Séminaires : Séminaire d'Algèbres d'Opérateurs

Equipe(s) : ao,
Responsables :Pierre Fima, François Le Maître, Romain Tessera
Email des responsables :
Salle : 1013
Adresse :Sophie Germain
Description

Orateur(s) Juan Paucar - IMJ-PRG,
Titre Quantitative measured subgroups for locally compact groups
Date13/04/2023
Horaire14:00 à 15:00
Diffusion
Résume
Quantitative Measured Subgroups have been introduced by Tessera, Le Maître, Delabie and Koivisto  as a quantitative asymmetric analogue of Measure Equivalence for discrete groups. In this talk, I will introduce the same notion for locally compact compactly generated unimodular groups, proving the monotonicity of the isoperimetric profile in the locally compact case as well as the existence of a quantitative measured subgroup coupling from a regular embedding between locally compact groups (this is a measured analogue of coarse embedding between groups). As a consequence of this, I will finish by proving the monotonicity of the isoperimetric profile for regular embeddings between locally compact compactly generated unimodular groups. 
Salle1013
AdresseSophie Germain
© IMJ-PRG