Burgin*, UCLA
(10390325) 
4:15 p.m.
Solving Integral Equations When the Kernel is Unknown.
Rod Freed*, University of California, Irvine
(103945115) 
4:30 p.m.
Hopf Algebras and Projection Maps in Control Theory.
Eric T Gehrig*, Prescio Consulting, LLC
(103993179) 
4:45 p.m.
The Congruent Number Problem.
Susil Kumar Jena*, KIIT University, Bhubaneswar, Orissa, India
(103911168) 
5:00 p.m.
Perturbation Solution of the Kuznetsov Equation.
Dmitry A Altshuller*, Crane Aerospace & Electronincs
(103935135)

3:00 p.m.
Sunday May 4, 2008

Sunday May 4, 2008, 8:00 a.m.12:00 p.m.
Meeting Registration
Lobby, Bauer North 
Sunday May 4, 2008, 8:00 a.m.12:00 p.m.
Exhibit and Book Sale
Founders Room, Bauer North 
Sunday May 4, 2008, 8:00 a.m.10:40 a.m.
Special Session on C*algebras, subfactors and free probability, III
Room B35, Bauer South
Organizers:
Huaxin Lin, University of Oregon hlin@uoregon.edu
Feng Xu, University of California Riverside xufeng@math.ucr.edu

8:00 a.m.
Pairs of Intermediate Subfactors.
Pinhas Grossman*, Vanderbilt University
Masaki Izumi, Kyoto University
(103947109) 
9:00 a.m.
Random matrices, free probability, planar algebras and subfactors.
A Guionnet, ENS Lyon
VFR Jones, UC Berkeley
D Shlyakhtenko*, UCLA
(103946151) 
10:00 a.m.
Automorphisms of CuntzKrieger algebras.
Efren Ruiz*, Mathematics Department/University of Hawaii at Hilo
(10394727)

8:00 a.m.

Sunday May 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Recent Developments in Riemannian and Kaehlerian Geometry, III
Room RN 104, Roberts Hall North
Organizers:
Hao Fang, University of Iowa haofang@math.uiowa.edu
Zhiqin Lu, University of California, Irvine zlu@math.uci.edu
DragosBogdan Suceava, California State University Fullerton bsuceava@fullerton.edu
Mihaela B. Vajiac, Chapman University mbvajiac@chapman.edu

8:00 a.m.
Harmonic Maps in Lie Groups and Integrable Systems.
Mihaela B Vajiac*, Chapman University
(103953173) 
8:30 a.m.
Spectrum of the Laplacian on Quaternionic K\"ahler Manifolds.
Shengli Kong*, UC Irvine
(103958144) 
9:00 a.m.
Lagrangian Humbilical submanifold in a quaternion Euclidean space.
Yun Myung Oh*, Andrews University
(10395393) 
9:30 a.m.
A Comparison Theorem and A Sharp Bound via the Ricci Flow.
Jun Ling*, Utah Valley State College
(103953136) 
10:00 a.m.
Examples of generalized Sasakianspaceforms.
Alfonso Carriazo*, University of Sevilla (Spain)
(103953156) 
10:30 a.m.
Strict slope stability and the existence of Calabi Extremal Metrics.
Zhuangdan Daniel Guan*, Department of Mathematics, University of California at Riverside
(10395385)

8:00 a.m.

Sunday May 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Hopf Algebras and Quantum Groups, III
Davidson Lecture Hall, Adams Hall
Organizers:
Gizem Karaali, Pomona College Gizem.Karaali@pomona.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
Serban Raianu, California State University Dominguez Hills sraianu@csudh.edu

