PSU Mark
Eberly College of Science Mathematics Department

Meeting Details

For more information about this meeting, contact Federico Rodriguez Hertz, Stephanie Zerby, Anatole Katok, Svetlana Katok.

Title:Entropy Rigidity in Riemannian and Hilbert geometries
Seminar:Dynamical systems seminar
Speaker:Thomas Barthelmé, Penn State
I will talk about an entropy rigidity result for compact Riemannian manifolds, less famous then BCG, of Ledrappier and Wang and a generalization of it to finite volume (joint work with Ludovic Marquis and Andrew Zimmer). The great advantage of the Ledrappier-Wang result is that it does not assume that the metric is negatively curved. I will try to present some of the ingredients of the proof (which involve building the Patterson-Sullivan measure in general and getting an integral formula linking that measure to the volume entropy). If time permit, I will also explain how one can use that result (with others) to get an entropy rigidity result in Hlbert geometry.

Room Reservation Information

Room Number:MB114
Date:03 / 28 / 2016
Time:03:35pm - 04:35pm