Groupoids and operator algebras. Applications to analysis, geometry and dynamics.

Europe/Paris
Hôtel Dupanloup (Orléans)

Hôtel Dupanloup

Orléans

Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
Description

Conference in honor of Jean Renault

This conference aims to bring together mathematicians working on groupoids and operator algebras, a field in which Jean Renault has been an expert for many years. The theory is rich enough to have applications in very different fields such as analysis, geometry and dynamics. This meeting will definitely be a great opportunity to discuss these applications. We would like to highlight the central role played by groupoids as a unifying language and to promote them among young researchers.

Download titles and abstracts (pdf).
Download the poster (pdf).

Participants
  • Alain Valette
  • Alex Kumjian
  • Ali Raad
  • Alla Kuznetsova
  • Arlan Ramsay
  • Aurelien Alvarez
  • Bertrand Monthubert
  • Birant Ramazan
  • Camille Laurent-Gengoux
  • Cheng Chen
  • Claire Anantharaman
  • Claire Debord
  • Damien Gaboriau
  • Dana Williams
  • Frank Taipe
  • François Le Maître
  • Frederick Goodman
  • frédéric cadet
  • Georges Skandalis
  • Henrik Kreidler
  • Hermann Pfitzner
  • Hervé Oyono-Oyono
  • Indira Chatterji
  • Jean Renault
  • Jean-François Havet
  • Jean-Marie Lescure
  • Jean-Michel Vallin
  • Johannes Christensen
  • Kang Li
  • Karen Strung
  • Kyle Austin
  • Leonid Vainerman
  • luc hillairet
  • Marie-Claude David
  • Marius Ionescu
  • Mariusz Tobolski
  • Michel Enock
  • Michel Hilsum
  • Nawfal El Hage Hassan
  • Nikolai Edeko
  • Omar Mohsen
  • Patricia Boivin
  • Patrick Maheux
  • Paul Muhly
  • Pierre Julg
  • Rishikesh Yadav
  • Robert Yuncken
  • Ruy Exel
  • saad baaj
  • Siegfried Echterhoff
  • Sorin Popa
  • Stefaan Vaes
  • Stephane Vassout
  • Sundar Shanmugasundaram
  • Sylvain Arnt
  • Sylvain Lavau
  • Tattwamasi Amrutam
  • Valentin Deaconu
  • Vittoria Pierfelice
  • Xin Li
    • 13:45 14:00
      Welcome Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
    • 14:00 14:30
      Some observations regarding the contributions of Jean Renault as seen from Boulder, Arlan Ramsay Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
    • 14:40 15:25
      Groupoid methods and singular spaces in free analysis 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Paul Muhly (University of Iowa)
    • 15:30 16:00
      Coffee Break Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
    • 16:05 16:50
      Blowup and deformation groupoids in relation with index theory 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Claire Debord (Université Paris Diderot)
    • 17:00 17:45
      Witten deformation and Lie groupoids 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Omar Mohsen (Université Paris Diderot)
    • 17:55 18:30
      Remembering Victor, Alla Kuznetsova and Jean Renault 35m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Alla Kuznetsova (Kazan Federal University, Institute of Physics)
    • 09:00 09:45
      Pseudodifferential operators from tangent groupoids 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Robert Yuncken
    • 09:55 10:15
      Coffee Break Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
    • 10:20 11:05
      Diffeological groupoids and their operator algebras 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Iakovos Androulidakis
    • 11:15 12:00
      Stability of Lie groupoid C*-algebras and of C*-algebras of singular foliations 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Georges Skandalis (Université Paris Diderot)
    • 12:15 13:30
      Lunch
    • 14:00 14:45
      Fourier integral operators on Lie groupoids 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Stephane Vassout
    • 14:50 15:35
      K-theory, groupoids and propagation 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Herve Oyono-Oyono
    • 15:40 16:00
      Coffee Break Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
    • 16:05 16:50
      The homology of ample groupoids and the Matui conjecture 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Alex Kumjian
    • 17:00 17:45
      CCR flows associated to closed convex cones 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Sundar Shanmugasundaram (Institute of Mathematical Sciences)
    • 09:00 09:45
      A groupoid approach to classifiable C*-algebras 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Xin Li
    • 09:55 10:15
      Coffee Break Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
    • 10:20 11:05
      Weak Cartan subalgebras of C*-algebras 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Ruy Exel (UFSC & UNL)
    • 11:15 12:00
      Groupoids from minimal dynamical systems 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Karen Strung (Radboud University)
    • 12:15 13:30
      Lunch
    • 13:50 14:35
      Crossed products and amenability of group actions 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Siegfried Echterhoff
    • 15:00 17:30
      Visite de la cathédrale d'Orléans
    • 19:15 22:00
      Conference dinner

      https://www.restaurant-lachancellerie.fr

    • 09:00 09:45
      On the first cohomology group of a free minimal Z^d-action on the Cantor set 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Thierry Giordano
    • 09:55 10:15
      Coffee Break Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
    • 10:20 11:05
      On non-standard limits of graphs and some orbit equivalence invariants 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Damien Gaboriau (CNRS Ens-Lyon)
    • 11:15 12:00
      Classification of regular subalgebras of the hyperfinite II_1 factor 45m Hôtel Dupanloup

      Hôtel Dupanloup

      Orléans

      Le Studium, centre international de recherche 1 rue Dupanloup 45000 Orléans
      Speaker: Stefaan Vaes (KU Leuven)
    • 12:15 13:30
      Lunch