
AMS Sectional Meeting Full Program
Current as of Saturday, April 11, 2009 00:27:58
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Inquiries: meet@ams.org
2009 Spring Southeastern Section Meeting
Raleigh, NC, April 45, 2009 (Saturday  Sunday)
Meeting #1048
Associate secretaries: Matthew Miller, AMS miller@math.sc.edu
Saturday April 4, 2009

Saturday April 4, 2009, 7:30 a.m.4:00 p.m.
Meeting Registration
Foyer, Riddick Hall

Saturday April 4, 2009, 7:30 a.m.4:00 p.m.
Exhibit and Book Sale
Foyer, Riddick Hall

Saturday April 4, 2009, 8:00 a.m.10:50 a.m.
Special Session on Computational Methods in Lie Theory, I
Room 339, Riddick Hall Organizers: Eric Sommers, University of Massachusetts, Amherst esommers@math.umass.edu
Molly Fenn, North Carolina State University

8:00 a.m.
Quivers with antiinvolutions.
Zongzhu Lin*, Kansas State University and National Science Foundation
Yi Fang, Australia National University
(104805316)

8:30 a.m.
$\operatorname{Ext}^{1}$quivers for the Witt Algebra $W(1,1)$.
Brian D. Boe*, University of Georgia
Daniel K. Nakano, University of Georgia
Emilie Wiesner, Ithaca College
(104817302)

9:00 a.m.
The Strong Lefschetz Property for Coinvariant Rings of Finite Reflection Groups.
Chris R. McDaniel*, University of Massachusetts Amherst
(104805251)

9:30 a.m.
Representations of Lie algebras and Lie superalgebras.
ShunJen Cheng*, Institute of Mathematics, Academia Sinica
(104817208)

10:00 a.m.
Smooth components of Springer fibers.
William Graham*, University of Georgia
Roger Zierau, Oklahoma State University
(104822268)

10:30 a.m.
Nilpotent orbits in characteristic 2 and Springer correspondence.
Ting Xue*, Massachusettes Institute of Technology
(104820150)

Saturday April 4, 2009, 8:00 a.m.10:50 a.m.
Special Session on Brauer Groups, Quadratic Forms, Algebraic Groups, and Lie Algebras, I
Room 325, Riddick Hall Organizers: Eric S. Brussel, Emory University
Skip Garibaldi, Emory University skip@mathcs.emory.edu

8:00 a.m.
Ramification in Bad characteristics.
David J Saltman*, Center for Communications Research Princeton
(104812176)

8:30 a.m.
Patching subfields of division algebras.
David Harbater, University of Pennsylvania
Julia Hartmann, Aachen University
Daniel Krashen*, University of Georgia
(104816337)

9:00 a.m.
$\operatorname{Spin}_7$ as a differential Galois group.
Arne Ledet*, Texas Tech University
(10481262)

9:30 a.m.
Indecomposable division algebras in the Brauer group of $\mathbb{Q}_p(t)$.
Kelly McKinnie*, Rice University/University of Montana
Eric Brussel, Emory University
Eduardo Tengan, ICMC/Universidade de São Paulo
(104816286)

10:00 a.m.
Lattice invariants over cyclic groups and Noether settings.
Esther Beneish*, Central Michigan University
(104820339)

10:30 a.m.
Essential dimension and abelian varieties.
Patrick Gerald Brosnan*, University of British Columbia
(104814217)

Saturday April 4, 2009, 8:00 a.m.10:50 a.m.
Special Session on Galois Module Theory and Hopf Algebras, I
Room 315, Riddick Hall Organizers: Robert G. Underwood, Auburn University Montgomery runderwo@aum.edu
James E. Carter, College of Charleston

8:00 a.m.
Morita equivalences between HopfGalois extensions. Applications.
Stefaan Caenepeel*, Vrije Universiteit Brussel
Andrei Marcus, BabeşBolyai University, ClujNapoca, Romania
(104816313)

8:30 a.m.
HopfGalois theory and the quasicoFrobenius property.
Joost Vercruysse*, Vrije Universiteit Brussel
(10481698)

9:00 a.m.
Regular Permutation Groups of Order mp.
Timothy Kohl*, Boston University
(10481349)

9:30 a.m.
HopfGalois module structure of graded rings.
Robert G Underwood*, Auburn University Montgomery, Florida State University
(104813238)

10:00 a.m.
Coxeter transformation and inverses of Cartan matrices for coalgebras.
William Chin*, DePaul University
Daniel Simson, Nicolaus Copernicas University
(104816374)

10:30 a.m.
On the Galois Module Structure of Square Classes of Maximal Elementary Abelian $2$Extensions.
Adam Topaz*, University of Pennsylvania
(104811346)

Saturday April 4, 2009, 8:00 a.m.10:50 a.m.
Special Session on Applications of Dynamical Systems to Problems in Biology, I
Room 461, Riddick Hall Organizers: John E. Franke, North Carolina State University franke@math.ncsu.edu
James F. Selgrade, North Carolina State University

8:00 a.m.
Using Toxicokinetic Data to Develop Model Predictions for 4Methylimidazole Chronic Exposure.
Cammey Cole Manning*, Meredith College
(10489283)

8:30 a.m.
Development of a Quantitative Model for Nuclear ReceptorMediated Induction of Xenobiotic Metabolizing Enzymes.
Nicholas S. Luke*, U.S. EPA, ORD/NHEERL/ETD/PKB
Michael J DeVito, U.S. EPA, ORD/NHEERL/ETD/PKB
Imran Shah, U.S. EPA, ORD/NCCT
Hisham A ElMasri, U.S. EPA, ORD/NHEERL/ETD/PKB
(104892232)

9:00 a.m.
A PhysiologicallyBased Pharmacokinetic Model of a Perfluorinated Chemical Using TimeDependent and ConcentrationDependent Changes in the Pharmacokinetic Parameters.
Leona A Harris*, The College of New Jersey
Hugh A Barton, Pfizer Global Research & Development
(104892111)

9:30 a.m.
Establishing metabolic changes in the rat during exposures of carbon tetrachoride and trichloroethylene through the use of physiologically based (PBPK) modeling.
Karen A. Yokley*, Elon University
Marina V. Evans, U.S. EPA, ORD/NHEERL/ETD/PKB
Jane E. Simmons, U.S. EPA, ORD/NHEERL/ETD/PKB
(104892281)

10:00 a.m.
Dynamics of a Human Menstrual Cycle Model with Multiple Inhibins.
R. Drew Pasteur*, College of Wooster
James F. Selgrade, North Carolina State University
(104892293)

10:30 a.m.
Complex temporal patterns of spontaneous initiation and termination of reentry in a loop of cardiac tissue.
David Chan*, Virginia Commonwealth University
H. Sedaghat, Virginia Commonwealth University
M.A. Wood, Virginia Commonwealth University
J.W. Cain, Virginia Commonwealth University
C.K. Cheng, Virginia Commonwealth University
C.M. Baumgarten, Virginia Commonwealth University
(10489229)

Saturday April 4, 2009, 8:00 a.m.10:50 a.m.
Special Session on Commutative Rings and Monoids, I
Room 301, Riddick Hall Organizers: Scott T. Chapman, Sam Houston State University scott.chapman@shsu.edu
James B. Coykendall, North Dakota State University

8:00 a.m.
Intersections of valuation overrings of twodimensional Noetherian domains.
Bruce M Olberding*, New Mexico State University
(104813266)

8:30 a.m.
Star and semistar operations in polynomial extensions.
Marco Fontana*, Universita' degli Studi Roma Tre, Rome, Italy
Gyu Whan Chang, University of Incheon, Republic of Korea
(104813151)

9:00 a.m.
Prime ideals in twodimensional domains.
Roger A Wiegand, University of Nebraska Lincoln
Sylvia M Wiegand*, University of Nebraska Lincoln
(104813284)

9:30 a.m.
Pointwise minimal extensions.
PaulJean Cahen*, Université Paul Cézanne (AixMarseille)
David E. Dobbs, University of Tenessee
Thomas G. Lucas, University of North Carolina Charlotte
(104813134)

10:00 a.m.
Patching together a minimal overring.
David E. Dobbs*, University of Tennessee
Jay Shapiro, George Mason University
(104813145)

10:30 a.m.
Existence of Rings of Finite Rank $n$ as well as Further Explorations into the $n$generator property.
Amanda Hagen Matson*, University of Minnesota, Morris
(104813267)

Saturday April 4, 2009, 8:00 a.m.10:50 a.m.
Special Session on Algebraic Groups and Symmetric Spaces, I
Room 319, Riddick Hall Organizers: Stacy Beun, Cabrini College slb96@cabrini.edu
Aloysius Helminck, North Carolina State University

8:00 a.m.
Invariant Theory of the Enveloping Algebra.
Alfred Gérard Noël*, The University of Massachusetts Boston
Steven Glenn Jackson, The University of Massachusetts Boston
(10482266)

8:30 a.m.
A duality map for nilpotent orbits.
Eric Sommers*, University of Massachusetts, Amherst
(10481754)

9:00 a.m.
Shintani lifting, finite subfield symmetric spaces, and realvalued characters.
C. Ryan Vinroot*, College of William and Mary
(104820146)

