Interpolation sets for dynamical systems

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Main Authors: Koutsogiannis, Andreas, Le, Anh N., Moreira, Joel, Pavlov, Ronnie, Richter, Florian K.
Format: Preprint
Published: 2024
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author Koutsogiannis, Andreas
Le, Anh N.
Moreira, Joel
Pavlov, Ronnie
Richter, Florian K.
author_facet Koutsogiannis, Andreas
Le, Anh N.
Moreira, Joel
Pavlov, Ronnie
Richter, Florian K.
contents Originating in harmonic analysis, interpolation sets were first studied in dynamics by Glasner and Weiss in the 1980s. A set $S \subset \mathbb{N}$ is an interpolation set for a class of topological dynamical systems $\mathcal{C}$ if any bounded sequence on $S$ can be extended to a sequence that arises from a system in $\mathcal{C}$. In this paper, we provide combinatorial characterizations of interpolation sets for: $\bullet$ (totally) minimal systems; $\bullet$ topologically (weak) mixing systems; $\bullet$ strictly ergodic systems; and $\bullet$ zero entropy systems. Additionally, we prove some results on a slightly different notion, called weak interpolation sets, for several classes of systems. We also answer a question of Host, Kra, and Maass concerning the connection between sets of pointwise recurrence for distal systems and $IP$-sets.
format Preprint
id arxiv_https___arxiv_org_abs_2401_15339
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Interpolation sets for dynamical systems
Koutsogiannis, Andreas
Le, Anh N.
Moreira, Joel
Pavlov, Ronnie
Richter, Florian K.
Dynamical Systems
Primary: 37B05, Secondary: 37B10
Originating in harmonic analysis, interpolation sets were first studied in dynamics by Glasner and Weiss in the 1980s. A set $S \subset \mathbb{N}$ is an interpolation set for a class of topological dynamical systems $\mathcal{C}$ if any bounded sequence on $S$ can be extended to a sequence that arises from a system in $\mathcal{C}$. In this paper, we provide combinatorial characterizations of interpolation sets for: $\bullet$ (totally) minimal systems; $\bullet$ topologically (weak) mixing systems; $\bullet$ strictly ergodic systems; and $\bullet$ zero entropy systems. Additionally, we prove some results on a slightly different notion, called weak interpolation sets, for several classes of systems. We also answer a question of Host, Kra, and Maass concerning the connection between sets of pointwise recurrence for distal systems and $IP$-sets.
title Interpolation sets for dynamical systems
topic Dynamical Systems
Primary: 37B05, Secondary: 37B10
url https://arxiv.org/abs/2401.15339