
AMS Sectional Meeting Full Program
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1999 Spring Eastern Sectional Meeting
Buffalo, NY, April 2425, 1999
Meeting #943
Associate secretaries: Lesley M Sibner, AMS lsibner@duke.poly.edu
Saturday April 24, 1999

Saturday April 24, 1999, 7:30 a.m.4:00 p.m.
Meeting Registration
Room 114, Diefendorf Hall

Saturday April 24, 1999, 7:30 a.m.4:00 p.m.
Exhibit and Book Sale
Rotunda, Diefendorf Hall

Saturday April 24, 1999, 8:00 a.m.10:50 a.m.
Special Session on Knot and 3Manifolds, I
Room 2, Diefendorf Hall Organizers: Thang T.Q. Le, State University of New York at Buffalo letu@math.buffalo.edu
William W. Menasco, SUNY at Buffalo menasco@tait.math.buffalo.edu
Morwen B. Thistlethwaite, University of Tennessee morwen@math.utk.edu

8:00 a.m.
Constructing horizontal and vertical compositions in cobordism and tangle double categories.
Thomas Kerler*, The Ohio State Univeristy
Volodymyr V. Lyubashenko, Univerity of Kiev
(94357172)

8:30 a.m.
Positive links are strongly quasipositive.
Lee Rudolph*, Clark University
(94357127)

9:00 a.m.
Nontrivial Invariants of Knotted Surfaces.
J. Scott Carter*, University of South Alabama
Daniel Jelsovsky, University of South Florida
Seiichi Kamada, Osaka City University
Laurel Langford, University of Wisconsin at River Falls
Masahico Saito, University of South Florida
(9435794)

9:30 a.m.
Coloring Virtual Knots and Links.
Daniel S. Silver*, Univ. of South Alabama
Susan G. Williams, Univ. of South Alabama
(94357120)

10:00 a.m.
Ordering groups of pure braids and hyperplane arrangements.
Dale P. Rolfsen*, Univ. of BC
Djun M Kim, Univ. of BC
(9435522)

10:30 a.m.
Continuous Fraction expansions for Surface Diffeomorphisms.
Klaus Johannson*, University of Tennessee
(94357117)

Saturday April 24, 1999, 8:00 a.m.10:50 a.m.
Special Session on Representations of Lie Algebras, I
Room 8, Diefendorf Hall Organizers: Duncan J. Melville, Saint Lawrence University dmel@music.stlawu.edu

8:00 a.m.
Generalized Cartan type H Lie algebras.
Yuting Jia*, Queen's University
(9431748)

8:30 a.m.
The Fourier transform on finite and padic Lie algebras.
Clifton Cunningham*, University of Massachusetts at Amherst
(94322125)

9:00 a.m.
Centralizer Algebras of $SO(2n, {\Bbb C})$.
Cheryl P. Grood*, Swarthmore College
(9431743)

9:30 a.m.
Tensor Product Realizations of Torsion Free Lie Modules.
Francis W Lemire*, University of Windsor
Daniel J Britten, University of Windsor
(9431724)

10:00 a.m.
On the Goldie Quotient Ring of the Enveloping Algebra of a Classical Simple Lie Superalgebra.
Ian M. Musson*, University of WisconsinMilwaukee
(9431742)

10:30 a.m.
Downup Algebras and Weyl Algebras.
Georgia Benkart*, University of Wisconsin, Madison
(9431684)

Saturday April 24, 1999, 8:00 a.m.10:40 a.m.
Special Session on Complex Geometry, I
Room 103, Diefendorf Hall Organizers: Terrence Napier, Lehigh University tjn2@lehigh.edu
Mohan Ramachandran, State University of New York at Buffalo ramacm@newton.math.buffalo.edu

8:00 a.m.
Transversely holomorphic foliations and CR structures.
Howard Jacobowitz*, Rutgers University
(9433297)

9:00 a.m.
On the Projection of Runge Domains.
Cezar Joita*, SUNY at Buffalo
(9433282)

10:00 a.m.
Latticeinvariant Riemann surfaces in the ball.
Finnur L\'arusson*, University of Western Ontario
(9433293)

Saturday April 24, 1999, 8:40 a.m.10:50 a.m.
Special Session on Integrable Systems, I
Room 104, Diefendorf Hall Organizers: Mich\'ele Audin, Universit\'e Louis Pasteur et NCRS maudin@math.ustrasbg.fr
Lisa Claire Jeffrey, University of Toronto jeffrey@math.toronto.edu

8:40 a.m.
A New Class of Homogeneous Manifolds with LiouvilleIntegrable Geodesic Flows.
Leo Thomas Butler*, Queen's University
(9435815)