9:30 a.m.
Algorithms for computing characters of real reductive symmetric spaces.
Jennifer R Daniel*, Lamar University
Daniel J Gagliardi, SUNY Canton
(104820245)

10:00 a.m.
New results for padic symmetric spaces and their representations.
G. F. Helminck*, Korteweg de Vries Institute for Mathematics
A. G. Helminck, NCSU
(104822272)

10:30 a.m.
Generating equivalence classes of Bstable ideals.
Molly Fenn*, North Carolina State University
(104822278)

Saturday April 4, 2009, 8:00 a.m.10:50 a.m.
Special Session on KacMoody Algebras, Vertex Algebras, Quantum Groups, and Applications, I
Room 321, Riddick Hall Organizers: Bojko N. Bakalov, North Carolina State University bojko_bakalov@ncsu.edu
Naihuan N. Jing, North Carolina State University
Kailash C. Misra, North Carolina State University

8:00 a.m.
Multisum identities related to $A_1^{(1)}$.
Robert Lee Wilson*, Rutgers University
(104817336)

8:30 a.m.
On Constant term identities of CherednikMacdonaldMehta type for $\widehat{sl_2 \mathbb{C}}$.
Sankaran Viswanath*, Indian Institute of Science, Bangalore, India
(10481746)

9:00 a.m.
On Free Field Type Realizations for $\widehat{\mathfrak{sl}_n}$.
Ben L Cox*, College of Charleston
Andre G. Bueno, University of Sao Paulo
Vyacheslav Futorny, University of Sao Paulo
(104817162)

9:30 a.m.
Walgebras, quantum groups and logarithmic conformal field theory.
Antun Milas*, University at Albany (SUNY)
(104817137)

10:00 a.m.
Rationality of the vertex algebra $V_L^+$ when $L$ is a nondegenerate even lattice of arbitrary rank.
Gaywalee Kerman Yamskulna*, Illinois State University
(104881260)

10:30 a.m.
Borcherds (GKM) algebras and finite order automorphisms.
Elizabeth Jurisich*, The College of Charleston
(104817259)

Saturday April 4, 2009, 8:00 a.m.10:50 a.m.
Special Session on the Mathematics of Biochemical Reaction Networks, I
Room 105, Withers Hall Organizers: Anne Shiu, University of California Berkeley
Manoj Gopalkrishnan, University of Southern California
Gheorghe Craciun, University of WisconsinMadison craciun@math.wisc.edu

8:00 a.m.
Chemical Reaction Network Theory: The Strange Relationship of Chemistry, Biochemistry and Mathematics.
Martin Feinberg*, Ohio State University
(104892383)

9:00 a.m.
Complete Networks of Reversible Binding Reactions.
Gilles Gnacadja*, Amgen
(104892243)

9:30 a.m.
Oscillations in Biochemical Reaction Networks.
Maya Mincheva*, Northern Illinois University
(104892319)

10:00 a.m.
Solvability of QSSA in chemical kinetics.
Casian A. Pantea*, University of WisconsinMadison
James B Rawlings, Department of Chemical and Biological Engineering, University of WisconsinMadison
Gheorghe Craciun, Department of Mathematics and Department of Biomolecular Chemistry, University of WisconsinMadison
(104892122)

10:30 a.m.
Algebraic Statistical Model for Inferring Biochemical Reactions Network.
Grzegorz A Rempala*, Department of Biostatistics, Medical College of Georgia
(10489297)

Saturday April 4, 2009, 8:00 a.m.10:40 a.m.
Special Session on Applications of Algebraic and Geometric Combinatorics, I
Room 232A, Withers Hall Organizers: Seth M. Sullivant, North Carolina State University smsulli2@ncsu.edu
Carla D. Savage, North Carolina State University

8:00 a.m.
These talks are presented jointly with the Special Session on Rings, Algebras, and Varieties in Combinatorics.

8:00 a.m.
Admissible $W$Graphs and Commuting Cartan Matrices.
John R. Stembridge*, University of Michigan
(104805202)

8:30 a.m.
Graph Multiplihedra.
Satyan L Devadoss*, Williams College
Stefan Forcey, Tennessee State University
(10485734)

9:00 a.m.
The ${\bf c}{\bf d}$index of Bruhat and balanced graphs.
Richard Ehrenborg*, University of Kentucky
Margaret Readdy, University of Kentucky
(104805106)

9:30 a.m.
Broken Diamonds and Partition Congruences.
Peter Paule*, Research Institute for Symbolic Computation (RISC)
(104805323)

10:00 a.m.
$k$Schur functions, graded $S_n$ modules, and the flag variety.
Mark D Haiman*, UC Berkeley
LiChung Chen, UC Berkeley
(104805191)

Saturday April 4, 2009, 8:00 a.m.10:50 a.m.
Special Session on Low Dimensional Topology and Geometry, I
Room 314, Riddick Hall Organizers: Nathan M. Dunfield, University of Illinois at UrbanaChampaign nmd@uiuc.edu
John B. Etnyre, Georgia Institute of Technology
Lenhard Ng, Duke University

Saturday April 4, 2009, 8:00 a.m.10:40 a.m.
Special Session on Rings, Algebras, and Varieties in Combinatorics, I
Room 232A, Withers Hall Organizers: Patricia Hersh, North Carolina State University phersh@indiana.edu
Christian Lenart, SUNY Albany
Nathan Reading, North Carolina State University

8:00 a.m.
See the detail of the talks presented jointly under the listing for the Special Session on Applications of Algebraic and Geometric Combinatorics, I.

Saturday April 4, 2009, 8:00 a.m.9:50 a.m.
Special Session on Enumerative Geometry and Related Topics, I
Room 115, Withers Hall Organizers: Richard L. Rimanyi, University of North Carolina, Chapel Hill
Leonardo C. Mihalcea, Duke University lmihalce@math.duke.edu

8:00 a.m.
The positroid stratification of the Grassmannian.
David E Speyer*, MIT/Clay Mathematics Institute
Allen Knutson, Cornell
Thomas Lam, Harvard
(104814262)

8:30 a.m.
The cohomology class of positroid varieties, and quantum cohomology.
Allen Knutson, Cornell University
Thomas Lam*, Harvard University
David Speyer, MIT/Clay
(104814196)

9:00 a.m.
Equivariant (KTheory) jeu de taquin for Grassmannians.
Alexander Yong*, University of Illinois at UrbanaChampaign
Hugh Thomas, University of New Brunswick
(10480581)

9:30 a.m.
Intersecting some special subvarieties of the flag variety.
Julianna Tymoczko*, University of Iowa
(104814356)

Saturday April 4, 2009, 8:00 a.m.10:50 a.m.
Special Session on Advancements in Turbulent Flow Modeling and Computation, I
Room 145, Withers Hall Organizers: Leo G. Rebholz, Clemson University ler6@math.pitt.edu
Traian Iliescu, Virginia Polytechnic Institute and State University

Saturday April 4, 2009, 8:00 a.m.10:50 a.m.
Special Session on Geometry of Differential Equations, I
Room 160, Withers Hall Organizers: Thomas A. Ivey, College of Charleston
Irina A. Kogan, North Carolina State University iakogan@ncsu.edu

8:00 a.m.
Cartan's equivalence method and singularity analysis.
Raouf Dridi*, Czech Technical University
(104834221)

8:30 a.m.
Integrability of 2nd order PDE and the geometry of $GL(2,\mathbb{R})$structures.
Abraham D. Smith*, Duke University
(10485305)

9:00 a.m.
Maximally symmetric hyperbolic equations of generic type.
Dennis The*, Texas A&M University
(104853109)

9:30 a.m.
Geometry of controlaffine systems in low dimensions.
Jeanne Clelland*, University of Colorado, Boulder
Christopher Moseley, Calvin College
George Wilkens, University of Hawaii, Manoa
(104853280)

10:00 a.m.
On projective equivalence of univariate polynomial subspaces.
Robert Milson*, Dalhousie University, Halifax, Canada
(104822102)

10:30 a.m.
Lie point symmetries and numerical solutions of differential equations.
Pavel Winternitz*, Universite de Montreal
(104834247)

Saturday April 4, 2009, 8:30 a.m.10:50 a.m.
Special Session on Mathematics of Immunology and Infectious Diseases, I
Room 450, Riddick Hall Organizers: Stanca M. Ciupe, Duke University stanca.ciupe@duke.edu
Jonathan Forde, Hobart and William Smith Colleges

8:30 a.m.
Modeling of the implications of vaccine on the withinhost dynamics of the closely related pathogens.
Juilee Thakar*, Pennsylvania State University
Timothy Reluga, Pennsylvania State University
(104800207)

9:00 a.m.
Kinetic of influenza A virus in the human respiratory tract and the interferon response.
Abdessamad Tridane*, Arizona State University at Polytechnic campus
(104892222)

9:30 a.m.
A simple mathematical model to understand influenza's complex evolutionary dynamics.
Katia Koelle*, Duke University
Meredith Kamradt, Duke University
(104892204)

10:00 a.m.
Mathematical model of the mammalian immune response to influenza A.
Ian Price*, University of Pittsburgh
David Swigon, University of Pittsburgh
G Bard Ermentrout, University of Pittsburgh
Gilles Clermont, University of Pittsburgh Medical Center, Department of Critical Care Medicine
(104834147)

