AMS Sectional Meeting Full Program
Current as of Tuesday, April 12, 2005 15:08:58
1992 Fall Western Section Meeting
Los Angeles, CA, November 78, 1992
Meeting #877
Associate secretaries: Lance W Small, AMS lwsmall@ucsd.edu
Saturday November 7, 1992

Saturday November 7, 1992, 8:30 a.m.10:50 a.m.
Special Session on Finite and Algebraic Groups, I
Room 144, Kaprielian Hall

8:30 a.m.
The 1cohomology of simple modules for the group of type F_4 in characteristic 2.
Peter Sin*, University of Florida
(8772005) 
9:00 a.m.
Minimal character degrees.
Geoffrey Robinson*, University of Florida
(87720102) 
9:30 a.m.
A generalization of the conjugation character of a finite group.
Shahriar Shahriari*, Pomona College
(87720101) 
10:00 a.m.
2modular embeddings of monster geometries.
Stephen D. Smith*, University of Illinois, UrbanaChampaign
(8772004) 
10:30 a.m.
Group actions on finite collapsible simplicial complexes.
Yoav Segev*, California Institute of Technology
(87720103)

8:30 a.m.

Saturday November 7, 1992, 8:30 a.m.10:50 a.m.
Special Session on Dynamical Systems, I
Room 147, Kaprielian Hall

8:30 a.m.
Weak turbulence.
Bj\"orn Birnir*, University of California, Santa Barbara
(8773580) 
9:00 a.m.
Structure of partially permutative cellular automata.
Kari Eloranta*, Helsinki University of Technology, Finland
(8778229) 
9:30 a.m.
Interval exchanges and a group of paths in R^2.
Richard Kenyon*, Institute Fourier de Mathematics, Universite de Grenobele, France
(8775143) 
10:00 a.m.
A class of algebraic subshifts.
Wolfgang Krieger*, University of Heidelberg, Germany
(8775853) 
10:30 a.m.
Hausdorff and box dimensions of selfaffine sets.
Steven P. Lalley*, Purdue University, West Lafayette
Dimitrios Gatzouras, Yale University
(8772855)

8:30 a.m.

Saturday November 7, 1992, 8:30 a.m.10:50 a.m.
Special Session on Gauge Theory and Four Manifolds, I
Room 146, Kaprielian Hall

8:30 a.m.
Floer homology for manifolds with boundary.
David M. Austin*, University of British Columbia
Peter J. Braam, University of Oxford, England
(87757112) 
9:00 a.m.
Discussion 
9:00 a.m.
Floer homotopy theory.
Ralph L. Cohen*, Stanford University
(87757104) 
9:30 a.m.
Topology of the Gauge group.
Selman Akbulut*, Michigan State University
(87757115) 
10:30 a.m.
Using Floer's exact triangle to compute Donaldson invariants.
Ronald Fintushel, Michigan State University
Ronald J. Stern*, University of California, Irvine
(87757113)

8:30 a.m.

Saturday November 7, 1992, 8:30 a.m.10:20 a.m.
Special Session on Topics in Geometry and Physics, I
Room 101, Seeley G. Mudd Building

8:30 a.m.
Noncompact symmetries in supergravity and string theories.
John H. Schwarz*, California Institute of Technology
(8778216) 
9:10 a.m.
Picard groups of supertori.
Jeff Rabin*, University of California at San Diego, La Jolla
(8775114) 
9:50 a.m.
Semiinfinite cohomology in twodimensional quantum field theory.
Krzysztof Pilch*, University of Southern California
(8778121)

8:30 a.m.

