3 papers
math.GR2025
A geometric obstruction to self-simulation for groups
Sebastián Barbieri, Sebastián Barbieri, Kanéda Blot +3
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.DS2025
Minimal sofic shift on a group that is not finitely-generated
Ville Salo
We prove that there exists a group which is not finitely generated, but admits a minimal sofic shift. This answers a question of Doucha, Melleray and Tsankov. The group is of the f…
math.DS2025
Finitary Ryan's and local entropy for subshifts
Ville Salo, Scott Schmieding
For the action of a group by homeomorphisms on a space , the automorphism group consists of all self-homeomorphisms of which commute with $x \mapsto…