10:30 a.m.
Multistrain withinhost virus dynamics.
Patrick De Leenheer*, University of Florida
(104892277)

Saturday April 4, 2009, 8:30 a.m.10:50 a.m.
Special Session on Numerical Solution of Partial Differential Equations and Applications, I
Room 110, Withers Hall Organizers: Alina Chertock, North Carolina State University
Zhilin Li, North Carolina State University zhilin@math.ncsu.edu

Saturday April 4, 2009, 8:30 a.m.10:50 a.m.
Special Session on Deferred Correction Methods and their Applications, I
Room 135, Withers Hall Organizers: Elizabeth L. Bouzarth, Duke University bouzarth@math.duke.edu
Anita T. Layton, Duke University

Saturday April 4, 2009, 8:30 a.m.10:50 a.m.
Special Session on Stochastic Dynamics, I
Room 130, Withers Hall Organizers: Yuri Bakhtin, Georgia Institute of Technology
Scott McKinley, Duke University
Jonathan C. Mattingly, Duke University jonm@math.duke.edu

8:30 a.m.
Averaging of Hamiltonian Flows with an Ergodic Component.
Leonid Koralov*, University of Maryland, College Park
Dmitry Dolgopyat, University of Maryland
(104860334)

9:00 a.m.
On dynamics on the shock manifolds.
Konstantin Khanin*, University of Toronto
(104835343)

9:30 a.m.
Reaction  diffusion equations with the evolution of the particles.
Stanislav Molchanov*, UNCCharlotte
(104860333)

10:00 a.m.
Stability and Fluctuations of Generalized Traveling Waves in Random Media.
Antoine Mellet, University of Maryland
James Nolen*, Duke University
JeanMichel Roquejoffre, Univ. Paul Sabatier, Toulouse
Lenya Ryzhik, University of Chicago
(104835182)

10:30 a.m.
Generalizations of the SimonSpencer Theorem for 1D Schödinger Operators.
Jason Holt*, University of South Carolina Lancaster
(10488130)

Saturday April 4, 2009, 8:30 a.m.10:50 a.m.
Special Session on Homotopical Algebra with Applications to Mathematical Physics, I
Room 451, Riddick Hall Organizers: Thomas J. Lada, North Carolina State University lada@math.ncsu.edu
Jim Stasheff, University of North Carolina, Chapel Hill

Saturday April 4, 2009, 8:30 a.m.10:50 a.m.
Special Session on Recent Advances in Symbolic Algebra and Analysis, I
Room 120, Withers Hall Organizers: Michael F. Singer, North Carolina State University singer@ncsu.edu
Agnes Szanto, North Carolina State University

8:30 a.m.
Intersection Theory and Homotopy for Computation of Invariants.
Sandra Di Rocco, KTH, Stockholm, Sweden
David Eklund, KTH, Stockholm, Sweden
Christopher Peterson*, Colorado State University
Andrew J. Sommese, University of Notre Dame
(104814103)

9:00 a.m.
CohenMacaulayness and computation of Newton graded toric rings.
Uli Walther*, Purdue U.
Mathias Schulze, Oklahoma State U.
(104813100)

9:30 a.m.
Matrix representations for toric parametrizations.
Nicolás Botbol, Dto. de Matemática FCEN, Universidad de B. Aires & Institut de Mathématiques de Jussieu, Université Paris VI
Alicia Dickenstein*, Dto. de Matemática FCEN, Universidad de Buenos Aires, Argentina
Marc Dohm, Laboratoire J. A. Dieudonné, Université de Nice, France
(10481389)

10:00 a.m.
The rank of a hypergeometric system.
Christine Berkesch*, Purdue University
(104814165)

10:30 a.m.
Root Bound for Pham Systems.
Hoon Hong*, North Carolina State University
(10481442)

Saturday April 4, 2009, 9:00 a.m.10:50 a.m.
Special Session on Mathematical Progress and Challenges for Biological Materials, I
Room 317, Riddick Hall Organizers: Mansoor A. Haider, North Carolina State University m_haider@ncsu.edu
Gregory Forest, University of North Carolina, Chapel Hill

9:00 a.m.
Transient Anomalous Diffusion in Soft Matter: An Exactly Solvable Model.
Scott McKinley*, Duke University
M. Gregory Forest, UNCChapel Hill
Lingxing Yao, University of Utah
(104860344)

9:30 a.m.
On the Stability of Active Suspensions.
Christel Hohenegger*, Courant Institute of Mathematical Sciences, New York University
Michael J Shelley, Courant Institute of Mathematical Sciences, New York University
(104876296)

10:00 a.m.
Nanofluid Flow in BioMEMS.
Clement Kleinstreuer*, NC State University
Jie Li, NC State University
(104876180)

10:30 a.m.
Modeling blood flow and pressurearea dynamics in arteries.
Mette S. Olufsen*, North Carolina State University
(104892236)

Saturday April 4, 2009, 11:10 a.m.12:00 p.m.
Invited Address
Surfaces in finite covers of 3manifolds: The virtual Haken conjecture.
Room 232A, Withers Hall
Nathan M. Dunfield*, University of Illinois at UrbanaChampaign
(10485701)

Saturday April 4, 2009, 1:30 p.m.2:20 p.m.
Invited Address
Stochastically forced fluid equations: Transfer between scales and ergodicity.
Room 232A, Withers Hall
Jonathan C. Mattingly*, Duke University
(10483504)

Saturday April 4, 2009, 2:30 p.m.5:15 p.m.
Special Session on Computational Methods in Lie Theory, II
Room 339, Riddick Hall Organizers: Eric Sommers, University of Massachusetts, Amherst esommers@math.umass.edu
Molly Fenn, North Carolina State University

2:30 p.m.
Decomposing structure constants for the BelkaleKumar product in the cohomology of flag varieties.
Edward L Richmond*, University of Oregon
(104814175)

3:00 p.m.
Computations of typeA KazhdanLusztig polynomials of maximal degree.
Gregory S. Warrington*, University of Vermont
(104805292)

3:30 p.m.
Generalized Young Diagrams for Hermitian Symmetric Spaces.
Markus Hunziker, Baylor University
W. Andrew Pruett*, Baylor University
(104817325)

4:00 p.m.
Computing Hermitian Representations of Real Groups.
Jeffrey Adams*, University of Maryland
Peter Trapa, University of Utah
Marc van Leeuwen, University of Poitiers
David Vogan, Massachusetts Institute of Technology
(104822328)

4:30 p.m.
KazhdanLusztig polynomials for signatures.
Jeffrey Adams, University of Maryland
Marc van Leeuwen, Université de Poitiers
Peter Trapa, University of Utah
David A. Vogan*, MIT
(10482270)

Saturday April 4, 2009, 2:30 p.m.5:20 p.m.
Special Session on Nonlinear Dynamics and Control, I
Room 135, Withers Hall Organizers: Anthony M. Bloch, University of Michigan, Ann Arbor
Dmitry Zenkov, North Carolina State University dvzenkov@ncsu.edu

2:30 p.m.
Spinning rods, microfluidics, and propulsion by cilia in biological systems.
Roberto Camassa*, University of North Carolina at Chapel Hill
Terry Jo Leiterman, St. Norbert College
Richard M. McLaughlin, University of North Carolina at Chapel Hill
(104876329)

3:00 p.m.
Bragg resonance, shore reflection and longshore sandbars.
Jie Yu*, Department of Civil, Construction and Environmental Engineering, North Carolina State University
(104876305)

3:30 p.m.
MomentumConserving Models for Aquatic Locomotion through Discrete Vortex Shedding.
Scott David Kelly*, University of North Carolina at Charlotte
(104870295)

4:00 p.m.
Orthogonal Polynomials, Moments, Measure Deformation, Dynamical Systems, and SVD Algorithm.
Moody T. Chu*, North Carolina State University
(104815274)

4:30 p.m.
Nonholonomic Mechanics and Quantization.
Anthony M Bloch*, University of Michigan
(104834253)

5:00 p.m.
Quasivelocities and Symmetries in Nonholonomic Dynamics.
Anthony M Bloch, The University of Michigan
Jerrold E Marsden, California Institute of Technology
Dmitry V Zenkov*, North Carolina State University
(104870285)

Saturday April 4, 2009, 2:30 p.m.5:20 p.m.
Special Session on Brauer Groups, Quadratic Forms, Algebraic Groups, and Lie Algebras, II
Room 325, Riddick Hall Organizers: Eric S. Brussel, Emory University
Skip Garibaldi, Emory University skip@mathcs.emory.edu

Saturday April 4, 2009, 2:30 p.m.4:20 p.m.
Special Session on Galois Module Theory and Hopf Algebras, II
Room 315, Riddick Hall Organizers: Robert G. Underwood, Auburn University Montgomery runderwo@aum.edu
James E. Carter, College of Charleston

Saturday April 4, 2009, 2:30 p.m.4:50 p.m.
Special Session on Mathematics of Immunology and Infectious Diseases, II
Room 450, Riddick Hall Organizers: Stanca M. Ciupe, Duke University stanca.ciupe@duke.edu
Jonathan Forde, Hobart and William Smith Colleges

