82 citations · 281 across the 20 of their papers we have counts for
4 papers · 2 filters
Vertex finiteness for splittings of relatively hyperbolic groups
Vincent Guirardel, Gilbert Levitt
Consider a group G and a family of subgroups of G. We say that vertex finiteness holds for splittings of G over if, up to isomorphism, there are only fi…
Quotients and subgroups of Baumslag-Solitar groups
Gilbert Levitt
We determine all generalized Baumslag-Solitar groups (finitely generated groups acting on a tree with all stabilizers infinite cyclic) which are quotients of a given Baumslag-Solit…
Residual properties of automorphism groups of (relatively) hyperbolic groups
Gilbert Levitt, Ashot Minasyan
We show that Out(G) is residually finite if G is a one-ended group that is hyperbolic relative to virtually polycyclic subgroups. More generally, if G is one-ended and hyperbolic r…
Generalized Baumslag-Solitar groups: rank and finite index subgroups
Gilbert Levitt
A generalized Baumslag-Solitar (GBS) group is a finitely generated group acting on a tree with infinite cyclic edge and vertex stabilizers. We show how to determine effectively the…