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Amenable covers of right-angled Artin groups (2204.01162v1)
Published 3 Apr 2022 in math.GR and math.AT
Abstract: Let $A_L$ be the right-angled Artin group associated to a finite flag complex $L$. We show that the amenable category of $A_L$ equals the virtual cohomological dimension of the right-angled Coxeter group $W_L$. In particular, right-angled Artin groups satisfy a question of Capovilla--L\"oh--Moraschini proposing an inequality between the amenable category and Farber's topological complexity.
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