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Main Authors: Jamet, Damien, Marcovici, Irène, Poirier, Léo, de la Rue, Thierry
Format: Preprint
Published: 2026
Subjects:
Online Access:https://arxiv.org/abs/2604.11387
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author Jamet, Damien
Marcovici, Irène
Poirier, Léo
de la Rue, Thierry
author_facet Jamet, Damien
Marcovici, Irène
Poirier, Léo
de la Rue, Thierry
contents We provide an ergodic theory framework to study statistical properties of smooth sequences over the odd alphabet {1, 3}. The arithmetic nature of this alphabet yields a partition of the subshift of smooth sequences based on their local structure, defining a notion of type for those sequences. We describe the substitutive structure of the smaller subshifts obtained by fixing the sequence of types of the successive derivatives of smooth sequences, from which we obtain the unique ergodicity of all these subshifts. A direct consequence is that the asymptotic frequency of any finite pattern in a smooth sequence over {1, 3} is always well-defined and depends on its type sequence. Finally, we characterize the minimality of these subshifts, and propose some perspectives.
format Preprint
id arxiv_https___arxiv_org_abs_2604_11387
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Frequency of patterns in smooth sequences over the alphabet {1, 3}
Jamet, Damien
Marcovici, Irène
Poirier, Léo
de la Rue, Thierry
Dynamical Systems
We provide an ergodic theory framework to study statistical properties of smooth sequences over the odd alphabet {1, 3}. The arithmetic nature of this alphabet yields a partition of the subshift of smooth sequences based on their local structure, defining a notion of type for those sequences. We describe the substitutive structure of the smaller subshifts obtained by fixing the sequence of types of the successive derivatives of smooth sequences, from which we obtain the unique ergodicity of all these subshifts. A direct consequence is that the asymptotic frequency of any finite pattern in a smooth sequence over {1, 3} is always well-defined and depends on its type sequence. Finally, we characterize the minimality of these subshifts, and propose some perspectives.
title Frequency of patterns in smooth sequences over the alphabet {1, 3}
topic Dynamical Systems
url https://arxiv.org/abs/2604.11387