Saturday November 7, 1992, 8:30 a.m.10:50 a.m.
Special Session on Nonlinear Hyperbolic PDE and Fluid Mechanics, I
Room 145, Kaprielian Hall

8:30 a.m.
Nonexistence of breathers.
Bj\"orn Birnir*, University of California, Santa Barbara
(8773560) 
9:00 a.m.
Singularity formation for complex solutions of the 3D Euler equations.
Russel E. Caflisch*, University of California, Los Angeles
(8773561) 
9:30 a.m.
Nonlinear waves in bubbly fluids.
John K. Hunter*, University of California, Davis
Kan Tan, University of California, Davis
(8773574) 
10:00 a.m.
A kinetic theory for bubbly flow.
Peter Smereka*, University of California, Los Angeles
Giovanni Russo, University Degli Studi Dell'Aquila, Italy
(8773573) 
10:30 a.m.
Entropic convergence and the linearized limit for the Boltzmann equation.
C. David Levermore*, University of Arizona
(8773572)

8:30 a.m.

Saturday November 7, 1992, 8:30 a.m.10:40 a.m.
Session on Contributed Papers, I
Room 167, Kaprielian Hall

8:30 a.m.
Chebyshev spectra: Are these base states of the universe?
Michael Dombroski*, Los Angeles City College
(8771258) 
8:50 a.m.
Primitive linear series on curves.
Marc Coppens, Geel, Belgium
Changho Keem*, Seoul National University, Korea
Garriet Martens, Institut der Universitaet ErlangenNuernberg, Germany
(8771435) 
9:10 a.m.
Subclasses of univalent functions and the LittlewoodPaley conjecture.
M. Jahangiri*, California State University, Bakersfield
(8773052) 
9:30 a.m.
Exact subelliptic estimate for n1 forms.
LopHing Ho*, Wichita State University
(8773247) 
9:50 a.m.
Geometric properties, minimax inequalities, and fixed point theorems on convex spaces.
Sehie Park*, Seoul National University, Korea
J. S. Bae, MyongJi University, Korea
H. K. Kang, MyongJi University, Korea
(8774739) 
10:10 a.m.
Euclidean theorems from Laguerre geometry.
Jay P. Fillmore*, University of California at San Diego, La Jolla
Arthur Springer, San Diego State University
(8775156) 
10:30 a.m.
Vector bundles over curves, generalized KP systems and Prym varieties.
Yingchen Li*, University of California, Davis
Motohico Mulase, University of California, Davis
(8771451)

8:30 a.m.

Saturday November 7, 1992, 9:00 a.m.10:50 a.m.
Special Session on Hyperbolic Geometry, I
Room 163, Kaprielian Hall

9:00 a.m.
Canonical decompositions of cusped hyperbolic manifolds.
Makoto Sakuma, Osaka University, Japan
Jeff Weeks*, Geometry Center, Minneapolis, Minnesota
(8775731) 
9:30 a.m.
Some applications of the hyperbolic volume formula of Lobachevsky and Milnor.
Igor Rivin*, Princeton University
(8775749) 
10:00 a.m.
Surface bundle covers of hyperbolic 3manifolds.
Alan Reid*, Mathematical Sciences Research Institute, Berkeley
(8775707) 
10:30 a.m.
The volume of a hyperbolic 3manifold of Betti number 2.
Marc Culler*, University of Illinois, Chicago
Peter B. Shalen, University of Illinois, Chicago
(8775793)

9:00 a.m.

Saturday November 7, 1992, 11:00 a.m.11:50 a.m.
Invited Address 
Saturday November 7, 1992, 2:00 p.m.2:50 p.m.
Invited Address
The life span of 3D compressible and incompressible flow.
Room 123, Seeley G. Mudd Building
Thomas C. Sideris*, University of California, Santa Barbara
(8773575) 
Saturday November 7, 1992, 3:00 p.m.6:20 p.m.
Special Session on Finite and Algebraic Groups, II
Room 144, Kaprielian Hall

