Mathieu Sablik

collaborators

2 papers

math.GR2025

A geometric obstruction to self-simulation for groups

Sebastián Barbieri, Kanéda Blot, Mathieu Sablik +1

We introduce a new quasi-isometry invariant for finitely generated groups and show that every group with this property admits a subshift which is effectively closed by patterns and…

math.DS2023

Soficity of free extensions of effective subshifts

Sebastián Barbieri, Mathieu Sablik, Ville Salo

Let $G$ be a group and $H ⩽ G$ a subgroup. The free extension of an $H$ -subshift $X$ to $G$ is the $G$ -subshift $X$ whose configurations are those for which the…