Analysis of Fluids and Related Topics: Winding of Brownian trajectories and heat kernels on covering spaces

Speaker: 
Gautam Iyer, Carnegie Mellon University
Date: 
Dec 7 2017 - 4:30pm
Event type: 
Analysis of Fluids and Related Topics
Room: 
Fine Hall 322
Abstract: 

We study the long time behaviour of the heat kernel on Abelian covers of compact Riemannian manifolds. For manifolds without boundary work of Lott and Kotani-Sunada establishes precise long time asymptotics. Extending these results to manifolds with boundary reduces to a "cute" eigenvalue minimization problem, which we resolve for a Dirichlet and Neumann boundary conditions. We will show how these results can be applied to studying the "winding" of Brownian trajectories in Riemannian manifolds.