English

Conjugacies of Expanding Skew Products on $\mathbb{T}^n$

Dynamical Systems 2025-05-15 v1

Abstract

We show that any equilibrium state for a H\"older potential on the model map xdxmodZn\vec{x} \mapsto d \cdot \vec{x} \mod \mathbb{Z}^n on Tn\mathbb{T}^n is conjugate to Lebesgue measure for an invariant expanding skew product of degree dd. This is a generalization of a result of McMullen to higher dimensions for equilibrium states. We use an approach developed by the author using a family of nonstationary transfer operators for an expanding skew product. We also apply a Markov partition argument to classify invariant probability measures for expanding maps on Tn\mathbb{T}^n.

Keywords

Cite

@article{arxiv.2505.09575,
  title  = {Conjugacies of Expanding Skew Products on $\mathbb{T}^n$},
  author = {Gregory Hemenway},
  journal= {arXiv preprint arXiv:2505.09575},
  year   = {2025}
}

Comments

14 pages, 4 figures