2:30 p.m.
Capturing the Dynamics of Hepatitis B.
Sarah Anne Hews*, Arizona State University
(104892185)

3:00 p.m.
Fragmentation and Aggregation of Bacterial Emboli.
David M Bortz*, Applied Mathematics; University of Colorado
Erin Byrne, Applied Mathematics; University of Colorado
John Younger, Emergency Medicine; University of Michigan
(104892335)

3:30 p.m.
Stochasticity and Heterogeneity in Models for VectorBorne Diseases.
Alun L. Lloyd*, North Carolina State University
(104892345)

4:00 p.m.
Stability analysis of a model of hostpathogen interaction during hepatitis B infection.
Anne Catlla*, Wofford College
Stanca Ciupe, Duke University
Jonathan Forde, Hobart and William Smith Colleges
David Schaeffer, Duke University
(104892350)

4:30 p.m.
A Model of VaricellaZoster Virus Reactivation.
Jonathan Forde*, Hobart and William Smith Colleges
Bailey Meeker, Hobart and William Smith Colleges
(104892355)

Saturday April 4, 2009, 2:30 p.m.4:50 p.m.
Special Session on Numerical Solution of Partial Differential Equations and Applications, II
Room 110, Withers Hall Organizers: Alina Chertock, North Carolina State University
Zhilin Li, North Carolina State University zhilin@math.ncsu.edu

2:30 p.m.
Adaptive Cellaverage Spectral Element Methods for transient Wigner Equations in quantum transport.
Wei Cai*, University of North Carolina at Charlotte
(104865382)

3:00 p.m.
High order finite difference schemes for wave equation in heterogeneous media.
Kazufumi Ito*, North Carolina State University
(104865375)

3:30 p.m.
An adaptive fast multipole algorithm for electrostatic interactions in biomolecular systems.
Jingfang Huang*, University of North Carolina, Chapel Hill
Benzhuo Lu, Academy of Mathematics and Systems Science, Chinese Academy of Sciences, Beijing, China
Xiaolin Cheng, Center for Molecular Biophysics, Oak Ridge National Laboratory
J. Andrew McCammon, University of California at San Diego and Howard Hughes Medical Institute
(104865144)

4:00 p.m.
Maximizing Distinguishibility Using Optimal Source In Optical Tomography.
Taufiquar R Khan*, Clemson University
Peter Maass, University of Bremen, Germany
Bonnie McAdoo, Clemson University
(104835315)

4:30 p.m.
A Velocity Decomposition Approach for Moving Interfaces in Viscous Fluids.
Anita T Layton*, Duke University
(104865154)

Saturday April 4, 2009, 2:30 p.m.5:20 p.m.
Special Session on Applications of Dynamical Systems to Problems in Biology, II
Room 461, Riddick Hall Organizers: John E. Franke, North Carolina State University franke@math.ncsu.edu
James F. Selgrade, North Carolina State University

2:30 p.m.
Worker Bee Aggression Towards a Foreign Queen: Comparing Deterministic and Stochastic Models with Empirical Data.
Wyatt A. Mangum, University of Mary Washington
Suzanne Sumner*, University of Mary Washington
(10489221)

3:00 p.m.
A Nonlinear Difference Equation Model of the Population Biology and Resistance Evolution of the Mite Varroa destructor, a Parasite of Honey Bees.
Wyatt A. Mangum*, University of Mary Washington
(10489222)

3:30 p.m.
Mathematical Model For Optimal Use of SulfadoxinePyrimethamine As A Temporary Malaria Vaccine.
AbdulAziz Yakubu*, Howard University
Bassidy Dembele, Grambling State University
Avner Friedman, Ohio State University and MBI
(104892306)

4:00 p.m.
An agestructured twostrain epidemic model with superinfection.
XueZhi Li, Xinyang Normal University
JiXuan Liu, Xinyang Normal University
Maia Martcheva*, University of Florida
(104892381)

4:30 p.m.
A Stochastic Model of a Pioneer/Climax Interaction.
J Robert Buchanan*, Millersville University
(104837140)

5:00 p.m.
Dynamics of plantherbivore models with monotone plant growth rate.
Yun Kang*, Arizona State University
Dieter Armbruster, Arizona State University
Yang Kuang, Arizona State University
(104837120)

Saturday April 4, 2009, 2:30 p.m.5:20 p.m.
Special Session on Commutative Rings and Monoids, II
Room 301, Riddick Hall Organizers: Scott T. Chapman, Sam Houston State University scott.chapman@shsu.edu
James B. Coykendall, North Dakota State University

2:30 p.m.
On the arithmetic of Krull monoids with finite Davenport constant.
Alfred Geroldinger*, KarlFranzensUniversity Graz
(10481393)

3:00 p.m.
Factorization in integral domains without identity.
Dan Anderson*, The University of Iowa
Jonathan Preisser, The University of Iowa
(10481395)

3:30 p.m.
Syzygy Sequences and Divisor Sequences for Finitely Generated Krull Monoids.
Terri Moore*, Seattle University
(104813233)

4:00 p.m.
Higher order class groups and block monoids of Krull monoids.
Wolfgang A Schmid*, University of Graz, Austria
(104813125)

4:30 p.m.
On Matrix Factorization.
Donald Adams, San Diego State University
Rene Ardila, City College of New York
David Hannasch, University of Nevada, Las Vegas
Audra Kosh, University of California, Santa Barbara
Hanah McCarthy, Lawrence University
Vadim Ponomarenko*, San Diego State University
Ryan Rosenbaum, San Diego State University
(104811142)

5:00 p.m.
On the arithmetic of certains noetherian domains.
Florian Kainrath*, Karl Franzens Universitaet Graz
(104813299)

Saturday April 4, 2009, 2:30 p.m.4:50 p.m.
Special Session on Mathematical Progress and Challenges for Biological Materials, II
Room 317, Riddick Hall Organizers: Mansoor A. Haider, North Carolina State University m_haider@ncsu.edu
Gregory Forest, University of North Carolina, Chapel Hill

Saturday April 4, 2009, 2:30 p.m.4:50 p.m.
Special Session on Algebraic Groups and Symmetric Spaces, II
Room 319, Riddick Hall Organizers: Stacy Beun, Cabrini College slb96@cabrini.edu
Aloysius Helminck, North Carolina State University

2:30 p.m.
Bilinear Forms on $V=k^n$ and Involutions of SL(n,k) and SO(n,k,$\beta$).
Christopher Dometrius*, LenoirRhyne University
Aloysius Helminck, North Carolina State University
Ling Wu, Microsoft Corporation
(104815347)

3:00 p.m.
Classification of isomorphism classes of involutions of SO(2n,k).
John M. Absher*, NCSU
A. Helminck, NCSU
(104822209)

3:30 p.m.
Classification of $k$involutions of $SP(2n,k)$.
Farrah Jackson Chandler*, Elizabeth City State University
(104808320)

4:00 p.m.
On Commuting Involutions of SL(n, $k$).
Kyle Thompson*, North Carolina State University
(104800167)

4:30 p.m.
Classifying conjugacy classes of maximal $(\theta,k)$split tori in SL$(n,k)$.
Stacy L. Beun*, Cabrini College
(104820332)

Saturday April 4, 2009, 2:30 p.m.5:20 p.m.
Special Session on KacMoody Algebras, Vertex Algebras, Quantum Groups, and Applications, II
Room 321, Riddick Hall Organizers: Bojko N. Bakalov, North Carolina State University bojko_bakalov@ncsu.edu
Naihuan N. Jing, North Carolina State University
Kailash C. Misra, North Carolina State University

2:30 p.m.
Tridiagonal pairs of $q$Racah type.
Paul M Terwilliger*, University of WisconsinMadison
(104816279)

3:00 p.m.
Modular representations of wreath Hecke algebras and crystals.
Jinkui Wan, University of Virginia
Weiqiang Wang*, University of Virginia
(104816141)

3:30 p.m.
A conjectural presentation of fusion algebras.
Shrawan Kumar*, University of North Carolina, Chapel Hill
(10482251)

4:00 p.m.
Title: Braided Vertex Algebras, Semiinfinite Cohomology and Quantum Group.
Anton Zeitlin*, Yale University
Igor Frenkel, Yale University
(10488165)

4:30 p.m.
Non Associativity for Quantum Vertex Algebras.
Maarten Bergvelt*, University of Illinois, UrbanaChampaign
(104817256)

5:00 p.m.
Vertex algebras: generalized, twisted and quantuma comparison.
Iana I Anguelova*, Stony Brook University, NY and College of Charleston, SC
(104881216)

Saturday April 4, 2009, 2:30 p.m.4:50 p.m.
Special Session on Deferred Correction Methods and their Applications, II
Room 105, Withers Hall Organizers: Elizabeth L. Bouzarth, Duke University bouzarth@math.duke.edu
Anita T. Layton, Duke University

2:30 p.m.
The parareal algorithm and spectral deferred corrections.
Michael L Minion*, University of North Carolina
(104865158)

3:00 p.m.
Semiimplicit spectral deferred correction decoupling methods for a parabolic two domain problem.
Jeffrey M. Connors, University of Pittsburgh
Alexander E. Labovsky*, University of Missouri  Columbia
(104865210)

