Abstract
We generalize the peak reduction algorithm (Whitehead’s theorem) for free groups to a theorem about a general right-angled Artin group . As an application, we find a finite presentation for the automorphism group that generalizes McCool’s presentation for the automorphism group of a finite rank free group. We also consider a stronger generalization of peak reduction, giving a counterexample and proving a special case.
Citation
Matthew B Day. "Peak reduction and finite presentations for automorphism groups of right-angled Artin groups." Geom. Topol. 13 (2) 817 - 855, 2009. https://doi.org/10.2140/gt.2009.13.817
Information