Time

Location

Speaker

Seminar Website

Abstract

In the 70's Donsker and Varadhan proved a precise log-limit for the negative
exponential moment of the number of sites visited by a simple random walk in
Z^d.  Saloff-Coste and Pittet related this result to the return probability
of the random walk on the wreath product of Z^d with a finite group.  In
this talk I will describe a coarse graining technique that provides the
log-asymptotic decay rate of the negative exponential moment of the number
of visited sites on the Cayley graphs of groups with polynomial volume
growth.