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We prove the existence of equilibrium states for partially hyperbolic endomorphisms with one-dimensional center bundle. We also prove, regarding a class of potentials, the uniqueness of such measures for endomorphisms defined on the 2-torus…

Dynamical Systems · Mathematics 2023-11-28 Carlos F. Álvarez , Marisa Cantarino

We prove the finiteness of ergodic measures of maximal entropy for partially hyperbolic diffeomorphisms where the center direction has a dominated decomposition into one dimensional bundle and there is a uniform lower bound for the absolute…

Dynamical Systems · Mathematics 2025-02-27 Juan Carlos Mongez , Maria José Pacifico , Mauricio Poletti

We consider partially hyperbolic diffeomorphisms $f$ with a one-dimensional central direction such that the unstable entropy exceeds the stable entropy. Our main result proves that such maps have a finite number of ergodic measures of…

Dynamical Systems · Mathematics 2024-05-09 Juan Carlos Mongez , Maria Jose Pacifico

We address the problem of existence and uniqueness (finite- ness) of ergodic equilibrium states for a natural class of partially hyperbolic dynamics homotopic to Anosov. We propose to study the disintegration of equilibrium states along…

Dynamical Systems · Mathematics 2016-04-26 Jorge Crisostomo , Ali Tahzibi

In this paper, the equilibrium states for a non-degenerate $ C^2 $ partially hyperbolic endomorphism $f$ on a closed Riemannian manifold $M$ with one-dimensional center bundle are investigated. Applying the criterion of Climenhaga-Thompson…

Dynamical Systems · Mathematics 2025-12-18 Yifan Zhang , Yujun Zhu

In this article we study the regularity of the topological and metric entropy of partially hyperbolic flows with two-dimensional center direction. We show that the topological entropy is upper semicontinuous with respect to the flow, and we…

Dynamical Systems · Mathematics 2018-11-05 Mario Roldán , Radu Saghin , Jiagang Yang

We study the amount of nonhyperbolicity within a broad class of (nonhyperbolic) partially hyperbolic diffeomorphisms with a one-dimensional center. For that, we focus on the center Lyapunov exponent and the entropy of its level sets. We…

Dynamical Systems · Mathematics 2024-05-21 Lorenzo J. Díaz , Katrin Gelfert , Jinhua Zhang

We prove robustness and uniqueness of equilibrium states for a class of partially hyperbolic diffeomorphisms with dominated splittings and H\"older continuous potentials with not very large oscillation.

Dynamical Systems · Mathematics 2025-09-03 Qiao Liu , Jianxiang Liao

In this work we address the problem of existence and uniqueness (finiteness) of ergodic equilibrium states for partially hyperbolic diffeomorphisms isotopic to Anosov on $\mathbb{T}^4$, with 2-dimensional center foliation. To do so we…

Dynamical Systems · Mathematics 2021-08-11 Carlos F. Álvarez , Adriana Sánchez , Régis Varão

In this paper, we consider certain partially hyperbolic diffeomorphisms with center of arbitrary dimension and obtain continuity properties of the topological entropy under $C^1$ perturbations. The systems considered have subexponential…

Dynamical Systems · Mathematics 2022-06-22 Weisheng Wu

For $C^{1+}$ maps, possibly non-invertible and with singularities, we prove that each homoclinic class of an ergodic adapted hyperbolic measure carries at most one adapted hyperbolic measure of maximal entropy. We then apply this to study…

Dynamical Systems · Mathematics 2025-12-30 Yuri Lima , Davi Obata , Mauricio Poletti

We consider partially hyperbolic diffeomorphisms on compact manifolds where the unstable and stable foliations stably carry some unique non-trivial homologies. We prove the following two results: if the center foliation is one dimensional,…

Dynamical Systems · Mathematics 2011-02-19 Yongxia Hua , Radu Saghin , Zhihong Xia

We study nonhyperbolic and transitive partially hyperbolic diffeomorphisms having a one-dimensional center. We prove joint flexibility with respect to entropy and center Lyapunov exponent for a broad class of these systems. Flexibility…

Dynamical Systems · Mathematics 2025-05-07 Lorenzo J. Díaz , Katrin Gelfert , Michal Rams , Jinhua Zhang

In this paper, we study physical measures for partially hyperbolic diffeomorphisms with multi one-dimensional centers under the condition that all Gibbs $u$-states are hyperbolic. We prove the finiteness of ergodic physical measures. Then…

Dynamical Systems · Mathematics 2023-10-05 Zeya Mi , Yongluo Cao

We construct measures of maximal $u$-entropy for any partially hyperbolic diffeomorphism that factors over an Anosov torus automorphism and has mostly contracting center direction. The space of such measures has a finite dimension, and its…

Dynamical Systems · Mathematics 2020-11-06 Raul Ures , Marcelo Viana , Fan Yang , Jiagang Yang

We study the partially hyperbolic diffeomorphims whose center direction admits the u-definite property in the sense that all the central Lyapunov exponents of each ergodic Gibbs u-state are either all positive or all negative. We prove that…

Dynamical Systems · Mathematics 2023-08-17 Zeya Mi , Yongluo Cao

A deep analysis of the Lyapunov exponents, for stationary sequence of matrices going back to Furstenberg, for more general linear cocycles by Ledrappier and generalized to the context of non-linear cocycles by Avila and Viana, gives an…

Dynamical Systems · Mathematics 2017-05-16 Ali Tahzibi , Jiagang Yang

In this work we obtain a new criterion to establish ergodicity and non-uniform hyperbolicity of smooth measures of diffeomorphisms. This method allows us to give a more accurate description of certain ergodic components. The use of this…

Dynamical Systems · Mathematics 2019-12-19 F. Rodriguez Hertz , Jana Rodriguez Hertz , A. Tahzibi , R. Ures

The aim of this work is to study a kind of refinement of the entropy conjecture, in the context of partially hyperbolic diffeomorphisms with one dimensional central direction, of d-dimensional torus. We start by establishing a connection…

Dynamical Systems · Mathematics 2014-07-22 Mario Roldán

We prove the hyperbolicity of ergodic maximal entropy measures for a class of partially hyperbolic diffeomorphisms of $\mathbb{T}^{d}$, which have a compact two-dimensional center foliation.

Dynamical Systems · Mathematics 2023-06-21 Carlos F. Álvarez
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