Automorphisms of two-dimensional RAAGS and partially symmetric automorphisms of free groups. (Q1046611)
From MaRDI portal
scientific article
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Automorphisms of two-dimensional RAAGS and partially symmetric automorphisms of free groups. |
scientific article |
Statements
Automorphisms of two-dimensional RAAGS and partially symmetric automorphisms of free groups. (English)
0 references
22 December 2009
0 references
Summary: We compute the virtual cohomological dimension of the group of partially symmetric outer automorphisms of a free group. We use this to obtain new upper and lower bounds on the VCD of the outer automorphism group of a 2-dimensional right-angled Artin group. In the case of a right-angled Artin group with defining graph a tree, the bounds agree.
0 references
right-angled Artin groups
0 references
symmetric automorphisms
0 references
virtual cohomological dimension
0 references
outer automorphism groups of free groups
0 references