3:00 p.m.
Subgroups of exceptional algebraic groups.
Martin Liebeck, Imperial College, England
Gary M. Seitz*, University of Oregon
(8772041) 
3:30 p.m.
Overgroups of irreducible linear groups.
Benjamin J. Ford*, University of Oregon
(8772085) 
4:00 p.m.
Nagata's example.
Robert Steinberg*, University of California, Los Angeles
(8772032) 
4:30 p.m.
Representations of quantum groups at a root of unity and of semisimple groups in prime characteristic: Independence of p.
Henning Haahr Andersen, Aarhus University, Denmark
Jens C. Jantzen*, University of Oregon
Wolfgang Soergel, MaxPlank Institute for Mathematics, Germany
(8772084) 
5:00 p.m.
Double cosets and clefs.
Ross Lawther*, California Institute of Technology
(87720116) 
5:30 p.m.
On the irreducibility of symmetric squares.
Kay Magaard*, Wayne State University
Donna Testerman, Wesleyan University
(8772008) 
6:00 p.m.
Large rank subgroups of finite and algebraic simple groups.
M. Liebeck, Imperial College, England
J. Saxl, Cambridge University, England
D. Testerman*, Wesleyan University
(8772042)

3:00 p.m.

Saturday November 7, 1992, 3:00 p.m.5:20 p.m.
Special Session on Spectral Geometry, I
Room 140, Kaprielian Hall

3:00 p.m.
Estimates for conformally invariant equations.
SunYung Alice Chang, University of California, Los Angeles
Paul Yang*, University of Southern California
(87753105) 
3:30 p.m.
The nuainvariant of Seifertfibred geometric 3manifolds.
Mingqing Ouyang*, Ohio State University, Columbus
(8775828) 
4:00 p.m.
The convex core and the Laplacian for hyperbolic 3manifolds.
Richard D. Canary*, University of Michigan, Ann Arbor
(8775887) 
4:30 p.m.
Eta invariants for manifolds with boundary.
Xianzhe Dai*, University of California, Los Angeles
(8775888) 
5:00 p.m.
Convergence of geometric terms in the Selberg trace formula on degenerating surfaces of finite volume.
Rolf Lundelius*, University of Kentucky
(87735107)

3:00 p.m.

Saturday November 7, 1992, 3:00 p.m.4:50 p.m.
Special Session on Hyperbolic Geometry, II
Room 163, Kaprielian Hall

3:00 p.m.
Singular hyperbolic structures and hyperbolic Dehn surgery.
Craig Hodgson*, University of Melbourne, Australia
(8775391) 
3:30 p.m.
Could we live in a small universe?
Geoff Hayward*, University of British Columbia
(87757117) 
4:00 p.m.
Hyperbolic metrics with concave boundary.
J. Hass*, University of California, Davis
(87757119) 
4:30 p.m.
Cocontractible Kleinian groups.
Daryl Cooper*, University of California, Santa Barbara
Darren Long, University of California, Santa Barbara
(8775359)

3:00 p.m.

Saturday November 7, 1992, 3:00 p.m.5:20 p.m.
Special Session on Algebraic and Complex Geometry, I
Room 158, Kaprielian Hall

3:00 p.m.
Inequality of BogomolovGieseker's type on arithmetic surfaces.
Atsushi Moriwaki*, University of California, Los Angeles
(8771425) 
3:30 p.m.
Gaussian maps on general algebraic curves.
Roberto Paoletti*, University of California, Los Angeles
(8771424) 
4:00 p.m.
Linear series on threefolds I.
Robert Lazarsfeld*, University of California, Los Angeles
(8771426) 
4:30 p.m.
Global generation of lineaar systems on 3fold II.
Lawrence Ein*, University of Illinois, Chicago
(8771427) 
5:00 p.m.
Algebrogeometric construction of certain nonlinear differential equations.
Larry Green*, University of California, Los Angeles
(8771499)

3:00 p.m.

Saturday November 7, 1992, 3:00 p.m.6:00 p.m.
Special Session on Gauge Theory and Four Manifolds, II
Room 146, Kaprielian Hall

3:00 p.m.
Discussion 
3:00 p.m.
ChernSimons invariants for manifolds with toral boundary.
Paul Kirk*, Indiana University, Bloomington
(87757108) 
3:30 p.m.
Computing spectral flow via cup products.
Eric P. Klassen*, Florida State University
Paul A. Kirk, Indiana University, Bloomington
(87757109) 
4:30 p.m.
SU(3) Casson invariants for Brieskorn spheres.
Hans U. Boden*, University of Michigan, Ann Arbor
(87757110) 
5:00 p.m.
Perturbation of equivariant moduli spaces.
Ronnie Lee*, Yale University
Ian Hambleton, McMaster University
(8775796) 
5:30 p.m.
Unitary nilpotent groups and unstable pseudoisotopies.
Slawomir Kwasik, Tulane University
Reinhard Schultz*, Purdue University, West Lafayette
(8775783)

3:00 p.m.