9:15 a.m.
Kaehler Structures On Four Dimensional Closed Hamiltonian $S^1$ Orbifolds With Isolated Fixed Points.
Janet C Talvacchia*, Swarthmore College
(9435386)

9:50 a.m.
Invariants for Legendrian Tangles.
Lisa M Traynor*, Bryn Mawr College
(9435855)

10:25 a.m.
Number Theory and Quantization of Toric Actions.
Ana M Cannas da Silva*, Instituto Superior Tecnico
(94351113)

Saturday April 24, 1999, 9:00 a.m.10:50 a.m.
Special Session on Smooth Categories in Geometry and Mechanics, I
Room 5, Diefendorf Hall Organizers: F. William Lawvere, SUNY at Buffalo wlawvere@acsu.buffalo.edu

9:00 a.m.
A Synthetic Approach to Characteristic Cohomology.
James J. Faran, V*, SUNY at Buffalo
(9431872)

9:30 a.m.
Infinitesimal Calculus of Variation.
Hirokazu Nishimura*, University of Tsukuba, Japan
(9431871)

10:00 a.m.
Lebesgue Toposes.
Jonathon Funk*, University of British Columbia
(9431865)

10:30 a.m.
Strongly Separable Morphisms.
George Janelidze*, Georgean Academy of Science
Walter Tholen, York University, Ont.Canada
(9431873)

Saturday April 24, 1999, 9:00 a.m.10:50 a.m.
Special Session on Thin Films: Solid and Liquid, I
Room 148, Diefendorf Hall Organizers: E. Bruce Pitman, SUNY at Buffalo pitman@math.buffalo.edu
Brian Spencer, State University of New York at Buffalo spencerb@math.buffalo.edu

9:00 a.m.
The Dynamics of a Spreading and Melting Drop on a Heated Substrate.
Daniel M Anderson*, University of North Carolina
M G Forest, University of North Carolina
D D Glick, University of North Carolina
R Superfine, University of North Carolina
(94376130)

9:40 a.m.
Undercompressive shocks in thin film flow.
Andrea L Bertozzi*, Duke University
Andreas M\"unch, Duke University
Michael Shearer, North Carolina State University
(9433528)

10:20 a.m.
Longwave instabilities in thin film equations  blowup, saturation, and steadystates.
Mary Pugh*, University of Pennsylvania
(9437683)

Saturday April 24, 1999, 9:00 a.m.10:50 a.m.
Special Session on Combinatorics and Graph Theory, I
Room 6, Diefendorf Hall Organizers: Harris Kwong, SUNY College at Fredonia kwong@cs.fredonia.edu

9:00 a.m.
Congruences of Stirling numbers and Bell numbers via Weyl algebra.
Ofer Hadas*, Wayne State University, Detroit
(9431159)

9:30 a.m.
Tautologies of Boolean Variables and Combinatoial Identities.
Melkamu Zeleke*, William Paterson University
(94305144)

10:30 a.m.
Covering a Bipartite Graph with Independent Quadrilaterals.
Xiangwen Li*, West Virginia University
Bin Wei, Institute of Systems, Acadmia Sinica, China
Fan Yang, Institute of Systems, Acadmia Sinica, China
(9430535)

Saturday April 24, 1999, 9:00 a.m.10:45 a.m.
Special Session on Mathematical Physics, I
Room 7, Diefendorf Hall Organizers: Jonathan Dimock, SUNY at Buffalo dimock@acsu.buffalo.edu

9:00 a.m.
Algebraic Structures on Generalized Gauge Symmetries.
Glenn Barnich, Universitat de Valencia
Ron Fulp, N. C. State University
Tom Lada*, N.C. State University
Jim Stasheff, UNCChapel Hill
(9431712)

9:30 a.m.
Regularization of YangMills Theory by Nonlinear Wavelet Expansion.
Paul G Federbush*, University of Michigan
(9438152)

10:00 a.m.
Geometry of Infinite Grassmannians and the Structure of the Proton.
Sarada G Rajeev*, University of Rochester
(9438180)

Saturday April 24, 1999, 9:00 a.m.10:50 a.m.
Special Session on Operads, Algebras, and Their Applications, I
Room 4, Diefendorf Hall Organizers: Alexander A. Voronov, Michigan State University voronov@math.mit.edu

9:00 a.m.
Constructions of $E_n$ Operads.
Zbigniew Fiedorowicz*, Ohio State University
(9435553)

9:40 a.m.
Cohomology of graded generalizations of Poisson algebras.
Gregg J. Zuckerman*, Yale University
(9431789)

10:20 a.m.
Fukaya's $A_{\infty}$ category and a CHAC operad.
Jack Morava*, The Johns Hopkins University
(94318147)

