Seminar | November 5 | 4:10-5 p.m. | 740 Evans Hall
Colin Guillarmou, Orsay
We discuss new results on the geometric problem of determining a Riemannian metric with negative curvature on a closed manifold from the lengths of its periodic geodesics. We obtain local rigidity results in all dimensions using combination of dynamical system results with microlocal analysis. Joint work with Thibault Lefeuvre.