Kevin Li

collaborators

3 papers

math.GR2026

Finiteness properties and quasi-isometry of group pairs

Kevin Li, Luis Jorge SÃ¡nchez SaldaÃ±a

We show that the geometric and homological finiteness properties of group pairs are invariant under a suitable notion of quasi-isometry for group pairs.

math.GR2025

A note on higher coherence of graphs of groups

Kevin Li, Luis Jorge SÃ¡nchez SaldaÃ±a

For $n \in N$ , a group is called $n$ -coherent if every subgroup of type $F_{n}$ is of type $F_{n + 1}$ . For $n \geq 1$ , we observe that graphs of groups with $n…

math.GR2025

A note on finiteness properties of vertex stabilisers

Kevin Li, Luis Jorge SÃ¡nchez SaldaÃ±a

We prove a criterion for the geometric and algebraic finiteness properties of vertex stabilisers of $G$ -CW-complexes, given the finiteness properties of the group $G$ and of the st…