English

Existence of asymptotic pairs in positive entropy group actions

Dynamical Systems 2023-04-07 v3

Abstract

We provide a definition of a \prec-asymptotic pair in a topological action of a countable amenable group GG, where \prec is an order on GG of type Z\mathbb Z. We then prove that if (O~,ν,G)(\tilde{\mathcal O},\nu,G) is a multiorder on GG, then for every topological GG-action of positive entropy there exists an \prec-asympotic pair for almost every order O~\prec\,\in\tilde{\mathcal O}. This result is a generalization of the Blanchard-Host-Ruette Theorem for classical topological dynamical systems (actions of Z\mathbb Z).

Keywords

Cite

@article{arxiv.2110.01112,
  title  = {Existence of asymptotic pairs in positive entropy group actions},
  author = {Mateusz Więcek},
  journal= {arXiv preprint arXiv:2110.01112},
  year   = {2023}
}

Comments

The content of the work with necessary corrections was included in a more extensive article: Asymptotic pairs in topological actions of amenable groups (arXiv:2303.12923)