Topology and Geometric Group Theory Seminar

Lei ChenCaltech
Orbit Classification Theorem of homeomorphism groups acting on another manifold.

Tuesday, October 29, 2019 - 1:30pm
Malott 206

In this talk, I will describe joint work with Kathryn Mann about the action of Homeo(M) or Diff(M) (the identity component of the corresponding group) on another manifold N. In particular, we give an orbit classification theorem saying that every orbit is geometric. We then use this to prove some rigidity result when dim(N)