Stability properties for subgroups generated by return words

Fuente: arXiv
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Autores principales: Gheeraert, France, Goulet-Ouellet, Herman, Leroy, Julien, Stas, Pierre
Formato: Preprint
Publicado: 2024
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author Gheeraert, France
Goulet-Ouellet, Herman
Leroy, Julien
Stas, Pierre
author_facet Gheeraert, France
Goulet-Ouellet, Herman
Leroy, Julien
Stas, Pierre
contents Return words are a classical tool for studying shift spaces with low factor complexity. In recent years, their projection inside groups have attracted some attention, for instance in the context of dendric shift spaces, of generation of pseudorandom numbers (through the welldoc property), and of profinite invariants of shift spaces. Aiming at unifying disparate works, we introduce a notion of stability for subgroups generated by return words. Within this framework, we revisit several existing results and generalize some of them. We also study general aspects of stability, such as decidability or closure under certain operations.
format Preprint
id arxiv_https___arxiv_org_abs_2410_12534
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Stability properties for subgroups generated by return words
Gheeraert, France
Goulet-Ouellet, Herman
Leroy, Julien
Stas, Pierre
Discrete Mathematics
Combinatorics
Dynamical Systems
Group Theory
37B10 (Primary) 68R15 (Secondary)
Return words are a classical tool for studying shift spaces with low factor complexity. In recent years, their projection inside groups have attracted some attention, for instance in the context of dendric shift spaces, of generation of pseudorandom numbers (through the welldoc property), and of profinite invariants of shift spaces. Aiming at unifying disparate works, we introduce a notion of stability for subgroups generated by return words. Within this framework, we revisit several existing results and generalize some of them. We also study general aspects of stability, such as decidability or closure under certain operations.
title Stability properties for subgroups generated by return words
topic Discrete Mathematics
Combinatorics
Dynamical Systems
Group Theory
37B10 (Primary) 68R15 (Secondary)
url https://arxiv.org/abs/2410.12534