Dynamical Systems Seminar

Title: The Euler class of groups acting on the plane
Speaker: Danny Calegari
Speaker Info: Caltech
Brief Description:
Special Note:

We give a complete homological classification of actions of surface groups on the plane, in every degree of smoothness. The most interesting case involves actions of Z+Z which are at least C^1 or smoother; the analysis of such actions uses theorems of Brouwer and Morton Brown.
Date: Thursday, November 11, 2004
Time: 3:00pm
Where: TBA
Contact Person: Prof. Keith Burns
Contact email: burns@math.northwestern.edu
Contact Phone: 847-491-3013
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