3:30 p.m.
Semiimplicit Preconditioning Techniques for Krylov Deferred Correction Methods.
Sun young Bu*, University of North Carolina at Chapel hill
Jingfang Huang, University of North Carolina at Chapel hill
Michael Minion, University of North Carolina at Chapel hill
(104865276)

4:00 p.m.
Stable and Spectrally Accurate Schemes for NavierStokes Equations.
Jun Jia*, Oak Ridge National Laboratory
(104865311)

4:30 p.m.
Krylov Deferred Correction Accelerated High Order Symplectic Methods.
Jingfang Huang*, University of North Carolina, Chapel Hill
Quandong Feng, College of Science, Beijing Foresty University, Beijing, China
(104865181)

Saturday April 4, 2009, 2:30 p.m.4:50 p.m.
Special Session on Stochastic Dynamics, II
Room 130, Withers Hall Organizers: Yuri Bakhtin, Georgia Institute of Technology
Scott McKinley, Duke University
Jonathan C. Mattingly, Duke University jonm@math.duke.edu

Saturday April 4, 2009, 2:30 p.m.5:50 p.m.
Special Session on the Mathematics of Biochemical Reaction Networks, II
Room 232A, Withers Hall Organizers: Anne Shiu, University of California Berkeley
Manoj Gopalkrishnan, University of Southern California
Gheorghe Craciun, University of WisconsinMadison craciun@math.wisc.edu

2:30 p.m.
Remarks on Interconnections, Modularity, and Dynamics in Systems Biology.
Eduardo D Sontag*, Rutgers University
(10489258)

3:30 p.m.
PassivityBased Stability Analysis and Applications to Biochemical Reaction Networks.
Murat Arcak*, University of California Berkeley
Eduardo Sontag, Rutgers University
(10483450)

4:00 p.m.
Graphtheoretic characterizations of monotonicity of chemical networks in reaction coordinates.
Patrick De Leenheer*, University of Florida
David Angeli, Imperial College
Eduardo Sontag, Rutgers University
(104834275)

4:30 p.m.
The deficiency zero theorem for stochastically modeled systems.
David F Anderson*, University of Wisconsin, Madison
(104860314)

5:00 p.m.
Multistationarity in subnetworks of biochemical reaction networks.
Carsten Conradi*, MaxPlanckInstitute Magdeburg
(104893312)

5:30 p.m.
On the Mathematics of the Law of Mass Action.
Manoj Gopalkrishnan*, Mumbai, India
(104834219)

Saturday April 4, 2009, 2:30 p.m.5:20 p.m.
Special Session on Applications of Algebraic and Geometric Combinatorics, II
Room 140, Withers Hall Organizers: Seth M. Sullivant, North Carolina State University smsulli2@ncsu.edu
Carla D. Savage, North Carolina State University

2:30 p.m.
Asymptotics of Ehrhart series of Lattice Polytopes.
Matthias Beck*, San Francisco State University
Alan Stapledon, University of Michigan
(104805127)

3:00 p.m.
The Complex of NonCrossing Diagonals of a Polygon.
Benjamin J Braun*, University of Kentucky
Richard Ehrenborg, University of Kentucky
(104805187)

3:30 p.m.
Efficient exact integration of polynomials over polytopes.
Velleda Baldoni, Università degli studi di Roma "Tor Vergata"
Nicole Berline, Centre de Mathématiques Laurent Schwartz
Jesús A. De Loera, University of California, Davis
Matthias Köppe*, University of California, Davis
Michèle Vergne, Centre de Mathématiques Laurent Schwartz
(104805261)

4:00 p.m.
Defining $k$triangulations for points in general position in the $d$dimensional space.
Carlos M Nicolas*, University of North Carolina at Greensboro
(104852242)

4:30 p.m.
A new look at the partition identities of Goellnitz.
Sylvie Corteel, Université Paris XI
Carla Savage, North Carolina State University
Andrew V Sills*, Georgia Southern University
(104805105)

5:00 p.m.
Combinatorics and Graphical Models: investigating inference functions.
Kevin Woods*, Oberlin College
(104805213)

Saturday April 4, 2009, 2:30 p.m.5:20 p.m.
Special Session on Homotopical Algebra with Applications to Mathematical Physics, II
Room 451, Riddick Hall Organizers: Thomas J. Lada, North Carolina State University lada@math.ncsu.edu
Jim Stasheff, University of North Carolina, Chapel Hill

2:30 p.m.
Linfinity algebras and Lie 2algebras.
Alissa S. Crans*, Loyola Marymount University
(10481887)

3:00 p.m.
The homology of a DG bialgebra is an $A_\infty$bialgebra.
Samson Saneblidze, A. Razmadze Mathematical Institute
Ronald Umble*, Millersville University of Pennsylvania
(10485528)

3:30 p.m.
Finite time computation of Ainfinity algebra structures on Ext algebras.
Mikael VejdemoJohansson*, Stanford University
(10481714)

4:00 p.m.
Visibility and deformations of associahedra.
Satyan L Devadoss*, Williams College
(10480535)

4:30 p.m.
Polytopes, positrons, and antipodes.
S. Forcey*, Tennessee State Univeristy
A. Lauve, Texas A&M
F. Sottile, Texas A&M
(104816130)

5:00 p.m.
Bar constructions and Quillen homology of modules over operads.
John E Harper*, Postdoc/ EPFL (Lausanne, Switzerland)
(10485526)

Saturday April 4, 2009, 2:30 p.m.5:10 p.m.
Special Session on Low Dimensional Topology and Geometry, II
Room 314, Riddick Hall Organizers: Nathan M. Dunfield, University of Illinois at UrbanaChampaign nmd@uiuc.edu
John B. Etnyre, Georgia Institute of Technology
Lenhard Ng, Duke University

Saturday April 4, 2009, 2:30 p.m.4:50 p.m.
Special Session on Recent Advances in Symbolic Algebra and Analysis, II
Room 120, Withers Hall Organizers: Michael F. Singer, North Carolina State University singer@ncsu.edu
Agnes Szanto, North Carolina State University

2:30 p.m.
Supersparse black box rational function interpolation.
Erich L. Kaltofen, North Carolina State University
Michael P. Nehring*, North Carolina State University
(104812174)

3:00 p.m.
On effective differential Nullstellensatz.
Oleg Golubitsky, University of Western Ontario
Marina Kondratieva, Moscow State University
Alexey Ovchinnikov*, University of Illinois at Chicago
Agnes Szanto, North Carolina State University
(104812129)

3:30 p.m.
Symbolic Computation of Lax Pairs of TwoDimensional Nonlinear Partial Difference Equations.
Willy A Hereman*, Colorado School of Mines
(10483971)

4:00 p.m.
Moving frames and Noether's Theorem.
Elizabeth L Mansfield*, University of Kent
(10483491)

4:30 p.m.
Lie's Theorem and its Applications.
Ian Anderson*, Utah State Univ.
Evelyne Hubert, INRIA
(104815156)

Saturday April 4, 2009, 2:30 p.m.5:20 p.m.
Special Session on Rings, Algebras, and Varieties in Combinatorics, II
Room 150, Withers Hall Organizers: Patricia Hersh, North Carolina State University phersh@indiana.edu
Christian Lenart, SUNY Albany
Nathan Reading, North Carolina State University

2:30 p.m.
Total positivity for loop groups.
Thomas Lam*, Harvard University
Pavlo Pylyavskyy, University of Michigan, Ann Arbor
(10480567)

3:00 p.m.
Positivity results for cluster algebras.
Gregg Musiker, MIT
Ralf Schiffler, University of Connecticut
Lauren Williams*, Harvard
(10480561)

3:30 p.m.
Noncrossing and nonnesting bases for the coordinate ring of the Grassmannian.
David E Speyer*, MIT/Clay Mathematics Institute
Pavlo Pylyavskyy, University of Michigan
Kyle Petersen, University of Michigan
(104805254)

4:00 p.m.
Pieri rules.
Julianna Tymoczko*, University of Iowa
(104814352)

4:30 p.m.
RookbyRook Rook Theory.
Nicholas A. Loehr*, Virginia Tech
Jeffrey Remmel, UCSD
(104805152)

5:00 p.m.
The Veronese construction, hvectors, and unimodality.
Francesco Brenti*, Universita' di Roma "Tor Vergata"
(104805301)

Saturday April 4, 2009, 2:30 p.m.4:50 p.m.
Special Session on Enumerative Geometry and Related Topics, II
Room 115, Withers Hall Organizers: Richard L. Rimanyi, University of North Carolina, Chapel Hill
Leonardo C. Mihalcea, Duke University lmihalce@math.duke.edu

Saturday April 4, 2009, 2:30 p.m.5:20 p.m.
Special Session on Advancements in Turbulent Flow Modeling and Computation, II
Room 145, Withers Hall Organizers: Leo G. Rebholz, Clemson University ler6@math.pitt.edu
Traian Iliescu, Virginia Polytechnic Institute and State University

2:30 p.m.
Discussion.