Saturday April 24, 1999, 9:00 a.m.10:25 a.m.
Session on Contributed Papers
Room 205, Diefendorf Hall

9:00 a.m.
Constrained Leja Points and Numerical Solution of the Constrained Energy Problem.
Dan Coroian, IndianaPurdue University
Peter Dragnev*, IndianaPurdue University
(9433191)

9:15 a.m.
Invariant Vector Fields on Flows of Certain Closed 3Manifolds and their Confoliations.
Richard H. Escobales, Jr.*, Canisius College
(9435363)

9:30 a.m.
An exact solution of $\pi(x)$ for any $X$.
Robert J. Mack*, none
(9431119)

9:45 a.m.
A siftertype characterization for the BanachMazur game.
Aaron R. Todd*, Bernard Baruch College
(94354112)

10:00 a.m.
The Friedman Projection to Facet Measure Three Obeys the Euler Formula.
C. S. Felicitas, CFCTE, Inc.
Freddie Friedman*, CFCTE, Inc.
(9435320)

10:15 a.m.
Braid structures in 3manifolds.
Sofia Lambropoulou*, Universitaet Goettingen
(94357169)

Saturday April 24, 1999, 11:00 a.m.11:50 a.m.
Invited Address
Symmetric Spectra.
Room 148, Diefendorf Hall
Jeffrey H. Smith*, Purdue University

Saturday April 24, 1999, 1:30 p.m.2:20 p.m.
Invited Address
Integrable systems and spaces of curves.
Room 148, Diefendorf Hall
Michele Audin*, Universit\'e Louis Pasteur
(94358173)

Saturday April 24, 1999, 2:30 p.m.5:20 p.m.
Special Session on Smooth Categories in Geometry and Mechanics, II
Room 5, Diefendorf Hall Organizers: F. William Lawvere, SUNY at Buffalo wlawvere@acsu.buffalo.edu

2:30 p.m.
Atoms and categories of differential equations in Synthetic Differential Geometry.
Gonzalo E Reyes*, Montreal University
Anders Kock, Aarhus University
(94318109)

3:00 p.m.
Transversal Stability for infinitesimally represented germs.
Felipe Gago*, University of Santiago de Compostela, Spain
(9431866)

3:30 p.m.
Infinitesimal Geometric Aspects of Riemannian Metrics.
Anders Kock*, Aarhus University, Denmark
(9431868)

4:00 p.m.
Break.

4:30 p.m.
Infinitesimal Deformations in SDG.
Rene Lavendhomme*, University of Louvain, Belgium
(9431870)

5:00 p.m.
Single universe for intensive and extensive quantities in a topos.
Marta C. Bunge*, McGill University
(9431876)

Saturday April 24, 1999, 2:30 p.m.4:20 p.m.
Special Session on Thin Films: Solid and Liquid, II
Room 148, Diefendorf Hall Organizers: E. Bruce Pitman, SUNY at Buffalo pitman@math.buffalo.edu
Brian Spencer, State University of New York at Buffalo spencerb@math.buffalo.edu

2:30 p.m.
Morphological Stability of Rods in the Presence of Surface Energy and Elastic Stress.
Dimitri J Kirill, Northwestern University
Harris Wong, Louisiana State University
Stephen H. Davis, Northwestern University
Michael J Miksis*, Northwestern University
Peter W Voorhees, Northwestern University
(9437340)

3:10 p.m.
A continuum model for the growth of thin solid films.
Tim P Schulze*, New York University
Weinan E, New York University
(9437399)

3:50 p.m.
Discussion.

Saturday April 24, 1999, 2:30 p.m.4:50 p.m.
Special Session on Mathematical Physics, II
Room 7, Diefendorf Hall Organizers: Jonathan Dimock, SUNY at Buffalo dimock@acsu.buffalo.edu

2:30 p.m.
Quantum field theory and the renormalization group.
David C. Brydges*, University of Virginia
Jon Dimock, SUNY at Buffalo
Tom R. Hurd, McMaster University
(94382143)

3:30 p.m.
Potts model duality on the annulus.
Christopher K. King*, Northeastern University
(9438261)

4:00 p.m.
Probabilistic Considerations on Interacting Particle Systems.
Patricia Giurgescu*, Pace University
(9436049)

4:30 p.m.
Stochastic dynamics for classical spin models.
Tadeusz Balaban*, Rutgers University
(94382146)

Saturday April 24, 1999, 2:30 p.m.5:20 p.m.
Special Session on Knot and 3Manifolds, II
Room 2, Diefendorf Hall Organizers: Thang T.Q. Le, State University of New York at Buffalo letu@math.buffalo.edu
William W. Menasco, SUNY at Buffalo menasco@tait.math.buffalo.edu
Morwen B. Thistlethwaite, University of Tennessee morwen@math.utk.edu

