Friday, January 11, 2019
3:00 pm

Geometry and Topology Seminar

Rigidity and geometricity of surface group actions
Kathryn Mann, Department of Mathematics, Brown University
An action of a finitely generated group G on a manifold M is called "geometric" if it comes from an embedding of G as a lattice in a Lie group acting transitively on M. In this talk, I'll explain some past work on rigidity of geometric actions on the circle, and newer joint work with Maxime Wolff that effectively characterizes geometric actions of surface groups on the circle by dynamical rigidity.
Contact Mathematics Department mathinfo@caltech.edu at 626-395-4335
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