2 papers
math.DS2025
Profinite approach to S-adic shift spaces I: Saturating directive sequences
Jorge Almeida, Alfredo Costa, Herman Goulet-Ouellet
This paper is the first in a series of three, about (relatively)free profinite semigroups and S-adic representations of minimal shift spaces. We associate to each primitive S-adic…
math.GR2025
Open multiplication in relatively free profinite semigroupoids
Jorge Almeida, Alfredo Costa, Herman Goulet-Ouellet
The purpose of this paper is to extend some useful results, such as the multiplication being open, previously known for suitable finitely generated relatively free profinite semigr…