2016•arXiv (Cornell University)Open access
On commensurability of right-angled Artin groups I: RAAGs defined by\n trees of diameter 4
Montserrat Casals‐Ruiz, Ilya Kazachkov, A. F. Zakharov
Open full text 0 citations
Abstract
In this paper we study the classification of right-angled Artin groups up to\ncommensurability. We characterise the commensurability classes of RAAGs defined\nby trees of diameter 4. In particular, we prove a conjecture of Behrstock and\nNeumann that there are infinitely many commensurability classes. Hence, we give\nfirst examples of RAAGs that are quasi-isometric but not commensurable.\n
Open-access reader