Dimensions and entropies for an expansive homeomorphism
Dynamical Systems
2025-09-09 v2
Abstract
For an expansive homeomorphism, we investigate the relationship among dimension, entropy, and Lyapunov exponents. Motivated by Young's formula for surface diffeomorphisms, which links dimension and measure-theoretic entropy with hyperbolic ergodic measures, we construct the hyperbolic metric with two distinct Lyapunov exponents . We then examine the relationships between various types of entropies (entropy, -neutralized entropy, and -estimating entropy) and dimensions. We further prove the Eckmann-Ruelle Conjecture for expansive topological dynamical systems with hyperbolic metrics. Additionally, we establish variational principles for these entropy quantities.
Cite
@article{arxiv.2502.18162,
title = {Dimensions and entropies for an expansive homeomorphism},
author = {Ercai Chen and Tassilo Küpper and Yunxiang Xie},
journal= {arXiv preprint arXiv:2502.18162},
year = {2025}
}