April 29, 2024 to May 4, 2024
Institut Henri Poincaré
Europe/Paris timezone

Group Actions and Rigidity: Around the Zimmer Program

Workshop: Low Dimensional Actions 

Monday, April 29 to Saturday, May 4, 2024 - IHP, Paris

This workshop brings together researchers working in rigidity, regularity, and the moduli spaces of groups acting on low dimensional manifolds.  This area has rich connections with the Zimmer program as well as with orderable groups, foliation theory, and three manifolds.  Many challenging problems regarding actions on high dimensional manifolds become more tractable in the low dimensional setting, which can then inform approaches in higher dimensions.
The focus will be on problems related to the generalized Zimmer program, either in theme such as rigidity of lattices and other geometric/algebraic examples, or in methods, such as Furstenburg boundaries, measure rigidity and random dynamics, hyperbolicity, and questions of regularity. 

Confirmed speakers:

  • Thomas Barthelmé (Queen's University)
  • Jonathan Bowden (Universität Regensburg)
  • Aaron Brown (Northwestern University)
  • Joaquin Brum (Universidad de la República de Uruguay)
  • Filippo Calderoni (Rutgers University)
  • Lei Chen (University of Maryland)
  • Hélène Eynard-Bontemps (Université Grenoble Alpes)
  • Sebastian Hurtado (Yale University)
  • KyeongRo Kim (Seoul National University)
  • Sang-Hyun Kim (KIAS) 
  • Victor Kleptsyn (Université de Rennes)
  • Frédéric Le Roux (Sorbonne Université)
  • Isabelle Liousse (Université de Lille)
  • Yash Lodha (University of Hawaii at Manoa)
  • Kathryn Mann (Cornell University)
  • Andrés Navas (Universidad de Santiago de Chile)
  • Maxime Wolff (Université Toulouse III - Paul-Sabatier)

Organising committe:

  • David Fisher (Rice University)
  • Sebastian Hensel (University of Munich)
  • Kathryn Mann (Cornell University)
  • Cristobal Rivas (Universidad de Chile)
  • Michele Triestino (Université de Bourgogne)


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Institut Henri Poincaré
Amphithéâtre Hermite / Darboux
11 rue Pierre et Marie Curie 75005 Paris
Registration for this event is currently open.