2:30 p.m.
Improper group actions and duality.
John Meier*, Lafayette College
Kenneth S. Brown, Cornell University
(94320131)

3:00 p.m.
A contribution of U(1)reducible connections to the colored Jones polynomial and padic properties of quantum invariants.
Lev Rozansky*, Yale University
(94357122)

3:30 p.m.
$n$string Tangles.
John W Emert*, Ball State University
Claus Ernst, Western Kentucky University
(9435716)

4:00 p.m.
qhomotopy skein module of 3manifolds; properties and applications.
Jozef H Przytycki*, GWU
(94357148)

4:30 p.m.
Brunnian braids and links, ntriviality, and group commutators.
Theodore B Stanford*, United States Naval Academy
(94357129)

Saturday April 24, 1999, 2:30 p.m.5:20 p.m.
Special Session on Knot and 3Manifolds, III
Room 4, Diefendorf Hall Organizers: Thang T.Q. Le, State University of New York at Buffalo letu@math.buffalo.edu
William W. Menasco, SUNY at Buffalo menasco@tait.math.buffalo.edu
Morwen B. Thistlethwaite, University of Tennessee morwen@math.utk.edu

2:30 p.m.
Kauffman Bracket Skein Module at 4th Root of Unity.
Adam S Sikora*, UMCP and SUNY Buffalo
(94357167)

3:00 p.m.
The subgroup separable property in the braid groups.
Oliver T Dasbach, HeinrichHeineUniversitat
Brian S Mangum*, Barnard College, Columbia University
(94357158)

3:30 p.m.
Group actions on order trees.
Rachel Roberts, Washington University at St Louis
Melanie Stein*, Trinity College
(9435787)

4:00 p.m.
Results on Thin Position.
Curtis Feist*, Marshall University
(9435798)

4:30 p.m.
Extension of incompressible surfaces on the boundaries of 3manifolds .
Michael Freedman, UCSD, Microsoft
Hugh N Howards*, Wake Forest University
Wu YingQing, University of Iowa
(94357134)

5:00 p.m.
Combinatorial Decomposition of Chinese Characters.
Michael E. McDaniel*, Aquinas College
(9435760)

Saturday April 24, 1999, 2:30 p.m.5:20 p.m.
Special Session on Representations of Lie Algebras, II
Room 8, Diefendorf Hall Organizers: Duncan J. Melville, Saint Lawrence University dmel@music.stlawu.edu

2:30 p.m.
Representations of reduced enveloping algebras arising from the subregular nilpotent orbit.
James E Humphreys*, University of Massachusetts, Amherst
(9431750)

3:00 p.m.
On idempotents in enveloping algebras.
George B. Seligman*, Yale University
(9431733)

3:30 p.m.
Schemes of Tori and the Structure of Tame Restricted Lie Algebras.
Rolf Farnsteiner*, University of Wisconsin
(9431745)

4:00 p.m.
Nonrestricted representations of Cartantype Lie algebras.
Randall R. Holmes*, Auburn University
(94317101)

4:30 p.m.
Blocks of Finite Type in Reduced Enveloping Algebras for Classical Lie Algebras.
Daniel K. Nakano, Utah State University
David Pollack*, Queen's University
(94317114)

5:00 p.m.
Complexity for modules over classical Lie algebras and finite Chevalley groups.
Zongzhu Lin, Kansas St. University
Daniel K. Nakano*, Utah St. University
(9431736)

Saturday April 24, 1999, 2:30 p.m.4:20 p.m.
Special Session on Operads, Algebras, and Their Applications, II
Room 308, Diefendorf Hall Organizers: Alexander A. Voronov, Michigan State University voronov@math.mit.edu

2:30 p.m.
Some problems in deformation theory and quantum groups.
Murray Gerstenhaber*, University of Pennsylvnia
(94316137)

3:10 p.m.
On Some Duality Theorems.
Sorin Dascalescu, University of Bucharest
Florin F. Nichita*, SUNY at Buffalo, Institute of Mathematics of the Romanian Academy
Samuel D. Schack, SUNY at Buffalo
(9431627)

3:50 p.m.
Integrable Hierarchies, Stable Maps, and Spin Curves.
Tyler J Jarvis, Brigham Young University
Takashi Kimura*, Boston University
(94314159)

Saturday April 24, 1999, 2:30 p.m.5:15 p.m.
Special Session on Integrable Systems, II
Room 104, Diefendorf Hall Organizers: Mich\'ele Audin, Universit\'e Louis Pasteur et NCRS maudin@math.ustrasbg.fr
Lisa Claire Jeffrey, University of Toronto jeffrey@math.toronto.edu

