Automorphisms of large-type free-of-infinity Artin groups

2023/04/13 by Vaskou, Nicolas · 2 citations
#20E36 #20F28 #20F36 #20F65 #FOS: Mathematics #Group Theory (math.GR)

paper · doi:10.48550/arxiv.2304.06666

Abstract

We compute explicitly the automorphism and outer automorphism group of all large-type free-of-infinity Artin groups. Our strategy involves reconstructing the associated Deligne complexes in a purely algebraic manner, i.e. in a way that is independent from the choice of standard generators for the groups.

Cited by

• On the finiteness properties of fixed subgroups of automorphisms
• A combination theorem for the twist conjecture for Artin groups

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