Speaker: Ishan Banerjee
Affiliation: Ohio State University
Title of Talk: Monodromy actions on character varieties
Date: May 15, 2026
Time: 11:00:00 Hours
Venue: A-369

Abstract: Let $G$ be a semisimple algebraic group. Let $\Sigma$ be a Riemann surface. Let $\Gamma \subseteq \operatorname{Mod}(\Sigma)$. We have an action of $\Gamma$ on the $G$ character variety of $\Sigma$. We prove that if $\Gamma$ is the monodromy group of a sufficiently ample Lefschetz pencil then $\Gamma$ acts with Zariski dense orbits on the $G$-character variety, this answers a question of Katzarkov Pantev and Simpson.