3:00 p.m.
The NSalphadeconvolution turbulence model.
Leo G Rebholz*, Clemson University
Myron M Sussman, University of Pittsburgh
(10487648)

3:30 p.m.
The 2D NavierStokesVoight and 2D damped NavierStokes equations for image inpainting.
Mow Ebrahimi, University of California San Diego
Michael Holst, University of California San Diego
Evelyn M. Lunasin*, University of California San Diego
Edriss S. Titi, University of California Irvine and Weizmann Institute of Science
(104876170)

4:00 p.m.
A Comparison of Turbulent Thermal Convection Between Conditions of Constant Temperature and Constant Flux.
Hans Johnston*, University of MassachusettsAmherst
C.R. Doering, University of Michigan
C. Wang, University of MassachusettsDartmouth
J.G. Liu, Duke University and University of Maryland
(104876205)

4:30 p.m.
Approximate Deconvolution Models for MagnetoHydroDynamic Turbulence.
Alexander Labovsky*, University of Missouri  Columbia
Catalin Trenchea, University of Pittsburgh
(104865252)

5:00 p.m.
Twolevel finite element approximation of NavierStokes equations with nonlinear subgridscale artificial viscosity.
John Paul Roop*, North Carolina A & T State University
Traian Iliescu, Virginia Polytechnic Institute and State University
(10486536)

Saturday April 4, 2009, 2:30 p.m.5:20 p.m.
Special Session on Geometry of Differential Equations, II
Room 160, Withers Hall Organizers: Thomas A. Ivey, College of Charleston
Irina A. Kogan, North Carolina State University iakogan@ncsu.edu

2:30 p.m.
Green's function for the Hodge Laplacian on some classes of Riemannian and Lorentzian symmetric spaces.
Niky Kamran*, McGill University
(104853229)

3:00 p.m.
Klein geometry, group invariant soliton equations, and biHamiltonian geometric curve flows.
Stephen Anco*, Brock University
(104835364)

3:30 p.m.
Moving frames, variational problems, and geometric flows.
Peter J Olver*, University of Minnesota
(10485857)

4:00 p.m.
On the preservation of invariants of arclength type by geometric Hamiltonian curve flows.
Gloria Mari Beffa*, University of Wisconsin, Madison
(10485382)

4:30 p.m.
Geometry of Hyperbolic Conservation Laws.
Kris Jenssen*, Penn State University
Irina Kogan, North Carolina State University
(10483568)

5:00 p.m.
Austere Submanifolds of Dimension 4.
Marianty Ionel*, University of Toledo
Thomas Ivey, College of Charleston
(104853372)

Saturday April 4, 2009, 7:00 p.m.8:00 p.m.
Einstein Public Lecture in Mathematics
Reading DNA sequences: Twentyfirst century technology with eighteenth century mathematics.
3400, Nelson Hall
Michael S. Waterman*, University of Southern California
(10489210)
Sunday April 5, 2009

Sunday April 5, 2009, 8:00 a.m.12:00 p.m.
Meeting Registration
Foyer, Riddick Hall

Sunday April 5, 2009, 8:00 a.m.10:50 a.m.
Special Session on Computational Methods in Lie Theory, III
Room 339, Riddick Hall Organizers: Eric Sommers, University of Massachusetts, Amherst esommers@math.umass.edu
Molly Fenn, North Carolina State University

Sunday April 5, 2009, 8:00 a.m.10:20 a.m.
Special Session on Nonlinear Dynamics and Control, II
Room 135, Withers Hall Organizers: Anthony M. Bloch, University of Michigan, Ann Arbor
Dmitry Zenkov, North Carolina State University dvzenkov@ncsu.edu

8:00 a.m.
Energy Shaping for Stabilization of Mechanical Systems.
Dong Eui Chang*, Applied Mathematics/University of Waterloo
(104893265)

8:30 a.m.
Relaxed Matching for Stabilization of Lagrangian Systems.
David A Long*, North Carolina State University
Anthony M Bloch, University of Michigan
Jerrold E Marsden, California Institute of Technology
Dmitry V Zenkov, North Carolina State University
(104870287)

9:00 a.m.
Feedforward/Feedback Tracking of a First Order Approximate Equilibrium Manifold.
Nina Mahmoudian*, Virginia Tech
Craig Woolsey, Virginia Tech
(104893331)

9:30 a.m.
Pressureless Euler/EulerPoisson systems via adhesion dynamics.
Truyen Nguyen*, University of Akron
Adrian Tudorascu, University of WisconsinMadison
(104835188)

10:00 a.m.
The parabolic compactification and applications to dynamical systems.
Harry Gingold*, West Virginia University
(10483492)

Sunday April 5, 2009, 8:00 a.m.10:50 a.m.
Special Session on Brauer Groups, Quadratic Forms, Algebraic Groups, and Lie Algebras, III
Room 325, Riddick Hall Organizers: Eric S. Brussel, Emory University
Skip Garibaldi, Emory University skip@mathcs.emory.edu

8:00 a.m.
The $u$invariant of a function field over $Q_p$.
David B. Leep*, University of Kentucky
(104811249)

8:30 a.m.
Field Invariants under Real and Nonreal Extensions.
Claus Schubert*, SUNY Cortland
(10481180)

9:00 a.m.
On graded polynomial identities of matrices.
Michael Natapov*, Indiana University, Bloomington
Darrell Haile, Indiana University, Bloomington
(104816244)

9:30 a.m.
On the Okubo product and a theorem of Rost.
Darrell E. Haile*, Indiana University
JeanPierre Tignol, Universite catholique de Louvain
(104816178)

10:00 a.m.
Essential dimension of Jordan algebras.
Mark L MacDonald*, University of British Columbia
(104817121)

10:30 a.m.
Quadrics over the field with one element.
MaxAlbert Knus, ETH Zurich
JeanPierre Tignol*, Universite catholique de Louvain, LouvainlaNeuve
(104811223)

Sunday April 5, 2009, 8:00 a.m.10:50 a.m.
Special Session on Commutative Rings and Monoids, III
Room 301, Riddick Hall Organizers: Scott T. Chapman, Sam Houston State University scott.chapman@shsu.edu
James B. Coykendall, North Dakota State University

Sunday April 5, 2009, 8:00 a.m.10:50 a.m.
Special Session on KacMoody Algebras, Vertex Algebras, Quantum Groups, and Applications, III
Room 321, Riddick Hall Organizers: Bojko N. Bakalov, North Carolina State University bojko_bakalov@ncsu.edu
Naihuan N. Jing, North Carolina State University
Kailash C. Misra, North Carolina State University

8:00 a.m.
Poisson structures on flag varieties.
Milen T Yakimov*, Louisiana State University
(104822237)

8:30 a.m.
Complexity and varieties for modules over Lie superalgebras.
Brian D. Boe, University of Georgia
Jonathan R. Kujawa, University of Oklahoma
Daniel K. Nakano*, University of Georgia
(104817163)

9:00 a.m.
Reduced standard and costandard modules.
Brian Parshall*, University of Virginia
(104820289)

9:30 a.m.
Regular representations of quantum groups at roots of unity.
Minxian Zhu*, Rutgers University
(104816201)

10:00 a.m.
Hyperbolic Weyl groups and related Coxeter groups.
Alex J Feingold*, State University of New York, Binghamton, NY
(104817246)

10:30 a.m.
Representations of Multiloop Algebras.
Michael K Lau*, University of Windsor
(104817291)

Sunday April 5, 2009, 8:00 a.m.10:50 a.m.
Special Session on the Mathematics of Biochemical Reaction Networks, III
Room 105, Withers Hall Organizers: Anne Shiu, University of California Berkeley
Manoj Gopalkrishnan, University of Southern California
Gheorghe Craciun, University of WisconsinMadison craciun@math.wisc.edu

8:00 a.m.
Algebraic geometric approaches to biological complexity.
Jeremy Gunawardena*, Harvard Medical School
(104892131)

9:00 a.m.
How far is complex balancing from detailed balancing?
Alicia Dickenstein*, Dto. de Matemática, FCEN, Universidad de B. Aires, Argentina
Mercedes Pérez Millán, Dto. de Matemática, FCEN, Universidad de B. Aires, Argentina
(104892135)

9:30 a.m.
Combinatorics of binomial primary decomposition.
Alicia Dickenstein, Universidad de Buenos Aires
Laura Felicia Matusevich, Texas A&M University
Ezra Miller*, Duke University
(104813172)

10:00 a.m.
Injectivity of toric patches.
Luis D GarciaPuente*, Sam Houston State University
Gheorghe Craciun, University of WisconsinMadison
Frank Sottile, Texas A&M University
(10481453)

10:30 a.m.
The infancy of trilinear algebra.
Jose Antonio Vargas*, CIIDIROaxaca, IPN; Mexico
(10481474)

Sunday April 5, 2009, 8:00 a.m.10:50 a.m.
Special Session on Applications of Algebraic and Geometric Combinatorics, III
Room 140, Withers Hall Organizers: Seth M. Sullivant, North Carolina State University smsulli2@ncsu.edu
Carla D. Savage, North Carolina State University

8:00 a.m.
On connectivity of fibers with positive marginals in multiple logistic regression.
Hisayuki Hara, University of Tokyo
Akimichi Takemura, University of Tokyo
Ruriko Yoshida*, University of Kentucky
(10480584)

