Event
Pierre-Emmanuel Caprace, Universit茅 catholique de Louvain
Monday, November 21, 2016 16:30to17:30
Burnside Hall
Room 1234, 805 rue Sherbrooke Ouest, Montreal, QC, H3A 0B9, CA
Commensuration index growth.
The title refers to an asymptotic invariant of a pair (G, U) consisting of a group G and a commensurated subgroup U < G such that G is generated by finitely many cosets of U. The goal of the talk is to introduce this invariant, discuss examples and present the first results of its investigation. This is based on joint work with Colin Reid and Phillip Wesolek.