Saturday November 7, 1992, 3:00 p.m.5:50 p.m.
Special Session on Nonlinear Hyperbolic PDE and Fluid Mechanics, II
Room 145, Kaprielian Hall

3:00 p.m.
A counterexample to local existence in weak spaces for nonlinear wave equations.
Hans Lindblad*, Princeton University
(8773571) 
3:30 p.m.
Upper bounds for the life span of solutions to systems of nonlinear wave equations in two and three space dimensions.
Mohammad A. Rammaha*, University of Nebraska, Lincoln
(8773570) 
4:00 p.m.
Lower bounds of rates of decay for solutions to the NavierStokes equations.
Maria E. Schonbek*, University of California, Santa Cruz
(8773569) 
4:30 p.m.
Global existence and regularity for 3D convection in porous media.
Edriss S. Titi*, University of California, Irvine
(8773568) 
5:00 p.m.
Normal forms for water waves.
Walter Craig*, Brown University
(8773562) 
5:30 p.m.
New dispersive shallow water equations applicable to ocean dynamics.
Darryl D. Holm*, Los Alamos National Laboratory
(87735121)

3:00 p.m.

Saturday November 7, 1992, 3:00 p.m.5:40 p.m.
Session on Contributed Papers, II
Room 167, Kaprielian Hall

3:00 p.m.
Diverging eigenvalues and collapsing manifolds.
Youyu Xu*, University of California, Los Angeles
(8775348) 
3:20 p.m.
The Poincare conjecture holds in (the dunce hat) x I.
David S. Gillman*, University of California, Los Angeles
(8775757) 
3:40 p.m.
On the KneserHaken finiteness theorem. A Sharpness result.
William R. Sherman*, University of California, Los Angeles
(8775798) 
4:00 p.m.
The analytic proof of higher reciprocity laws.
Michael Berg*, Loyola Marymount University
(8771150) 
4:20 p.m.
Asynchronous embryonic cellgrowth and the theory of lists.
Dov Tamari*, New York, New York
(8779211) 
4:40 p.m.
Television broadcasting: The ultimate culprit in the decline of mathematics education?
G. Arthur Mihram*, Princeton, New Jersey
Danielle Mihram, University of California, Los Angeles
(8779895) 
5:00 p.m.
Degeneration of moduli of stable bundles over algebraic curves.
Huashi Xia*, University of California, Los Angeles
(87714100) 
5:20 p.m.
On the spectral geometry of 2spheres.
Shaoping Chang*, Stanford University
(8775838)

3:00 p.m.

Saturday November 7, 1992, 3:30 p.m.4:40 p.m.
Special Session on Topics in Geometry and Physics, II
Room 101, Seeley G. Mudd Building
Sunday November 8, 1992

Sunday November 8, 1992, 8:30 a.m.10:50 a.m.
Special Session on Finite and Algebraic Groups, III
Room 144, Kaprielian Hall

8:30 a.m.
Extending Steinberg characters.
Walter Feit*, Yale University
(8772044) 
9:00 a.m.
Realizable sequences of partitions.
John G. Thompson*, University of Cambridge, England
(8772003) 
9:30 a.m.
GL_n(q) and PU_n(q^2) as Galois groups over under barred Q.
H. Ve\"olklein*, University of Florida
(8772006) 
10:00 a.m.
Long maximal subgroups of linear groups.
Douglas Brozovic, University of North Texas
Ron Solomon*, Ohio State University, Columbus
(8772033) 
10:30 a.m.
Sporadic groups of even and p type.
Richard Lyons*, Rutgers University, New Brunswick
Daniel Gorenstein, Rutgers University, New Brunswick
(8772036)

8:30 a.m.