2:30 p.m.
StiefelWhitney classes and eigenvalue inequalities.
Arkady Berenstein, Cornell University
Reyer Sjamaar*, Cornell University
(94358115)

3:05 p.m.
Vanishing theorems for the kernel of a Dirac operator.
Maxim Braverman*, Ohio State University
(94332126)

3:40 p.m.
Moduli of bundles with weighted frames.
Jacques Hurtubise*, McGill University
Lisa C. Jeffrey, University of Toronto
(9431475)

4:15 p.m.
Holomorphic bundles over complex surfaces.
Boris Khesin*, University of Toronto
Alexei Rosly, ITEP, Moscow
(94358135)

4:50 p.m.
Automorphism group actions on moduli spaces.
William M. Goldman*, University of Maryland
(9435331)

Saturday April 24, 1999, 3:00 p.m.5:20 p.m.
Special Session on Combinatorics and Graph Theory, II
Room 6, Diefendorf Hall Organizers: Harris Kwong, SUNY College at Fredonia kwong@cs.fredonia.edu

3:30 p.m.
Circulants and the Circular Chromatic Number.
Karen L Collins*, Wesleyan University
(9430546)

4:00 p.m.
Graph Coloring and Noncommutative Symmetric Functions.
Bruce E Sagan*, Michigan State University
David D. Gebhard, LenoirRhyne College
(9430521)

4:30 p.m.
Group Coloring of a Graph.
HongJian Lai*, West Virginia University
(9430596)

5:00 p.m.
Dynamic Vertex Coloring.
Bruce Montgomery*, West Virginia University
(9430590)

Saturday April 24, 1999, 3:00 p.m.4:40 p.m.
Special Session on Complex Geometry, II
Room 103, Diefendorf Hall Organizers: Terrence Napier, Lehigh University tjn2@lehigh.edu
Mohan Ramachandran, State University of New York at Buffalo ramacm@newton.math.buffalo.edu

3:00 p.m.
Uniqueness of Grauert tubes.
Richard K Hind*, University of Michigan
(94351128)

4:00 p.m.
Singular Leviflat real analytic hypersurfaces.
Daniel M. Burns, Jr.*, Univ. of Michigan
Xianghong Gong, Univ. of Michigan
(94332165)

Saturday April 24, 1999, 5:30 p.m.6:20 p.m.
Invited Address
Atomistic, continuum and bulk models for epitaxial growth.
Room 148, Diefendorf Hall
Russel E Caflisch*, UCLA
(9438241)

Saturday April 24, 1999, 7:00 p.m.9:00 p.m.
UB Department of Mathematics Dinner Reception
Sunday April 25, 1999

Sunday April 25, 1999, 8:00 a.m.12:00 p.m.
Exhibit and Book Sale
Rotunda, Diefendorf Hall

Sunday April 25, 1999, 8:00 a.m.12:00 p.m.
Meeting Registration
Room 114, Diefendorf Hall

Sunday April 25, 1999, 8:00 a.m.10:50 a.m.
Special Session on Knot and 3Manifolds, IV
Room 2, Diefendorf Hall Organizers: Thang T.Q. Le, State University of New York at Buffalo letu@math.buffalo.edu
William W. Menasco, SUNY at Buffalo menasco@tait.math.buffalo.edu
Morwen B. Thistlethwaite, University of Tennessee morwen@math.utk.edu

8:00 a.m.
Knots in nonHaken 3Manifolds.
Marc Culler*, AMS
(94357171)

8:30 a.m.
YangMills measure in the Kauffman bracket skein module.
Doug Bullock, Boise State University
Charles Frohman, University of Iowa
Joanna KaniaBartoszynska*, Boise State University
(94357121)

9:00 a.m.
The Apolynomial from the Noncommutative Viewpoint.
Charles D Frohman*, The University of Iowa
Razvan Gelca, The University of Michigan
Walter LoFaro, Boise State University
(9435754)

9:30 a.m.
Contact Structures On 3Manifolds That Fiber Over $S^1$.
Andrew P Lewis*, UC Berkeley
(94357139)

10:00 a.m.
Constructing tight contact 3manifolds.
John B. Etnyre, Stanford
Robert W. Ghrist*, Geogia Institute of Technology
(9435829)

10:30 a.m.
A dynamics proof that Alexander polynomials multiply under connected sums .
Michael C Sullivan*, Southern Illinois University
(9435809)

Sunday April 25, 1999, 8:00 a.m.10:50 a.m.
Special Session on Representations of Lie Algebras, III
Room 8, Diefendorf Hall Organizers: Duncan J. Melville, Saint Lawrence University dmel@music.stlawu.edu

