When Periodicity Fails to Guarantee the Existence of Rotation: A Counterexample on $\mathbb{T}^3$

Fuente: arXiv
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Autore principale: Oukil, Walid
Natura: Preprint
Pubblicazione: 2025
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author Oukil, Walid
author_facet Oukil, Walid
contents In this manuscript, we construct an explicit counterexample of a smooth \(C^{\infty}\), periodic dynamical system on the torus \(\mathbb{T}^3\) for which the rotation vector exists in a weak sense, but fails to exist in the strong sense of bounded deviation (also referred to as {\it {frequencies}} in parts of the physics and biology literature). The construction exploits Liouville-type arithmetic properties and demonstrates that smoothness and periodicity alone do not ensure bounded deviation, even within the class of integrable systems.
format Preprint
id arxiv_https___arxiv_org_abs_2504_21006
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle When Periodicity Fails to Guarantee the Existence of Rotation: A Counterexample on $\mathbb{T}^3$
Oukil, Walid
Dynamical Systems
34D05, 37B65, 34C15
In this manuscript, we construct an explicit counterexample of a smooth \(C^{\infty}\), periodic dynamical system on the torus \(\mathbb{T}^3\) for which the rotation vector exists in a weak sense, but fails to exist in the strong sense of bounded deviation (also referred to as {\it {frequencies}} in parts of the physics and biology literature). The construction exploits Liouville-type arithmetic properties and demonstrates that smoothness and periodicity alone do not ensure bounded deviation, even within the class of integrable systems.
title When Periodicity Fails to Guarantee the Existence of Rotation: A Counterexample on $\mathbb{T}^3$
topic Dynamical Systems
34D05, 37B65, 34C15
url https://arxiv.org/abs/2504.21006