The meeting will focus on the orbit equivalence relation among dynamical systems of geometric nature, given by group actions, foliated spaces, tilings,... The theory has grown studying topological equivalence on one hand and measurable equivalence on the other hand. The aim of the meeting is to make connections between the techniques developed on both sides and the interactions to related topics like operator algebras. The structure will be similar to that of the previous editions with some survey lectures, some talks (including talks by young researchers) and discussion workshops. A large part of the time will be devoted to informal discussions.

Scientific Committee:

• Itai Benjamini (The Weizmann Institute of Science)
• Damien Gaboriau (ENS Lyon)
• Jean-Marc Gambaudo (University of Nice Sophia-Antipolis)
• Thierry Giordano (University of Ottawa)

Organizing Committee:

• Fernando Alcalde (University of Santiago de Compostela)
• Nuria Corral (University of Cantabria)
• Françoise Dal'Bo (University of Rennes)
• Bertrand Deroin (University of Paris-Sud 11)
• Samuel Petite (University of Picardie)

For more information and registration please consult http://www.usc.es/congresos/sag2012/index.html or contact the organizers at seminario.atlantico.geometria@gmail.com