Séminaires : Séminaire Général de Logique

Equipe(s) : lm,
Responsables :S. Anscombe, A. Vignati
Email des responsables : sylvy.anscombe@imj-prg.fr, vignati@imj-prg.fr
Salle : 1013
Adresse :Sophie Germain
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Orateur(s) Marcin Sabok - McGill University,
Titre Hyperfiniteness at Gromov boundaries
Date28/10/2020
Horaire16:00 à 17:15
Diffusion https://u-paris.zoom.us/rec/share/0qu58Mto4D8qrql9cDAvHIc3m3PqWvTHUntPo8-PuX2w8c8C7JwtOukMhBHOOKQ2.UMKlkrlA_L9QM3lu
RésumeI will discuss recent results establishing hyperfiniteness of equivalence relations induced by actions on Gromov boundaries of various hyperbolic spaces. This includes boundary actions of hyperbolic groups (joint work with T. Marquis) and actions of the mapping class group on boundaries of the arc graph and the curve graph (joint work with P. Przytycki)
Salle1013
AdresseSophie Germain
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