Thermodynamic formalism for non-uniform systems with controlled specification and entropy expansiveness

Fuente: arXiv
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Auteurs principaux: Wang, Tianyu, Wu, Weisheng
Format: Preprint
Publié: 2025
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author Wang, Tianyu
Wu, Weisheng
author_facet Wang, Tianyu
Wu, Weisheng
contents We study thermodynamic formalism of dynamical systems with non-uniform structure. Precisely, we obtain the uniqueness of equilibrium states for a family of non-uniformly expansive flows by generalizing Climenhaga-Thompson's orbit decomposition criteria. In particular, such family includes entropy expansive flows. Meanwhile, the essential part of the decomposition is allowed to satisfy an even weaker version of specification, namely controlled specification, thus also extends the corresponding results by Pavlov. Two applications of our abstract theorems are explored. Firstly, we introduce a notion of regularity condition called weak Walters condition, and study the uniqueness of measure of maximal entropy for a suspension flow with roof function satisfying such condition. Secondly, we investigate topologically transitive frame flows on rank one manifolds of nonpositive curvature, which is a group extension of nonuniformly hyperbolic flows. Under a bunched curvature condition and running a Gauss-Bonnet type of argument, we show the uniqueness of equilibrium states with respect to certain potentials.
format Preprint
id arxiv_https___arxiv_org_abs_2504_12706
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Thermodynamic formalism for non-uniform systems with controlled specification and entropy expansiveness
Wang, Tianyu
Wu, Weisheng
Dynamical Systems
We study thermodynamic formalism of dynamical systems with non-uniform structure. Precisely, we obtain the uniqueness of equilibrium states for a family of non-uniformly expansive flows by generalizing Climenhaga-Thompson's orbit decomposition criteria. In particular, such family includes entropy expansive flows. Meanwhile, the essential part of the decomposition is allowed to satisfy an even weaker version of specification, namely controlled specification, thus also extends the corresponding results by Pavlov. Two applications of our abstract theorems are explored. Firstly, we introduce a notion of regularity condition called weak Walters condition, and study the uniqueness of measure of maximal entropy for a suspension flow with roof function satisfying such condition. Secondly, we investigate topologically transitive frame flows on rank one manifolds of nonpositive curvature, which is a group extension of nonuniformly hyperbolic flows. Under a bunched curvature condition and running a Gauss-Bonnet type of argument, we show the uniqueness of equilibrium states with respect to certain potentials.
title Thermodynamic formalism for non-uniform systems with controlled specification and entropy expansiveness
topic Dynamical Systems
url https://arxiv.org/abs/2504.12706