Mathematical Physics and Harmonic Analysis Seminar

Date: March 5, 2021

Time: 2:00PM - 2:50PM

Location: Zoom

Speaker: Rostislav Grigorchuk, Texas A&M University

Title: Spectra of groups and graphs: a short survey.

Abstract: In my talk I will touch on such topics as the shape of the spectrum of Cayley and Schreier graphs of finitely generated groups, type of spectral measures, the question of A.Valette "Can one hear the shape of a group", and the relation to the random Schodinger operator.

Based on numerous results with coauthors: L.Bartholdi, A.Zuk, Z.Sunic, D.Lenz, T.Nagnibeda, A.Perez, B.Simanek, A.Dudko and others.