8:00 a.m.
Root system and Weyl grpupoid of Nichols algebras.
HansJ\"urgen Schneider*, Mathematisches Institut, LMU M\"unchen, Germany
Istvan Heckenberger, Mathematisches Institut, LMU M\"unchen, Mathematisches Institut, Universit\"at Leipzig, Germany
(103916127) 
8:30 a.m.
Pseudosymmetric braidings and YetterDrinfeld modules.
Florin Panaite, Institute of Mathematics of the Romanian Academy
Mihai D. Staic*, Indiana University, Bloomington
Freddy Van Oystaeyen, University of Antwerp
(10391633) 
9:00 a.m.
On finite braid representations.
Imre Tuba*, San Diego State UniversityImperial Valley
(103981176) 
9:30 a.m.
The half twist in ribbon categories.
Peter Tingley*, University of California, Berkeley
Snyder Noah, University of California, Berkeley
(103917104) 
10:00 a.m.
On deformations of graded Hopf algebras.
Mitja Mastnak*, University of Waterloo
(103917128) 
10:30 a.m.
Cohomology of pointed Hopf algebras.
Mitja Mastnak, University of Waterloo
Julia Pevtsova, University of Washington
Peter Schauenburg, Universitaet Muenchen
Sarah Witherspoon*, Texas A&M University
(10391880)

8:00 a.m.

Sunday May 4, 2008, 8:00 a.m.10:50 a.m.
Special Session on Knot Theory and the Topology of 3manifolds, III
Room B36, Bauer South
Organizers:
Sam Nelson, Pomona College knots@esotericka.org
David Bachman, Pitzer College david_bachman@pitzer.edu
Erica Flapan, Pomona College eflapan@pomona.edu
Jim Hoste, Pitzer College jhoste@pitzer.edu
Patrick Shanahan, Loyola Marymount University pshanahan@lmu.edu

8:00 a.m.
Rational structure on algebraic tangles and closed incompressible surfaces in the complements algebraically alternating knots and links.
Ozawa Makoto*, Komazawa University, Faculty of Arts and Sciences, Department of Natural Sciences
(10395729) 
8:30 a.m.
Quasifuchsian Spanning Surfaces in Knot Complements.
Colin C. Adams*, Williams College
(10395757) 
9:00 a.m.
The volume and Jones polynomial of hyperbolic links.
David Futer*, Michigan State University
Effie Kalfagianni, Michigan State University
(10395758) 
9:30 a.m.
Commensurability classes of (2,3,n) pretzel knot complements.
Melissa L Macasieb, The University of British Columbia
Thomas W Mattman*, California State University, Chico
(10395761) 
10:00 a.m.
Commensurability of knot complements.
Genevieve S Walsh*, Tufts University
(10395796) 
10:30 a.m.
Special links.
Eric B. Chesebro*, Rice University
Jason Deblois, University of Illinois at Chicago
Henry Wilton, University of Texas at Austin
(10395789)

8:00 a.m.

Sunday May 4, 2008, 8:00 a.m.10:45 a.m.
Special Session on Algebraic Combinatorics, III
Room RS 103, Roberts Hall South
Organizers:
Anne Schilling, University of California Davis anne@math.ucdavis.edu
Michael Zabrocki, York University zabrocki@mathstat.yorku.ca

8:00 a.m.
New applications of combinatorial Hopf algebras.
JeanChristophe Novelli*, Universite ParisEst MarnelaVallee
(103905155) 
9:00 a.m.
Expansions of Symmetric Functions in Commutative Images of Noncommutative Symmetric Functions.
Lenny Tevlin*, Physics Department, Yeshiva University
(103905113) 
10:00 a.m.
Rationality, irrationality, and Wilf equivalence in the generalized factor order.
Sergey Kitaev, Institute of Mathematics, Reykjav\'ik University
Jeffrey Liese, University of California, San Diego
Jeffrey B. Remmel*, University of California, San Diego
Bruce E. Sagan, Michigan State University
(103905105)

8:00 a.m.

