2 papers
math.GR2004
Automorphism groups of some affine and finite type Artin groups
Ruth Charney, John Crisp
We observe that, for each positive integer n > 2, each of the Artin groups of finite type A_n, B_n=C_n, and affine type \tilde A_{n-1} and \tilde C_{n-1} is a central extension of…
math.GR2002
Bestvina's normal form complex and the homology of Garside groups
Ruth Charney, John Meier, Kim Whittlesey
A Garside group is a group admitting a finite lattice generating set D. Using techniques developed by Bestvina for Artin groups of finite type, we construct K(π,1)s for Garside gro…