Resonant spaces for volume preserving Anosov flows

Center for Dynamics and Geometry Colloquium

Meeting Details

For more information about this meeting, contact Kristin Berrigan, Svetlana Katok, Kurt Vinhage.

Speaker: Gabriel Paternain, University of Caimbridge

Abstract: Recently Dyatlov and Zworski proved that the order of vanishing of the Ruelle zeta function at zero, for the geodesic flow of a negatively curved surface, is equal to minus the Euler characteristic of the surface. They more generally considered contact Anosov flows on 3-manifolds. In this talk, I will discuss how this result needs to be modified to include all volume-preserving Anosov flows. Several new features will appear, like the winding cycle and the helicity of the flow. A key question is the (non-)existence of Jordan blocks for one forms (semi-simplicity) and I will discuss examples where Jordan blocks do appear, as well as describe a resonance splitting phenomenon near contact flows when we deform with non-zero winding cycle. This is joint work with Mihajlo Cekic.

Room Reservation Information

Room Number: 114 McAllister

Date: 12/03/2019

Time: 3:00pm - 4:00pm