Sunday May 4, 2008, 8:30 a.m.10:50 a.m.
Special Session on Dynamical Systems and Differential Equations, II
Room B34, Bauer South
Organizers:
Adolfo Rumbos, Pomona College arumbos@pomona.edu
Mario Martelli, Claremont McKenna College Mario.Martelli@ClaremontMcKenna.edu
Alfonso Castro, Harvey Mudd College castro@math.hmc.edu

8:30 a.m.
Periodic Nonstationary Stokes Flow.
Victor L Shapiro*, University of California,Riverside
(10393515) 
9:00 a.m.
Modeling the Evolution of Repetitive Sequence in DNA.
Suzanne S Sindi*, Division of Applied Mathematics, Brown University
(103934130) 
9:30 a.m.
Prevalent Behavior of Strongly Order Preserving Semiflows.
Hal L. Smith*, Arizona State University
M. W. Hirsch, University of California , Berkeley
German Enciso, Ohio State University
(10393714) 
10:00 a.m.
Perturbation from symmetry for indefinite semilinear elliptic equations.
Hossein T. Tehrani*, UNLV
(10393594) 
10:30 a.m.
Stability of periodic orbits in a highdimensional electrical network.
Harish S Bhat*, Claremont McKenna College, Department of Mathematics
(103937170)

8:30 a.m.

Sunday May 4, 2008, 8:30 a.m.10:50 a.m.
Special Session on Operators, Functions and Linear Spaces, III
Room B25, Bauer South
Organizers:
Asuman G. Aksoy, Claremont McKenna College aaksoy@cmc.edu
Stephan R. Garcia, Pomona College Stephan.garcia@pomona.edu
Michael Davlin O'Neill, Claremont McKenna College moneill@cmc.edu
Winston C. Ou, Scripps College Winston.ou@scripps.edu

8:30 a.m.
Multivariate moment matrices with zeros in their inverse.
Mihai Putinar*, University of California
(10396018) 
9:00 a.m.
Joint defect indices of tuples of symmetric operators in the multidimensional moment problem.
Roger A. Roybal*, California State University, Channel Islands
(103947178) 
9:30 a.m.
Sets which lift to a set with an LMI representation.
J William Helton*, University of California at San Diego
Jiawang Nie, UC San Diego
(10399052) 
10:00 a.m.
Complex Symmetric Operators.
Warren Wogen*, University of North Carolina
(10394751) 
10:30 a.m.
Stable polynomials and distinguished varieties.
Greg Knese*, University of California, Irvine
(10393242)

8:30 a.m.

Sunday May 4, 2008, 8:30 a.m.10:50 a.m.
Special Session on Diophantine Problems and Discrete Geometry, III
Room RN 15 (Lower Level), Roberts Hall North
Organizers:
Matthias Beck, San Francisco State University beck@math.sfsu.edu
Lenny Fukshansky, Claremont McKenna College lenny@cmc.edu

8:00 a.m.
Heights for subvarieties of abelian varieties.
Sinnou David*, Universite Pierre et Marie Curie
(103911180) 
8:30 a.m.
Orbits of points on $K3$ surfaces.
Arthur Baragar*, UNLV
(103911157) 
9:00 a.m.
Sums over polytopes.
James E Pommersheim*, Reed College
(103952139) 
9:30 a.m.
Minimal Volume $k$Point Lattice $d$Simplices.
Han M Duong*, University of Illinois at UrbanaChampaign
(10395259) 
10:00 a.m.
Lattices in Division Algebras and Wireless Communication.
B. A. Sethuraman*, California State University Northridge
(10391654) 
10:30 a.m.
Congruences for some theta series coefficients.
Pavel Guerzhoy*, University of Hawaii at Manoa
(103911124)

8:00 a.m.

