Random Hyperbolic Surfaces Via Flat Geometry

Speaker: Aaron Calderon

Date: Thu, May 6, 2021

Location: Online, Zoom, PIMS, University of Washington

Conference: Pacific Dynamics Seminar

Subject: Mathematics

Class: Scientific


Mirzakhani gave an inductive procedure to build random hyperbolic surfaces by gluing together smaller random pieces along curves. She proved that as the length of the gluing curve grows, these families equidistribute in the moduli space of hyperbolic surfaces. In this talk, I’ll explain how the conjugacy (exposited in James’s talk) between the earthquake and horocycle flows provides a template for translating equidistribution results for flat surfaces into equidistribution results for hyperbolic ones. Using this correspondence, we address Mirzakhani’s twist torus conjecture and exhibit new limiting distributions for hyperbolic surfaces built out of symmetric pieces. This is joint work (in progress) with James Farre.