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

• Montserrat Casals-Ruiz ^[1] ; Ilya Kazachkov ^[1] ; Alexander Zakharov ^[1]
  1. [1] Universidad del País Vasco/Euskal Herriko Unibertsitatea

     Universidad del País Vasco/Euskal Herriko Unibertsitatea

     Leioa, España

     
• Localización: Revista matemática iberoamericana, ISSN 0213-2230, Vol. 35, Nº 2, 2019, págs. 521-560
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • 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.