Algebraic invariants for Bestvina-Brady groups

الأصل · EN

Bestvina-Brady groups arise as kernels of length homomorphisms from right-angled Artin groups G to the integers. Under some connectivity assumptions on the flag complex Δ, we compute several algebraic invariants of such a group N, directly from the underlying graph. As an application, we give examples of Bestvina-Brady groups which are not isomorphic to any Artin group or arrangement group.