3 papers
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.RA2025
On -Clean Group Rings over SLC-groups
Kisnney Emiliano de Almeida, Jacqueline Costa Cintra, Mauricio Araujo Ferreira +1
The property of -cleanness in group rings has been studied for some groups considering the classical involution, given by . A group is called an SLC-group if its quo…
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…