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Resumen de On commensurability of right-angled Artin groups I: RAAGs defined by trees of diameter 4

Montserrat Casals Ruiz Árbol académico, Ilya Kazachkov Árbol académico, Alexander O. Zakharov

  • In this paper we study the classification of right-angled Artin groups up to commensurability. We characterise the commensurability classes of RAAGs defined by trees of diameter 4. In particular, we prove a conjecture of Behrstock and Neumann that there are infinitely many commensurability classes of such RAAGs.

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