7 citations · 16 across the 17 of their papers we have counts for
4 papers · 1 filter
Narrow normal subgroups of Coxeter groups and of automorphism groups of Coxeter groups
Luis Paris, Olga Varghese
By definition, a group is called narrow if it does not contain a copy of a non-abelian free group. We describe the structure of finite and narrow normal subgroups in Coxeter groups…
On normal subgroups in automorphism groups
Philip Möller, Olga Varghese
We describe the structure of virtually solvable normal subgroups in the automorphism group of a right-angled Artin group . In particular, we prove that a finite nor…
A note on semicompleteness of graph products of abelian groups
Philip Möller, Olga Varghese
In this short note we prove that a graph product of finitely generated abelian groups is semicomplete -- that is the kernel of the natural homomorphism ${\rm Aut}(G_Γ)\to{\rm…
On parabolic subgroups of Artin groups
Philip Möller, Luis Paris, Olga Varghese
Given an Artin group , a common strategy in the study of is the reduction to parabolic subgroups whose defining graphs have small diameter, i.e. showing that has a…