Séminaires : Séminaire Géométrie et Topologie

Ce séminaire s’adresse aux géomètres, topologues et dynamiciens au sens large. Il est rattaché aux équipes Analyse Algébrique et Analyse Complexe et Géométrie. Les exposés seront accessibles à une audience large, doctorants inclus. Il se tiendra à Jussieu, le jeudi à 11h, en salle 15-25 502. Le séminaire a l'agenda google suivante: https://calendar.google.com/calendar/b/0?cid=dDgzNTJoczNmdDhlMm5nb2IzMXJwaWpsdHNAZ3JvdXAuY2FsZW5kYXIuZ29vZ2xlLmNvbQ

Hyperbolic once-punctured torus bundles are a special class of 3-manifolds that are generally very well understood. Yet, there are some interesting open questions regarding the character varieties of representations of their fundamental groups into SL(2,C) and PSL(2,C), especially concerning their topology  and how much topological information can be obtained from about the bundles. This talk is about work with Youheng Yao (arXiv:2206.14954) that introduces  some new methods that apply more generally and yields new results on these character varieties in particular.