8:00 a.m.
A Homological Invariant of Weyl modules for $GL_n$.
Upendra B Kulkarni*, University of Massachusetts
(9432085)

8:30 a.m.
Gr\"obnerShirshov Pair in Representation Theory.
SeokJin Kang, Seoul National University, Korea
KyuHwan Lee*, Seoul National University, Korea
(9431726)

9:00 a.m.
Combinatorics of Crystals for Demazure modules.
Kailash C. Misra*, North Carolina State University
(94317133)

9:30 a.m.
Symmetric functions and $U_q(\widehat{sl}_2)$.
Naihuan Jing*, MSRI and N. C. State Univ.
(94317132)

10:00 a.m.
Fusion Rules From Elementary Group Theory.
Alex J. Feingold*, Binghamton University
(94317156)

10:30 a.m.
Realization of affine algebras.
Albert John Coleman*, Queen's University
(9431758)

Sunday April 25, 1999, 8:00 a.m.10:40 a.m.
Special Session on Complex Geometry, III
Room 103, Diefendorf Hall Organizers: Terrence Napier, Lehigh University tjn2@lehigh.edu
Mohan Ramachandran, State University of New York at Buffalo ramacm@newton.math.buffalo.edu

8:00 a.m.
On the fundamental group of an elliptic fibration.
Stephen S.Y. Lu*, Pure Math. Dept., University of Waterloo.
(9433244)

9:00 a.m.
HermitianEinstein Metrics for Vector Bundles on Complete Kahler Manifolds.
Lei Ni*, Purdue University
(94358104)

10:00 a.m.
Extended bisectors in complex projective space.
William M. Goldman*, University of Maryland
(9435330)

Sunday April 25, 1999, 8:30 a.m.10:50 a.m.
Special Session on Combinatorics and Graph Theory, III
Room 6, Diefendorf Hall Organizers: Harris Kwong, SUNY College at Fredonia kwong@cs.fredonia.edu

8:30 a.m.
Vertex reinforced random walks on arbitrary graphs.
Stanislav Volkov*, University of Toronto
(94305174)

9:00 a.m.
Condensation Method.
Tewodros Amdeberhan*, DeVry Institute of Technology
(94305166)

9:30 a.m.
Probabilistic Group Testing in the Presence of Errors and its Applications to DNA Library Screening.
Arkadii G D'yachkov, SUNY Geneseo/Moscow State Univ.
Anthony J Macula*, SUNY Geneseo
Vyacheslav V Rykov, SUNY Geneseo/ Moscow State Univ.
(9430510)

10:30 a.m.
Cospectral Graphs with Arbitrary Centers.
Ian C. Walter, Jr.*, D'Youville College
(9430511)

Sunday April 25, 1999, 8:40 a.m.10:50 a.m.
Special Session on Integrable Systems, III
Room 104, Diefendorf Hall Organizers: Mich\'ele Audin, Universit\'e Louis Pasteur et NCRS maudin@math.ustrasbg.fr
Lisa Claire Jeffrey, University of Toronto jeffrey@math.toronto.edu

8:40 a.m.
Contact forms on Frobenius manifolds.
Mich\`ele Audin, Universit\'e Louis Pasteur et CNRS
Emma Previato*, Boston University
(94358118)

9:15 a.m.
Localization in equivariant cohomology for invariant submanifolds.
Mikhail Kogan*, MIT
(94353123)

9:50 a.m.
Localization theorems for manifolds with boundary and geometric quantization.
David S Metzler*, Rice University
(94353116)

10:25 a.m.
Cohomology Ring of Weight Varieties.
Rebecca F Goldin*, Massachusetts Insitute of Technology
(94351155)

Sunday April 25, 1999, 9:00 a.m.10:50 a.m.
Special Session on Smooth Categories in Geometry and Mechanics, III
Room 5, Diefendorf Hall Organizers: F. William Lawvere, SUNY at Buffalo wlawvere@acsu.buffalo.edu

9:00 a.m.
Arithmetic Categories.
Peter Freyd*, University of Pennsylvania
(9431869)

9:30 a.m.
Vertex Algebras  An example of a relaxed multilinear category.
Craig T. Snydal*, Cambridge University
(9431867)

10:00 a.m.
Conceptual Mathematics, Categories, Functors, and Tensors.
Walter Noll*, Carnegie Mellon University
(94318176)

10:30 a.m.
Smoothness of Cubical Splines.
F. William Lawvere*, SUNY at Buffalo
(94318145)

Sunday April 25, 1999, 9:00 a.m.10:45 a.m.
Special Session on Mathematical Physics, III
Room 7, Diefendorf Hall Organizers: Jonathan Dimock, SUNY at Buffalo dimock@acsu.buffalo.edu