8:30 a.m.
Phylogenetic Tree Spaces and Phylogenetic Reconstruction Algorithms.
Serkan Hosten*, San Francisco State University
(104852240)

9:00 a.m.
Geometry of Cophylogeny.
Megan Owen*, Statistical and Applied Mathematical Sciences Institute
(104805330)

9:30 a.m.
Meanders and RNA Folding.
Christine E Heitsch*, Georgia Institute of Technology
(104805309)

10:00 a.m.
Basis reduction, and the complexity of branchandbound.
Gabor Pataki*, University of North Carolina, Chapel Hill
Mustafa Tural, University of North Carolina, Chapel Hill
(10480518)

10:30 a.m.
On sublattice determinants in reduced bases.
Gábor Pataki, Department of Statistics and Operations Research, UNC Chapel Hill
Mustafa Kemal Tural*, Department of Statistics and Operations Research, UNC Chapel Hill
(104849264)

Sunday April 5, 2009, 8:00 a.m.10:50 a.m.
Special Session on Low Dimensional Topology and Geometry, III
Room 314, Riddick Hall Organizers: Nathan M. Dunfield, University of Illinois at UrbanaChampaign nmd@uiuc.edu
John B. Etnyre, Georgia Institute of Technology
Lenhard Ng, Duke University

8:00 a.m.
A categorification of the $SU(2)$ ReshetikhinTuraev invariant of links in $S^2 \times S^1$.
Lev Rozansky*, University of North Carolina
Mikhail Khovanov, Columbia University
(104857307)

9:00 a.m.
Quantum invariants of random Heegaard splittings.
Nathan Dunfield, University of Illinois at UrbanaChampaign
Helen Wong*, Bowdoin College
(104857224)

9:30 a.m.
The Khovanov width of twisted links and closed 3braids.
Adam Lowrance*, Louisiana State University
(104857108)

10:00 a.m.
$L^2$torsion, Mahler measure, and homology growth.
Thang Le*, Georgia Insitute of Technology
(104857190)

10:30 a.m.
Thin Position of knots and 3manifolds.
Hugh N Howards*, Wake Forest University
Jennifer Schultens, UC Davis
(104857114)

Sunday April 5, 2009, 8:00 a.m.10:50 a.m.
Special Session on Rings, Algebras, and Varieties in Combinatorics, III
Room 150, Withers Hall Organizers: Patricia Hersh, North Carolina State University phersh@indiana.edu
Christian Lenart, SUNY Albany
Nathan Reading, North Carolina State University

8:00 a.m.
Hall Littlewood Polynomials and the Nabla Operator from Macdonald Theory.
J. Haglund*, University of Pennsylvania
J. Morse, Drexel University
M. Zabrocki, York University
(104805198)

8:30 a.m.
On the gconjecture.
Eran Nevo*, Cornell University
(10480525)

9:00 a.m.
A variety of recent results concerning fvectors of manifolds.
Isabella Novik*, University of Washington, Seattle
Edward B Swartz, Cornell University
(10480555)

9:30 a.m.
fvectors of manifolds with boundary.
Isabella Novik, University of Washington, Seattle
Edward Swartz*, Cornell University
(10480556)

10:00 a.m.
Hopf structures on binary trees (variations on a theme).
Stefan Forcey, Tennessee State University
Aaron Lauve*, Texas A&M University
Frank Sottile, Texas A&M University
(104816348)

10:30 a.m.
MacMahon master theorem in Hecke algebras.
Matjaz Konvalinka*, Vanderbilt University
(104805218)

Sunday April 5, 2009, 8:00 a.m.10:50 a.m.
Special Session on Geometry of Differential Equations, III
Room 160, Withers Hall Organizers: Thomas A. Ivey, College of Charleston
Irina A. Kogan, North Carolina State University iakogan@ncsu.edu

8:00 a.m.
A fresh look at Darboux integrability for hyperbolic secondorder differential equation in the plane.
Martin Juras*, Qatar University
(10483575)

8:30 a.m.
Symmetry classification of General rank3 Pfaffian systems in 5dimension.
Francesco Strazzullo*, Utah State University
(104835166)

9:00 a.m.
Pseudogroups, Moving Frames, and Invariant Variational Principles.
Juha Pohjanpelto*, Oregon State University
(104858161)

9:30 a.m.
Bäcklund Transformations via Symmetry Reduction.
Ian Anderson*, Utah State Univ.
Mark Fels, Utah State Univ.
(104853153)

10:00 a.m.
HamiltonJacobi theory in Minkowski space via Cartan geometry.
Roman Smirnov*, Dalhousie University
(104853310)

10:30 a.m.
Stability of Relative Equilibria of Discrete Nonholonomic Systems.
Cameron Lynch, North Carolina State University
Dmitry V Zenkov*, North Carolina State University
(104870288)

Sunday April 5, 2009, 8:00 a.m.10:55 a.m.
Session for Contributed Papers
Room 461, Riddick Hall

8:00 a.m.
An introduction to (coloured) constant composition designs.
Ryan K Therkelsen*, North Carolina State University
(104805186)

8:15 a.m.
Multipliers for the Lower Central Series of Strictly Upper Triangular Matrices.
Louis A. Levy*, North Carolina State University
(10481799)

8:30 a.m.
Realizations of the Complex Nilpotent Lie Algebras with Small Second Derived Quotient.
Laurie Zack*, High Point University
(104817132)

8:45 a.m.
Multipliers of Lie Algebras of Maximal Class.
Lindsey R. Bosko*, NC State University
(104817206)

9:00 a.m.
On Class of Spaces of Holomorphic and Pluriharmonic Functions on Bounded Symmetric Domains in $C^n(n1)$.
Maher M.H. Marzuq*, Mount Olive College
(10483208)

9:15 a.m.
Positive Solutions for Boundary Value Problems of the Beam Equation.
Bo Yang*, Kennesaw State University
(104834371)

9:30 a.m.
Separation of Variables and Integrability in 4dimensional Space  An Example.
Zora Thomova*, SUNY Institute of Technology
(104835294)

9:45 a.m.
Boundedness and Global Attractivity of Solutions for a System of Nonlinear Integral Equations.
Bo Zhang*, Fayetteville State University
(104845159)

10:00 a.m.
Optimization of DelayDifferential Inclusions in Infinite Dimensions.
Dong Wang*, Fayetteville State University
(104849184)

10:15 a.m.
Spherical dihedral ftriangulations.
Ana Maria Breda*, University of Aveiro
Patrica Ribeiro, Escola Superior de Tecnologia de Setúbal
(10485107)

10:30 a.m.
The Hessian of a Harmonic Reduction.
Carlos J Almada*, Columbus State University
(104853104)

10:45 a.m.
More On The Exact Solutions Of The Second Order Linear Homogeneous Differential Equations.
Saeed Otarod*, Yasouj University
Mohamad Reeza Khodakarim Ardekani, Zanjan University
(10483413)

Sunday April 5, 2009, 8:00 a.m.12:00 p.m.
Exhibit and Book Sale
Foyer, Riddick Hall

Sunday April 5, 2009, 8:30 a.m.9:50 a.m.
Special Session on Galois Module Theory and Hopf Algebras, III
Room 315, Riddick Hall Organizers: Robert G. Underwood, Auburn University Montgomery runderwo@aum.edu
James E. Carter, College of Charleston

Sunday April 5, 2009, 8:30 a.m.10:50 a.m.
Special Session on Mathematics of Immunology and Infectious Diseases, III
Room 450, Riddick Hall Organizers: Stanca M. Ciupe, Duke University stanca.ciupe@duke.edu
Jonathan Forde, Hobart and William Smith Colleges

8:30 a.m.
Incorporating Continuous, AntigenDependent TCell Differentiation in Viral Infection Dynamics.
Brynja Raquel Kohler*, Utah State University
(104892112)

9:00 a.m.
A General Model of Inflammation.
Meagan C Herald*, Viginia Military Institute
(10489294)

9:30 a.m.
A mathematical model of the immune system's role in obesityrelated chronic inflammation.
Toby L Shearman*, Virginia Tech
Pablo Diaz, University of North Carolina at Greensboro
Michael Gillespie, St. Augustine's College
Justin Krueger, Miami University
Jose Perez, University of Puerto Rico, Mayaguez Campus
Alex Radebaugh, Bucknell University
Garret Vo, Montana State University
Christine Wheatley, Alma College
(10489264)

10:00 a.m.
A modelbased approach to multiparameter flow cytometry analysis.
Cliburn C Chan*, Duke University
(104862358)

10:30 a.m.
Mathematical Models of Tcell Development.
Stanca Ciupe*, Duke University Medical Center
Louise M Markert, Duke University Medical Center
Blythe Devlin, Duke University Medical Center
Thomas Kepler, Duke University Medical Center
(104834357)

Sunday April 5, 2009, 8:30 a.m.10:50 a.m.
Special Session on Numerical Solution of Partial Differential Equations and Applications, III
Room 110, Withers Hall Organizers: Alina Chertock, North Carolina State University
Zhilin Li, North Carolina State University zhilin@math.ncsu.edu

8:30 a.m.
NonOscillatory Central Schemes for Traffic Flow Models with Arrhenius LookAhead Dynamics.
Alexander Kurganov*, Tulane University
(104865318)

