English

On the pointwise entangled ergodic theorem

Dynamical Systems 2019-03-05 v4 Functional Analysis

Abstract

We present some twisted compactness conditions for almost everywhere convergence of one-parameter entangled ergodic averages of Dunford-Schwartz operators T0,,TaT_0,\ldots, T_a on a Borel probability space of the form n=1NTanAa1Ta1nAa1A0T0nf \sum_{n=1}^N T_a^n A_{a-1}T_{a-1}^nA_{a-1}\cdot \ldots \cdot A_0 T_0^nf for fLp(X,μ)f\in L^p(X,\mu), p1p\geq 1. We also discuss examples and present a continuous version of the result.

Keywords

Cite

@article{arxiv.1509.05554,
  title  = {On the pointwise entangled ergodic theorem},
  author = {Tanja Eisner and Dávid Kunszenti-Kovács},
  journal= {arXiv preprint arXiv:1509.05554},
  year   = {2019}
}

Comments

18 pages, minor changes of the revised version incorporating referee's suggestions, where the results are formulated and proved for Dunford-Schwartz operators instead of Koopman operators

R2 v1 2026-06-22T10:59:37.929Z