3 papers
math.DS2025
Radius-zero Extended Symmetries and Irregular Fibres of -Substitution Subshifts
Álvaro Bustos-Gajardo, Daniel Luz, Neil Mañibo
In this work, we consider -shifts generated by digit substitutions. For such a shift , we study the elements of the normaliser of in the gr…
math.DS2025
Extensibility and denseness of periodic semigroup actions
Raimundo Briceño, Álvaro Bustos-Gajardo, Miguel Donoso-Echenique
We study periodic points and finitely supported invariant measures for continuous semigroup actions. Introducing suitable notions of periodicity in both topological and measure-the…
math.DS2022
Torsion-free -adic shifts and their spectrum
Álvaro Bustos-Gajardo, Neil Mañibo, Reem Yassawi
In this work we study -adic shifts generated by sequences of morphisms that are constant-length. We call a sequence of constant-length morphisms torsion-free if any prime diviso…