Presentation at Joint IAS/PU Groups and Dynamics Seminar

I gave a presentation at the Groups and Dynamics Seminar on December 9, 2025. The talk was about the Fenchel-Nielsen coordinates for infinite Riemann surfaces and the type problem. In particular, I presented a solution to the Kahn and Markovic conjecture. The recording is available here: https://www.ias.edu/video/when-geodesic-flow-ergodic