9:00 a.m.
Heat kernel analysis on infinite dimensional complex groups.
Maria Gordina*, McMaster University
(94346136)

9:30 a.m.
Boundary conformal fiel theory on the upper half plane.
J\"urg Fr\"ohlich, ETHZ Z\"urich
Olivier Grandjean*, Harvard University
Andreas Recknagel, MPI Leipzig
Volker Schomerus, Hamburg University
(94381111)

10:00 a.m.
Supersymmetry with a Twist.
Arthur M. Jaffe*, Harvard University
(9438162)

Sunday April 25, 1999, 9:00 a.m.10:50 a.m.
Special Session on Operads, Algebras, and Their Applications, III
Room 4, Diefendorf Hall Organizers: Alexander A. Voronov, Michigan State University voronov@math.mit.edu

9:00 a.m.
Homology of $A_{\infty}$ and $L_{\infty}$algebras.
Masoud Khalkhali*, University of Western Ontario
(94318142)

9:40 a.m.
Formality conjectures for chains and characteristic classes.
Boris L Tsygan*, Penn State University
(94318170)

10:20 a.m.
A master identity for homotopy Gerstenhaber algebras.
Fusun Akman*, Coastal Carolina University
(94317100)

Sunday April 25, 1999, 11:00 a.m.11:50 a.m.
Invited Address
Operad Theory and Some Applications.
Room 148, Diefendorf Hall
Alexander A. Voronov*, Michigan State University
(9431805)

Sunday April 25, 1999, 1:30 p.m.2:20 p.m.
Invited Address
Harmonic Algebra.
Room 148, Diefendorf Hall
Gregg J. Zuckerman*, Yale University
(94317175)

Sunday April 25, 1999, 2:30 p.m.4:00 p.m.
Special Session on Smooth Categories in Geometry and Mechanics, IV
Room 5, Diefendorf Hall Organizers: F. William Lawvere, SUNY at Buffalo wlawvere@acsu.buffalo.edu

2:30 p.m.
Round Table Discussion.

Sunday April 25, 1999, 2:30 p.m.4:50 p.m.
Special Session on Mathematical Physics, IV
Room 7, Diefendorf Hall Organizers: Jonathan Dimock, SUNY at Buffalo dimock@acsu.buffalo.edu

2:30 p.m.
Quantization of Massive Vector Fields in Curved Spacetime.
Edward P Furlani*, Department of Physics, SUNY at Buffalo
(9438117)

3:00 p.m.
The Faddeev formula in the inverse scattering for Dirac operators.
Ghias Hachem*, Institut Galilée,Université Paris 13,France.
(9434723)

3:30 p.m.
Dynamic Stability of Magnetic Vortices.
Stephen J Gustafson*, University of Toronto
(94335105)

4:00 p.m.
Properties of the Laplacian on a Sierpinski Gasket.
Alexander Teplyaev*, McMaster University
(94335157)

4:30 p.m.
On separability of the Toda lattice.
Raymond G. McLenaghan, University of Waterloo
Roman G. Smirnov*, University of Waterloo
(94358149)

Sunday April 25, 1999, 2:30 p.m.5:20 p.m.
Special Session on Knot and 3Manifolds, V
Room 2, Diefendorf Hall Organizers: Thang T.Q. Le, State University of New York at Buffalo letu@math.buffalo.edu
William W. Menasco, SUNY at Buffalo menasco@tait.math.buffalo.edu
Morwen B. Thistlethwaite, University of Tennessee morwen@math.utk.edu

2:30 p.m.
The CassonWalkerLescop Invariant and Link Invariants.
Jeff Johannes*, University of Nevada Las Vegas
(9435718)

3:00 p.m.
The CassonWalker invariant for double covers of rational homology 3spheres.
Cynthia L. Curtis*, The College of New Jersey
(9435737)

3:30 p.m.
Comparison among finite type 3manifold invariants.
Stavros Garoufalidis*, Harvard University
Michael Polyak, Tel Aviv University
Mikhal Goussarov, POMI, St. Petersburg, Russia
(9435788)

4:00 p.m.
Finitetype invariants, Massey products and the Johnson homomorphism.
Jerome P Levine*, Brandeis University
Stavros Garoufalidis, Harvard University
(94357103)

4:30 p.m.
Norm duality and hyperbolic 3manifolds.
Steven P Boyer*, Universite du Quebec a Montreal
Xingru Zhang, SUNY Buffalo
(94357119)

5:00 p.m.
On Simple Points Of Character Varieties Of 3Manifolds.
Steven Boyer, UQAM
Xingru Zhang*, SUNY at Buffalo
(9435738)

