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Bibliographic Details
Main Authors: Huang, Wen, Shao, Song, Ye, Xiangdong
Format: Preprint
Published: 2024
Subjects:
Online Access:https://arxiv.org/abs/2407.10728
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Table of Contents:
  • It is shown that there exist a probability space $(X,{\mathcal X},μ)$, two ergodic measure preserving transformations $T,S$ acting on $(X,{\mathcal X},μ)$ with $h_μ(X,T)=h_μ(X,S)=0$, and $f, g \in L^\infty(X,μ)$ such that the limit \begin{equation*} \lim_{N\to\infty}\frac{1}{N}\sum_{n=0}^{N-1} f(T^{n}x)g(S^{n}x) \end{equation*} does not exist in $L^2(X,μ)$.