D. Tsipa

collaborators

2 papers

math.GR2025

The intersections of the lower central series and the subgroups of finite p-index of Generalized Baumslag-Solitar tree groups

V. Metaftsis, D. Tsipa

For a Generalized Baumslag-Solitar group $G$ with underling graph a tree, we calculate the intersection $γ_{ω} (G)$ of the lower central series and the intersection $(N_{p})_{ω} (G)$ of…

math.GR2025

The intersection of the subgroups of finite $p$ -index in a multiple HNN-extension of an infinite cyclic group

V. Metaftsis, D. Tsipa

Let $G$ be a multiple HNN-extension of an infinite cyclic group. We will calculate the intersection $(N_{p})_{ω} (G)$ of the normal subgroups of finite $p$ -index in $G$ thus general…

The intersections of the lower central series and the subgroups of finite p-index of Generalized Baumslag-Solitar tree groups

The intersection of the subgroups of finite p-index in a multiple HNN-extension of an infinite cyclic group

The intersection of the subgroups of finite $p$ -index in a multiple HNN-extension of an infinite cyclic group