2024 - T2 - Group actions and rigidity: around the Zimmer program

Collection 2024 - T2 - Group actions and rigidity: around the Zimmer program

Organizer(s) Brown, Aaron ; Fisher, David ; Mann, Kathryn ; Pecastaing, Vincent ; Spatzier, Ralf
Date(s) 15/04/2024 - 05/07/2024
linked URL https://indico.math.cnrs.fr/event/9043/
71 86

Dynamics of automorphism groups of real and complex projective surfaces - Part 2

By Romain Dujardin

In a series of papers in collaboration with Serge Cantat, we have studied group actions by automorphisms on compact complex surfaces. In these lectures, I will review our results and discuss a number of meaningful examples. Depending on time, the following results will be discussed: action on cohomology and the notion of non-elementary group, classification of stationary and invariant measures, (non-)Zariski density of finite orbits, asymptotic distribution of infinite orbits.

Watch part 1

Watch part 3

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