Recently\, I defined a notion of limit for finite Schreier graphs. It turns out that the natural limit objects are stable continuous group actions on the Cantor set. The limit notion leads to the definition of qualitative weak equivalence (this notion has already been defined by M atui and Li for minimal actions of the integers). I will show some results on the space of weak equivalence classes and will allude to some applicat ions in the theory of local distributed algorithms.

LOCATION:MA A1 10 https://plan.epfl.ch/?room=MAA110 STATUS:CONFIRMED END:VEVENT END:VCALENDAR