Summer School 2024 - Low dimensional Topology

Collection Summer School 2024 - Low dimensional Topology

Organizer(s) Scientific Committee: Greg Kuperberg, Christine Lescop, Gwénaël Massuyeau, Jean-Baptiste Meilhan / Organization Committee: Christine Lescop, Gwénaël Massuyeau, Jean-Baptiste Meilhan

Date(s) 17/06/2024 - 05/07/2024

linked URL https://if-summer2024.sciencesconf.org

00:00:00 / 00:00:00

37 42

Finite groups of outer automorphisms of right-angled Artin groups

By Karen Vogtmann

For any right-angled Artin group $A_G$ there is a contractible “outer space” $O_G$ on which the outer automorphism group $Out(A_G)$ acts properly. I will show how the combinatorics of the defining graph $G$ can be used to find a fixed point for the action of a finite subgroup of $Out(A_G)$, and how such fixed points can give information about finite subgroups of $Out(A_G)$. This is joint work with Corey Bregman and Ruth Charney.

Information about the video

Date of recording 01/07/2024
Date of publication 07/01/2026
Institution Institut Fourier
Licence CC BY NC ND
Language English
Format MP4

Domain(s)

Geometric Topology

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