MSc Seminar Random walks on trees and hyperbolic groups

The seminar is planned to take place as a block in the middle or at the end of the semester. We will discuss the details at the first meeting which is scheduled for April 20th, 2021 at 14:00 online via Zoom:

Link: https://wwu.zoom.us/j/67204618640?pwd=TXdiSFRhc2I4OURaZXFVcU5qMVR5UT09 
Password: trees

Eintrag der Veranstaltung im kommentierten Vorlesungsverzeichnis

Content:

Simple random walks often behave differently on trees than on euclidean lattices. In particular, there is a deep connection between its speed, its tail behavior, its entropy and possession of non-constant bounded harmonic functions. We will look at some examples of these phenomena and see how such behavior extends to spaces which "look like" trees, i.e. Cayley graphs of hyperbolic groups.

Please enroll in the Learnweb course for this seminar.