9:00 a.m.
CahnHilliard model for moving contact lines.
Pengtao Yue*, Virginia Polytechnic Institute and State University
(10487615)

9:30 a.m.
Fast Explicit Operator Splitting Method for ConvectionDominated Problems.
Alina Chertock*, North Carolina State University
Charles Doering, Univeristy of Michigan
Eugene Kashdan, Tel Aviv University
Alexander Kurganov, Tulane University
Guergana Petrova, Texas A&M University
(104865317)

10:00 a.m.
A PDE Approximation Approach to the Valuation of American Put Option.
Dejun Xie*, University of Delaware
(10489106)

10:30 a.m.
Numerical simulation of laser drilling.
Jeb Collins*, North Carolina State University
Pierre Gremaud, North Carolina State University
(104865116)

Sunday April 5, 2009, 8:30 a.m.10:50 a.m.
Special Session on Homotopical Algebra with Applications to Mathematical Physics, III
Room 451, Riddick Hall Organizers: Thomas J. Lada, North Carolina State University lada@math.ncsu.edu
Jim Stasheff, University of North Carolina, Chapel Hill

Sunday April 5, 2009, 8:30 a.m.10:50 a.m.
Special Session on Recent Advances in Symbolic Algebra and Analysis, III
Room 120, Withers Hall Organizers: Michael F. Singer, North Carolina State University singer@ncsu.edu
Agnes Szanto, North Carolina State University

8:30 a.m.
Computations modulo Regular Chains.
Marc Moreno Maza*, Massachusetts Institute of Technology
Xin Li, University of Western Ontario
Wei Pan, University of Western Ontario
(104814197)

9:00 a.m.
An effective solution methods for systems of polynomial equations arising in applications.
Mireille Boutin*, School of ECE and Dept. of Mathematics, Purdue University
(104813148)

9:30 a.m.
Deciding Feasibility of Polynomial Inequalities by Numerical Filtering.
Douglas David Marks*, NCSU
(104826133)

10:00 a.m.
Finiteness of Local Cohomology over $D$ on a toric algebra.
JenChieh Hsiao*, Purdue University
(104800192)

10:30 a.m.
LittlewoodRichardson Homotopies for Schubert Problems.
Frank Sottile, Texas A&M University
Ravi Vakil, Stanford University
Jan Verschelde*, University of Illinois at Chicago
(104814115)

Sunday April 5, 2009, 9:00 a.m.10:50 a.m.
Special Session on Mathematical Progress and Challenges for Biological Materials, III
Room 317, Riddick Hall Organizers: Mansoor A. Haider, North Carolina State University m_haider@ncsu.edu
Gregory Forest, University of North Carolina, Chapel Hill

Sunday April 5, 2009, 9:00 a.m.10:50 a.m.
Special Session on Stochastic Dynamics, III
Room 130, Withers Hall Organizers: Yuri Bakhtin, Georgia Institute of Technology
Scott McKinley, Duke University
Jonathan C. Mattingly, Duke University jonm@math.duke.edu

Sunday April 5, 2009, 9:00 a.m.10:50 a.m.
Special Session on Enumerative Geometry and Related Topics, III
Room 115, Withers Hall Organizers: Richard L. Rimanyi, University of North Carolina, Chapel Hill
Leonardo C. Mihalcea, Duke University lmihalce@math.duke.edu

Sunday April 5, 2009, 11:10 a.m.12:00 p.m.
Invited Address
Arithmetic of linear algebraic groups over 2dimensional geometric fields.
Room 232A, Withers Hall
Raman Parimala*, Emory University
(10481102)

Sunday April 5, 2009, 1:30 p.m.2:20 p.m.
Invited Address
Algebraic models in systems biology.
Room 232A, Withers Hall
Reinhard C. Laubenbacher*, Virginia Bioinformatics Institute
(10489203)

Sunday April 5, 2009, 2:30 p.m.4:50 p.m.
Special Session on Commutative Rings and Monoids, IV
Room 301, Riddick Hall Organizers: Scott T. Chapman, Sam Houston State University scott.chapman@shsu.edu
James B. Coykendall, North Dakota State University

Sunday April 5, 2009, 2:30 p.m.4:20 p.m.
Special Session on KacMoody Algebras, Vertex Algebras, Quantum Groups, and Applications, IV
Room 321, Riddick Hall Organizers: Bojko N. Bakalov, North Carolina State University bojko_bakalov@ncsu.edu
Naihuan N. Jing, North Carolina State University
Kailash C. Misra, North Carolina State University

Sunday April 5, 2009, 2:30 p.m.5:20 p.m.
Special Session on the Mathematics of Biochemical Reaction Networks, IV
Room 105, Withers Hall Organizers: Anne Shiu, University of California Berkeley
Manoj Gopalkrishnan, University of Southern California
Gheorghe Craciun, University of WisconsinMadison craciun@math.wisc.edu

2:30 p.m.
Homotopy Methods for Counting Reaction Network Equilibria.
G Craciun, University of Wisconsin
J W Helton, University of California, San Diego
R J Williams*, University of California, San Diego
(10489245)

3:00 p.m.
Signed matrices and chemical reaction networks.
J William Helton*, UC San Diego
Igor Klep, University of Ljubljana and UCSD
(10481560)

3:30 p.m.
Dynamical equivalence of chemical reaction networks.
David Swigon*, University of Pittsburgh
(104837271)

4:00 p.m.
Robust Stochastic Chemical Reaction Networks and Bounded TauLeaping.
David Soloveichik*, California Institute of Technology
(104868368)

4:30 p.m.
Number Theory in Chemical Reaction Networks.
Dustin Reishus*, University of Southern California
(104811373)

5:00 p.m.
On the nature of polynomial conservation laws in reversible reaction networks.
Pablo Moisset de Espanes*, Institute for Cell Dynamics and Biotechnology, University of Chile
(104834342)

Sunday April 5, 2009, 2:30 p.m.5:20 p.m.
Special Session on Applications of Algebraic and Geometric Combinatorics, IV
Room 140, Withers Hall Organizers: Seth M. Sullivant, North Carolina State University smsulli2@ncsu.edu
Carla D. Savage, North Carolina State University

2:30 p.m.
See the detail of the talks presented jointly under the listing for the Special Session on Rings, Algebras, and Varieties in Combinatorics, IV.

Sunday April 5, 2009, 2:30 p.m.3:20 p.m.
Special Session on Homotopical Algebra with Applications to Mathematical Physics, IV
Room 451, Riddick Hall Organizers: Thomas J. Lada, North Carolina State University lada@math.ncsu.edu
Jim Stasheff, University of North Carolina, Chapel Hill

Sunday April 5, 2009, 2:30 p.m.4:50 p.m.
Special Session on Recent Advances in Symbolic Algebra and Analysis, IV
Room 120, Withers Hall Organizers: Michael F. Singer, North Carolina State University singer@ncsu.edu
Agnes Szanto, North Carolina State University

Sunday April 5, 2009, 2:30 p.m.5:20 p.m.
Special Session on Rings, Algebras, and Varieties in Combinatorics, IV
Room 140, Withers Hall Organizers: Patricia Hersh, North Carolina State University phersh@indiana.edu
Christian Lenart, SUNY Albany
Nathan Reading, North Carolina State University

2:30 p.m.
These talks are presented jointly with the Special Session on Applications of Algebraic and Geometric Combinatorics.

2:30 p.m.
Cyclic sieving and permutation statistics.
John Shareshian*, Washington University
Michelle Wachs, University of Miami
(104805239)

3:00 p.m.
Rees products of posets and lexicographical shellability.
John Shareshian, Washington University
Michelle L Wachs*, University of Miami
(104805370)

3:30 p.m.
Longest strictly increasing subsequences and the Hecke insertion algorithm.
Alexander Yong*, University of Illinois at UrbanaChampaign
Hugh Thomas, University of New Brunswick
Ofer Zeitouni, University of Minnesota
(10480538)

4:00 p.m.
Rationality, irrationality, and Wilf oequivalence in generalized factor order.
Sergey Kitaev, Reykjavik University
Jeffrey Liese, University of California, San Diego
Jeffrey Remmel, University of California, San Diego
Bruce Sagan*, Michigan State University
(10480516)

4:30 p.m.
Bitableau bases for GarsiaHaiman modules of hollow type.
Edward E. Allen, Wake Forest University
Miranda C. Marion, WinstonSalem, NC
Gregory S. Warrington*, University of Vermont
(104805290)

5:00 p.m.
Topological CohenMacaulay criteria for monomial ideals.
Ezra Miller*, Duke University
(104805169)

Sunday April 5, 2009, 2:30 p.m.3:50 p.m.
Special Session on Enumerative Geometry and Related Topics, IV
Room 115, Withers Hall Organizers: Richard L. Rimanyi, University of North Carolina, Chapel Hill
Leonardo C. Mihalcea, Duke University lmihalce@math.duke.edu

Sunday April 5, 2009, 2:30 p.m.3:20 p.m.
Special Session on Geometry of Differential Equations, IV
Room 160, Withers Hall Organizers: Thomas A. Ivey, College of Charleston
Irina A. Kogan, North Carolina State University iakogan@ncsu.edu
Inquiries: meet@ams.org