Sunday May 4, 2008, 8:30 a.m.10:50 a.m.
Special Session on Combinatorics of Partially Ordered Sets, III
Room RN 105, Roberts Hall North
Organizers:
Timothy M. Hsu, San Jose State University hsu@math.sjsu.edu
Mark J. Logan, University of MinnesotaMorris loganm@morris.umn.edu
Shahriar Shahriari, Pomona College sshahriari@pomona.edu

8:30 a.m.
On chain partitions for quotients of the Boolean lattice.
Jerrold R. Griggs*, University of South Carolina, Columbia, SC
(103905120) 
9:00 a.m.
Nested Chain Decompositions of Normalized Matching Posets of Rank 3.
Jordan O Tirrell*, Lafayette College
Elinor Escamilla, Pomona College
Andreea Nicolae, Pomona College
Paul Salerno, Pomona College
Shahriar Shahriari, Pomona College
(10390587) 
9:30 a.m.
Matchwebs.
Rae Fredrich*, University of Minnesota, Morris
Tim Hsu, San Jose State University
Mark J. Logan, University of Minnesota, Morris
Katherine Nolan, San Jose State University
(103905163) 
10:00 a.m.
Distributive Lattices of Small Width: A Problem from Richard Stanley's 1986 Text {\sl Enumerative Combinatorics\/}.
Jonathan David Farley*, California Institute of Technology
Ryan Klippenstine, Brandon University
(103906154) 
10:30 a.m.
Graph Homomorphisms.
Eric Babson*, CA
(103900160)

8:30 a.m.

Sunday May 4, 2008, 11:00 a.m.11:50 a.m.
Invited Address
Classification of simple amenable $C^*$algebras of stable rank one.
Forum, Bauer South
Huaxin Lin*, University of Oregon
(10394603) 
Sunday May 4, 2008, 3:00 p.m.5:40 p.m.
Special Session on C*algebras, subfactors and free probability, IV
Room B35, Bauer South
Organizers:
Huaxin Lin, University of Oregon hlin@uoregon.edu
Feng Xu, University of California Riverside xufeng@math.ucr.edu

3:00 p.m.
\noindent{\it($\mathcal D$stable) purely infinite $C^*$algebras, the ideal property and real rank zero} ({\it Mostly a joint work with Mikael R{\o}rdam)}\\.
Cornel Pasnicu*, University of Puerto Rico, Rio Piedras Campus
(10394623) 
4:00 p.m.
Lifting KKelements, asymptotical unitary equivalence and classification of simple C*algebras.
Zhuang Niu*, University of Oregon
Huaxin Lin, University of Oregon
(103946171) 
5:00 p.m.
Subfactors Obtained From Hadamard Matrices.
Richard Burstein*, UC Berkeley
(103947166)

3:00 p.m.

Sunday May 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Operators, Functions and Linear Spaces, IV
Room B25, Bauer South
Organizers:
Asuman G. Aksoy, Claremont McKenna College aaksoy@cmc.edu
Stephan R. Garcia, Pomona College Stephan.garcia@pomona.edu
Michael Davlin O'Neill, Claremont McKenna College moneill@cmc.edu
Winston C. Ou, Scripps College Winston.ou@scripps.edu

3:00 p.m.
Function Spaces of Dirichlet Series.
Brian Maurizi*, Washington University in Saint Louis
H Queffelec, University of Lille (France)
(10393053) 
3:30 p.m.
Linear Operators in Hypernormed Spaces.
Mark Burgin*, UCLA
(10394709) 
4:00 p.m.
Simplified refined Jones factorization of $A_\infty$ weights.
Winston Ou*, Scripps College
(103942142) 
4:30 p.m.
BiLipschitz decomposition of Lipschitz functions into a metric space.
Raanan Schul*, UCLA
(103928145) 
5:00 p.m.
On infinite matrices generated dyadically by a $2\times2$ block.
Mark C Ho*, Department of Applied Mathematics, National Sun Yat Sen University
Mu Ming Wong, Department of Information Technology, Meiho Institute of Technology
(10394791)

3:00 p.m.

