English

Semicocycle discontinuities for substitutions and reverse-reading automata

Dynamical Systems 2023-03-15 v2

Abstract

In this article we define the semigroup associated to a substitution. We use it to construct a minimal automaton which generates a substitution sequence u in reverse reading. We show, in the case where the substitution has a coincidence, that this automaton completely describes the semicocycle discontinuities of u.

Keywords

Cite

@article{arxiv.2211.01843,
  title  = {Semicocycle discontinuities for substitutions and reverse-reading automata},
  author = {Gandhar Joshi and Reem Yassawi},
  journal= {arXiv preprint arXiv:2211.01843},
  year   = {2023}
}

Comments

17 pages, 2 figures. This second version is re-written and improved