Séminaires : Séminaire d'Algèbres d'Opérateurs

Equipe(s) : ao,
Responsables :Matthieu Joseph, Omar Mohsen
Email des responsables :
Salle : 1013
Adresse :Sophie Germain
Description

Orateur(s) Kostyantyn Krutoy - IMJ-PRG,
Titre Uniform Roe algebras: rigidity and K-theory
Date16/04/2026
Horaire14:00 à 15:00
Diffusion
Résume

Résumé : Uniform Roe algebras are C*-algebras associated to uniformly locally finite (ULF) metric spaces that capture their coarse geometry. Their K-theory groups are of particular importance for variants of the Baum-Connes and Novikov conjectures.

In this talk, we will introduce the 0th uniformly finite homology group for ULF metric spaces and construct the comparison map that relates it to the K-theory of the uniform Roe algebra. We will show that this map is intrinsically connected to the rigidity phenomenon of uniform Roe algebras.

Salle1013
AdresseSophie Germain
© IMJ-PRG