"Geometry and Analysis on Groups" Research Seminar

Time: 2018.01.09, 15:15–17:00
Location: Seminarraum 9, Oskar-Morgenstern-Platz 1, 2.Stock
Title: "The Poincaré profile of a graph or group."
Speaker: John Mackay (University of Bristol)
Abstract: Benjamini, Schramm and Timar introduced the notion of "separation profile" for a graph or finitely generated group. I will discuss a family of invariants that generalise this idea, examples of the values obtained and applications to non-embedding results. Joint work with David Hume and Romain Tessera.