Sunday April 25, 1999, 2:30 p.m.5:50 p.m.
Special Session on Representations of Lie Algebras, IV
Room 8, Diefendorf Hall Organizers: Duncan J. Melville, Saint Lawrence University dmel@music.stlawu.edu

2:30 p.m.
Peterson's formula for generalized KacMoody superalgebras.
SeokJin Kang*, Seoul National University, Korea
JaeHoon Kwon, Seoul National University, Korea
YoungTak Oh, Seoul National University, Korea
(94317138)

3:00 p.m.
Irreducible Representations for toroidal Lie algebras.
Stephen Berman*, Univ. of Sask.
Yuly Billig, Univ. of New Brunswick
(9431734)

3:30 p.m.
Stratification of algebras.
Vlastimil Dlab*, Carleton University
(94316140)

4:00 p.m.
Affine braids, quantum groups and Jantzen filtrations.
Rosa Orellana, University of California, San Diego
Arun Ram*, Princeton University
(94316110)

4:30 p.m.
Representation theory of reductive normal algebraic monoids.
Stephen R Doty*, Loyola University Chicago
(94320102)

5:00 p.m.
Representations of KacMoody algebras and the sineGordon equation.
Yuly Billig*, University of New Brunswick
(9431747)

5:30 p.m.
a realization of the infinite wedge space representation of $\mathfrak{gl}_{\infty}$.
R. Michael Howe*, University of WisconsinEau Claire
(94317106)

Sunday April 25, 1999, 2:30 p.m.4:20 p.m.
Special Session on Operads, Algebras, and Their Applications, IV
Room 4, Diefendorf Hall Organizers: Alexander A. Voronov, Michigan State University voronov@math.mit.edu

2:30 p.m.
A Tale of Two Quantizations.
Jim Stasheff*, UNCCH
(9438195)

3:10 p.m.
Semiinfinite forms and topological vertex operator algebras.
YiZhi Huang*, Rutgers University
Wenhua Zhao, University of Chicago
(9431764)

3:50 p.m.
The Operads of locally trivialized holomorphic $G$bundles over Riemann sphere.
Wenhua Zhao*, University of Chicago
(94381107)

Sunday April 25, 1999, 2:30 p.m.4:40 p.m.
Special Session on Integrable Systems, IV
Room 104, Diefendorf Hall Organizers: Mich\'ele Audin, Universit\'e Louis Pasteur et NCRS maudin@math.ustrasbg.fr
Lisa Claire Jeffrey, University of Toronto jeffrey@math.toronto.edu

2:30 p.m.
Convex polytopes and moment maps in the geometry of an integrable system.
Barbara A. Shipman*, The University of Texas at Arlington
(9437051)

3:05 p.m.
Extended integrability and biHamiltonian systems .
Oleg I. Bogoyavlenskij*, Queen's University
(94358151)

3:40 p.m.
Representations of Fundamental Groups of Riemann Surfaces.
Mark Hoyle*, Michigan State University
(94358152)

4:15 p.m.
Moduli spaces of flat connections on Riemann surfaces.
Lisa C Jeffrey*, University of Toronto
(94358141)

Sunday April 25, 1999, 3:00 p.m.4:50 p.m.
Special Session on Combinatorics and Graph Theory, IV
Room 6, Diefendorf Hall Organizers: Harris Kwong, SUNY College at Fredonia kwong@cs.fredonia.edu

3:00 p.m.
Aspects of Representability of Bias Matroids of Signed Graphs.
Steven R. Pagano*, University of Kentucky
(9430574)

3:30 p.m.
Symplectic matroids the easy way.
Timothy Y Chow*, Tellabs Research Center
(9430525)

4:00 p.m.
Superimposed Codes based on ReedSolomon Codes.
Arkadii G D'yachkov, SUNY Geneseo/Moscow State Univ.
Anthony J Macula*, SUNY Geneseo
Vyacheslav V Rykov, SUNY Geneseo/Moscow State Univ.
(9430514)

4:30 p.m.
New Applications and Results of Superimposed Code Theory.
Arkadii G D'yachkov*, SUNY Geneseo/Moscow State Univ.
Anthony J Macula, SUNY Geneseo
Vyacheslav V Rykov, SUNY Geneseo/Moscow State Univ.
(9430513)

Sunday April 25, 1999, 3:00 p.m.3:40 p.m.
Special Session on Complex Geometry, IV
Room 103, Diefendorf Hall Organizers: Terrence Napier, Lehigh University tjn2@lehigh.edu
Mohan Ramachandran, State University of New York at Buffalo ramacm@newton.math.buffalo.edu

3:00 p.m.
A Generalized Boundary Schwarz's Lemma.
Dov N. Chelst*, Drew University
(94330161)
Inquiries: meet@ams.org