Sunday May 4, 2008, 3:00 p.m.5:20 p.m.
Special Session on Hopf Algebras and Quantum Groups, IV
Davidson Lecture Hall, Adams Hall
Organizers:
Gizem Karaali, Pomona College Gizem.Karaali@pomona.edu
M. Susan Montgomery, University of Southern California smontgom@math.usc.edu
Serban Raianu, California State University Dominguez Hills sraianu@csudh.edu

3:00 p.m.
CalogeroMoser spaces, representations of rational Cherednik algebras, and the Shapiro Conjecture.
Iain Gordon, Edinburgh University
Emil Horozov, Sofia University
Milen Yakimov*, University of California, Santa Barbara
(103905172) 
3:30 p.m.
The bosonfermion correspondence and onesided quantum groups.
Earl J. Taft*, Rutgers University
(10391636) 
4:00 p.m.
Lie bialgebras and Quantum Symmetric Algebras.
Sebastian Zwicknagl*, University of California, Riverside
(10391766) 
4:30 p.m.
Hopf algebra structures in nonlinear control systems.
Matthias Kawski*, Arizona State University
(103993177) 
5:00 p.m.
Discussion

3:00 p.m.

Sunday May 4, 2008, 3:00 p.m.5:50 p.m.
Special Session on Knot Theory and the Topology of 3manifolds, IV
Room B36, Bauer South
Organizers:
Sam Nelson, Pomona College knots@esotericka.org
David Bachman, Pitzer College david_bachman@pitzer.edu
Erica Flapan, Pomona College eflapan@pomona.edu
Jim Hoste, Pitzer College jhoste@pitzer.edu
Patrick Shanahan, Loyola Marymount University pshanahan@lmu.edu

3:00 p.m.
Intrinsic linking and knotting are arbitrarily complex.
Erica Flapan, Pomona College
Blake Mellor*, Loyola Marymount University
Ramin Naimi, Occidental College
(10395792) 
3:30 p.m.
Milnor invariants for spatial graphs.
Thomas R Fleming*, UC San Diego
(10395750) 
4:00 p.m.
Intrinsically linked graphs in ${\mathbb R}P^3$.
Jason Bustamante, Montana Tech of the University of Montana
Joel Foisy*, SUNY Potsdam
Kenji Kozai, Harvey Mudd College
Kevin Matthews, SUNY Potsdam
Trickey Kristen, Clarkson University
(10395724) 
4:30 p.m.
Intrinsically $n$linked Spatial Graphs and Minor Minimality.
Danielle O'Donnol*, University of California, Los Angeles
(10395472) 
5:00 p.m.
Clasppass moves on spatial handcuff graphs.
Takaaki Hoki, Waseda University
Ryo Nikkuni, Kanazawa University
Kouki Taniyama*, Waseda University
(10395788) 
5:30 p.m.
An intrinsic nontriviality of graphs.
Ryo Nikkuni*, Kanazawa University
(10395738)

3:00 p.m.

Sunday May 4, 2008, 3:00 p.m.5:45 p.m.
Special Session on Algebraic Combinatorics, IV
Room RS 103, Roberts Hall South
Organizers:
Anne Schilling, University of California Davis anne@math.ucdavis.edu
Michael Zabrocki, York University zabrocki@mathstat.yorku.ca

3:00 p.m.
Hecke group algebras.
Nicolas M. Thi\'ery*, Univ ParisSud, Laboratoire de Math\'ematiques d'Orsay, Orsay, F91405; CNRS, Orsay, F91405, FRANCE / UC Davis
Anne Schilling, UC Davis
Florent Hivert, Laboratoire d'Informatique, de Traitement de l'Information et des Syst\`emes, Universit\'e de Rouen, FRANCE
(10390597) 
4:00 p.m.
Type $A_n^{(1)}$ crystals and promotion operators.
Jason Bandlow*, University of CaliforniaDavis
(103905167) 
5:00 p.m.
Multiple AndrewsGordon Identities associated to root systems.
Hasan Coskun*, Texas A&M UniversityCommerce
(103905114)

3:00 p.m.