AMS Sectional Meeting Program by Special Session
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1997 Spring Western Sectional Meeting
Corvallis, OR, April 1920, 1997
Meeting #921
Associate secretaries:
William A Harris, Jr, AMS
wharris@math.usc.edu
Special Session on Geometric Methods in Mathematical Physics

Saturday April 19, 1997, 8:00 a.m.10:50 a.m.
Special Session on Geometric Methods in Mathematical Physics, I
Room 109, Strand Agricultural Hall
Organizers:
Juha Pohjanpelto, Oregon State University juha@math.orst.edu

8:00 a.m.
Some Global Properties of Vacuum Spacetimes with $U(1)xU(1)$Isometry
James A. Isenberg*, University of Oregon
(92183171)

8:25 a.m.
Differential Invariants and Moving Frames
Mark E. Fels*, University of Minnesota
Peter J. Olver, University of Minnesota
(9215886)

8:50 a.m.
Conservation laws of hyperbolic MongeAmpere systems
Lucas Hsu*, University of Arizona
(92153137)

9:15 a.m.
Characteristic Lagrangians and Local Obstructions to GlobalExistence Problems in Differential Geometry
Ian M. Anderson*, Utah State University
Mark E. Fels, University of Minnesota
(92158112)

9:40 a.m.
Direct construction of conservation laws from field equations
Stephen C Anco, University of British Columbia
George W Bluman*, University of British Columbia
(9213573)

10:05 a.m.
The multidimensional Darboux transformation.
Niky Kamran*, McGill University
(92158162)

10:30 a.m.
Symmetries, conservation laws, and variational principles forvector field theories
Ian M. Anderson, Utah State University
Juha Pohjanpelto*, Oregon State University
(92158104)

Saturday April 19, 1997, 4:15 p.m.6:15 p.m.
Special Session on Geometric Methods in Mathematical Physics, II
Room 109, Strand Agricultural Hall
Organizers:
Juha Pohjanpelto, Oregon State University juha@math.orst.edu

4:15 p.m.
Continuum Solitons and Matrix Integrals
Motohico Mulase*, University of California, Davis
(92158124)

4:40 p.m.
Particle motion in classical field theories
David M Stuart*, IHES, Le Bois Marie, France
(92135168)

5:05 p.m.
Oscillatory phenomena and complex dimensions of fractal strings, with applications to the critical zeros of the Riemann zetafunction
Michel L. Lapidus*, University of California, Riverside
(92158172)

5:30 p.m.
Asymptotic conservation laws in classical field theory
Charles Torre*, Utah State University.
(92183174)

5:55 p.m.
Degenerate solutions of general relativity from 2dimensional topological field theory
John C. Baez*, University of California, Riverside
(9218349)

Sunday April 20, 1997, 8:00 a.m.10:50 a.m.
Special Session on Geometric Methods in Mathematical Physics, III
Room 109, Strand Agricultural Hall
Organizers:
Juha Pohjanpelto, Oregon State University juha@math.orst.edu

8:00 a.m.
The braid group, periodic orbits, and the planar Nbody problem
Richard W. Montgomery*, University of California, Santa Cruz
(9215831)

8:25 a.m.
Group Drift over the Ergodic Domains and Attractors
Serge Preston*, Portland State University, Portland, OR
(92170122)

8:50 a.m.
Reduction by stages
Tudor S Ratiu*, University of California, Santa Cruz
(92158158)

9:15 a.m.
Periodic orbits of Hamiltonian systems and dynamics in magnetic fields
Viktor L. Ginzburg*, University of California, Santa Cruz
(92158114)

9:40 a.m.
Hamiltonian reduction of Einstein's equations of general relativity
Arthur E. Fischer*, University of California, Santa Cruz
Vincent Moncrief, Yale University
(92183166)

10:05 a.m.
A Conformal Mapping Problem Arising in String Theory.
Jeff Rabin*, University of California, San Diego.
(92181155)

10:30 a.m.
Homological vector fields and their applications
Arkady Vaintrob*, New Mexico State University and Brigham Young University
(9215846)
Inquiries: meet@ams.org