On commensurability of right-angled Artin groups I: RAAGs defined by trees of diameter 4
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Universidad del País Vasco/Euskal Herriko Unibertsitatea
info
Universidad del País Vasco/Euskal Herriko Unibertsitatea
Lejona, España
ISSN: 0213-2230
Año de publicación: 2019
Volumen: 35
Número: 2
Páginas: 521-560
Tipo: Artículo
Otras publicaciones en: Revista matemática iberoamericana
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.