Ric Wade: Relative automorphisms of right-angled Artin groups
We look at the group of outer automorphisms of a right-angled
Artin group preserving a set of special subgroups (i.e. subgroups coming
from subgraphs of the defining graph). I will give some examples to show
how these groups arise naturally in the study of the whole automorphism
group, and sketch how such groups are finitely generated, and up to
finite index, have finite classifying spaces. This is joint work with
Matthew B Day.