Sunday November 8, 1992, 8:30 a.m.10:50 a.m.
Special Session on Gauge Theory and Four Manifolds, III
Room 146, Kaprielian Hall

Sunday November 8, 1992, 8:30 a.m.10:50 a.m.
Special Session on Nonlinear Hyperbolic PDE and Fluid Mechanics, III
Room 145, Kaprielian Hall

8:30 a.m.
On the ZakharovSchulman system.
Carlos E. Kenig*, University of Chicago
Gustavo Ponce, University of California, Santa Barbara
Luis Vega, University Autonoma de Madrid, Spain
(8773567) 
9:00 a.m.
On global actionangle variables for periodic KdV, Toda and nonlinear Schroedinger equations.
Thomas Kappeler*, Ohio State University, Columbus
(8773566) 
9:30 a.m.
Branch singularities of nonlinear hyperbolic systems with two speeds.
Nick Ercolani*, University of Arizona
(8773563) 
10:00 a.m.
Shock wave solutions of the Einstein equations.
Blake Temple*, University of California, Davis
Joel Smoller, University of Michigan, Ann Arbor
(8773564) 
10:30 a.m.
The initial value problem for higher order dispersive equations.
Gustavo Ponce*, University of California, Santa Barbara
Carlos E. Kenig, University of Chicago
Luis Vega, University Autonoma de Madrid, Spain
(8773565)

8:30 a.m.

Sunday November 8, 1992, 9:00 a.m.10:50 a.m.
Special Session on Spectral Geometry, II
Room 140, Kaprielian Hall

9:00 a.m.
Spectral theory of the Laplacian in domains with corners.
Gregory Eskin*, University of California, Los Angeles
(8775886) 
9:30 a.m.
Analytic torsion and Witten complex.
D. Burghelea, Ohio State University, Columbus
L. Friedlander*, University of Arizona
T. Kappeler, Ohio State University, Columbus
(8775801) 
10:00 a.m.
Analytic surgery and the Eta invariant.
Rafe Mazzeo*, University of Washington
(8775890) 
10:30 a.m.
Sobolev constants, injectivity radius, and volume.
Peter Petersen*, University of California, Los Angeles
(8775834)

9:00 a.m.

Sunday November 8, 1992, 9:00 a.m.10:50 a.m.
Special Session on Hyperbolic Geometry, III
Room 163, Kaprielian Hall

9:00 a.m.
Deformations of spherical structures on twobridge knot complements.
William D. Dunbar*, Pennsylvania State University, Erie
(8775792) 
9:30 a.m.
Tubes in hyperbolic manifolds and eigenvalue estimates.
Ara Basmajian*, University of Oklahoma
(8775809) 
10:00 a.m.
Topological rigidity and an extension of a theorem of Cannon and Thurston.
Yair N. Minsky*, University of Michigan, Ann Arbor
(8775377) 
10:30 a.m.
Deformations of singular hyperbolic structures.
Steve Kerckhoff*, Stanford University
(8775378)

9:00 a.m.

Sunday November 8, 1992, 9:00 a.m.10:50 a.m.
Special Session on Dynamical Systems, II
Room 147, Kaprielian Hall

9:00 a.m.
Discussion 
9:00 a.m.
Rigidity of onedimensional dynamical Cantor sets.
R. de la Llave*, University of Texas, Austin
R. P. Schafer, University of Texas, Austin
(8773402) 
9:30 a.m.
The Teichmuller geodesic flow.
Howard Masur*, University of Illinois, Chicago
(8775894) 
10:30 a.m.
Quasiconformal methods for the Denjoy problem on T^2.
Alec Norton*, University of Texas, Austin
(8775837)

9:00 a.m.

