Showing math.GRShow all
3 papers · 1 filter
math.GR2025
On the finiteness properties of fixed subgroups of automorphisms
Kisnney Almeida, Luis Mendonça
We use Sigma-invariants to study homotopical and homological finiteness properties of fixed subgroups of automorphisms of a group in terms of its center and the induced…
math.GR2024
Subgroup Separability of Artin Groups II
Kisnney Almeida, Igor Lima
In this paper, we establish a new criterion for determining whether an Artin group is subgroup separable (LERF), building upon a criterion introduced in a previous work. Specifical…
math.GR2023
Subgroup separability of surface braid groups and virtual braid groups
Kisnney Almeida, Igor Lima, Oscar Ocampo
In this paper, we study subgroup separability (also known as LERF) and related properties for surface braid groups and virtual (singular) braid groups.