University of Toronto
               PDE/Applied Math/Analysis Seminar
                 Monday October 24, 4:30-5:30pm
                      213 Koffler Center
                            




SPEAKER:  Stephen Gustafson (UBC)

TITLE:    Schroedinger maps near harmonic maps

ABSTRACT: The Schroedinger map equation is a model for 
          ferromagnets, as well as a geometric (and 
          nonlinear) version of the linear Schroedinger
          equation. A basic open problem is whether or 
          not finite energy solutions can form 
          singularities in finite time. We describe some 
          results for equivariant Shroedinger maps from 
          2+1-dimensional space-time into the 2-sphere, 
          which have energy close to the energy of harmonic 
          maps. This is joint work with Kyungkeun Kang and 
          Tai-Peng Tsai.



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University of Toronto PDE/Applied Math/Analysis Seminar 
http://www.math.toronto.edu/appmath/

2005-2006 organizers:
          Pieter Blue           pblue@ math.toronto.edu
          Almut Burchard        almut@ math.toronto.edu
          Bob Jerrard           rjerrard@ math.toronto.edu
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