Vincent Dumoncel: Isoperimetric profiles and quantitative orbit equivalence for lampshufflers

Quand : 9 juin 2026 à 11:15

Où : Salle 112

Organisé par : Institut Henri Poincaré

Lampshufflers are semi-direct products having a geometry close to the one of lamplighters. in geometric group theory, they are also a source of examples of groups with unexpected and exotic behaviours. I will present a joint work with Corentin Correia, in which we study these groups from an analytical, geometric and measured point of view. In particular, we show a stability property for the existe