100, rue des maths 38610 Gières / GPS : 45.193055, 5.772076 / Directeur : Louis Funar

Adrien Abgrall

Graphs, groups and non-positive curvature
Jeudi, 22 Février, 2024 - 17:00 à 18:00
Résumé : 

A geometric group theorist likes to study countable groups by their actions on various metric spaces such as manifolds and cellular complexes (with graphs as a special case). I will explain how to build geometric models for groups and present properties of non-positive curvature that can appear in such models. I intend to show recipes for building many interesting examples, mostly using graphs of groups and CAT(0) cube complexes.

Institution de l'orateur : 
IRMAR (Rennes)
Thème de recherche : 
Salle : 
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