Discrete spectrum for amenable group actions

Author:

Yu Tao,Zhang Guohua,Zhang Ruifeng

Abstract

<p style='text-indent:20px;'>In this paper, we study discrete spectrum of invariant measures for countable discrete amenable group actions.</p><p style='text-indent:20px;'>We show that an invariant measure has discrete spectrum if and only if it has bounded measure complexity. We also prove that, discrete spectrum can be characterized via measure-theoretic complexity using names of a partition and the Hamming distance, and it turns out to be equivalent to both mean equicontinuity and equicontinuity in the mean.</p>

Publisher

American Institute of Mathematical Sciences (AIMS)

Subject

Applied Mathematics,Discrete Mathematics and Combinatorics,Analysis

Cited by 6 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Sequence entropy for amenable group actions*;Physica Scripta;2023-12-01

2. Measure-theoretic sequence entropy pairs and mean sensitivity;Ergodic Theory and Dynamical Systems;2023-09-19

3. Discrete spectrum for group actions;Dynamical Systems;2023-07-21

4. Dynamics of metrics in measure spaces and scaling entropy;Russian Mathematical Surveys;2023

5. Dynamics of metrics in measure spaces and scaling entropy;Uspekhi Matematicheskikh Nauk;2023

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