Equivariant Morse theory on Vietoris-Rips complexes & universal spaces for proper actions

preprint2021arXivOpen access

Abstract

We formalize an equivariant version of Bestvina-Brady discrete Morse theory, and apply it to Vietoris-Rips complexes in order to exhibit finite universal spaces for proper actions for all asymptotically CAT(0) groups.

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