Sunday November 8, 1992, 11:00 a.m.11:50 a.m.
Invited Address
Syzygies of algebraic varieties.
Room 123, Seeley G. Mudd Building
Robert K. Lazarsfeld*, University of California, Los Angeles
(8771440) 
Sunday November 8, 1992, 2:00 p.m.3:50 p.m.
Special Session on Spectral Geometry, III
Room 140, Kaprielian Hall

2:00 p.m.
Isospectral plane domains.
Peter Doyle*, University of California at San Diego, La Jolla
(87758106) 
2:30 p.m.
Spectral diameter estimates for kregular graphs.
Gregory Quenell*, Bucknell University
(8775810) 
3:00 p.m.
On isospectral deformations on twostep nilmanifolds.
He Ouyang*, Enertronics Research, Inc., St. Louis, Missouri
(8775882) 
3:30 p.m.
Upper bound of the first eigenvalue for algebraic submanifolds.
JeanPierre Bourguignon, Ecole Polytechnic
Peter Li*, University of California, Irvine
Shin Tung Yau, Harvard University
(8775889)

2:00 p.m.

Sunday November 8, 1992, 2:00 p.m.3:50 p.m.
Special Session on Hyperbolic Geometry, IV
Room 163, Kaprielian Hall

2:00 p.m.
Geometrization of toroidal 3manifolds.
A. Casson*, University of California, Berkeley
(87757118) 
2:30 p.m.
Tunnel number and volume for hyperbolic 3manifolds.
Colin Adams*, Williams College
(8775776) 
3:00 p.m.
Constructing representations of braid groups.
D. D. Long*, University of California, Santa Barbara
J. A. Moody, Columbia University
(8775745) 
3:30 p.m.
Seifert fiber spaces and quasisymmetric groups.
G. Mess*, University of California, Los Angeles
(87757120)

2:00 p.m.

Sunday November 8, 1992, 2:00 p.m.4:20 p.m.
Special Session on Algebraic and Complex Geometry, II
Room 158, Kaprielian Hall

1:00 p.m.
Discussion 
2:00 p.m.
Discussion 
2:30 p.m.
Position of singularities of hypersurfaces and the topology of their complenments.
A. Libgober*, University of Illinois, Chicago
(8771446) 
3:30 p.m.
Vector bundles of small rank on projective spaces.
MeiChu Chang*, University of California, Riverside
(8771423) 
4:00 p.m.
Research in algebraic geometry.
Zlv Ran*, University of California, Riverside
(8771422)

1:00 p.m.

Sunday November 8, 1992, 2:00 p.m.4:20 p.m.
Special Session on Dynamical Systems, III
Room 147, Kaprielian Hall

2:00 p.m.
Stability analysis of Hamiltonian systems by geometric methods.
Tudor Ratiu*, University of California, Santa Cruz
(8775897) 
2:30 p.m.
Fractal properties of invariant subsets for piecewise monotonic maps on the interval.
Mariusz Urbanski*, University of North Texas
(8779930) 
3:00 p.m.
Topological versions of th WienerWintner theorem.
Peter Walters*, University of Warwick
(8772854) 
3:30 p.m.
Lyapunov exponents of monotone symplectic cocycles.
Maciej P. Wojtkowski*, University of Arizona
(8775879) 
4:00 p.m.
Exponential mixing and stochastic stability.
L. S. Young*, University of California, Los Angeles
(8775881)

2:00 p.m.

Sunday November 8, 1992, 2:00 p.m.5:10 p.m.
Special Session on Topics in Geometry and Physics, III
Room 101, Seeley G. Mudd Building

2:00 p.m.
Spectral theory of Neumann Laplacians.
Barry Simon*, California Institute of Technology
(8775117) 
2:40 p.m.
An algebraic approach to planar coloring problems.
Hubert Saleur*, Yale University
(8778212) 
3:20 p.m.
The Toda field equations on arbitrary Riemann surfaces.
Eric D'hoker*, University of California, Los Angeles
(8778320) 
4:00 p.m.
On correlation functions in integrable models of quantum field theory.
N. Reshetikhin*, Harvard University
(8778113) 
4:40 p.m.
Geometry of quantization of gauge theories.
Albert Schwarz*, University of California, Davis
(8778119)

2:00 p.m.