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We show that every codimension one partially hyperbolic diffeomorphism must support on $\mathbb{T}^{n}$. It is locally uniquely integrable and derived from a linear codimension one Anosov diffeomorphism. Moreover, this system is…

Dynamical Systems · Mathematics 2022-11-03 Xiang Zhang

We consider the set of points with high pointwise emergence for $C^{1+\alpha}$ diffeomorphisms preserving a hyperbolic measure. We find a lower bound on the Hausdorff dimension of this set in terms of unstable Hausdorff dimension of the…

Dynamical Systems · Mathematics 2025-09-17 Agnieszka Zelerowicz

We prove a $C^1$ version of a conjecture by Pugh and Shub: among partially hyperbolic volume-preserving $C^r$ diffeomorphisms, $r>1$, the stably ergodic ones are $C^1$-dense. To establish these results, we develop new perturbation tools for…

Dynamical Systems · Mathematics 2017-09-18 A. Avila , S. Crovisier , A. Wilkinson

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

In this paper we investigate the relation between measure expansiveness and hyperbolicity. We prove that non atomic invariant ergodic measures with all of its Lyapunov exponents positive is positively measure-expansive. We also prove that…

Dynamical Systems · Mathematics 2017-11-28 Alma Armijo , Maria Jose Pacifico

We study generic volume-preserving diffeomorphisms on compact manifolds. We show that the following property holds generically in the $C^1$ topology: Either there is at least one zero Lyapunov exponent at almost every point, or the set of…

Dynamical Systems · Mathematics 2010-05-05 Artur Avila , Jairo Bochi

In this paper, we establish a new quasi-shadowing property for any nonuiformly partially hyperbolic set of a $C^{1+\alpha}$ diffeomorphism, which is adaptive to the movement of the pseudo-orbit. Moreover, the quasi-specification property…

Dynamical Systems · Mathematics 2025-01-07 Gang Liao , Xuetong Zu

This paper gives a complete classification of the possible ergodic decompositions for certain open families of volume-preserving partially hyperbolic diffeomorphisms. These families include systems with compact center leaves and…

Dynamical Systems · Mathematics 2021-03-10 Andy Hammerlindl

A classical construction due to Newhouse creates horseshoes from hyperbolic periodic orbits with large period and weak domination through local $C^1$-perturbations. Our main theorem shows that, when one works in the $C^1$ topology, the…

Dynamical Systems · Mathematics 2017-11-07 Jerome Buzzi , Sylvain Crovisier , Todd Fisher

We analyze a class of deformations of Anosov diffeomorphisms: these $C^0$-small, but $C^1$-macroscopic deformations break the topological conjugacy class but leave the high entropy dynamics unchanged. More precisely, there is a partial…

Dynamical Systems · Mathematics 2011-03-15 Jerome Buzzi , Todd Fisher

We prove the topological entropy remains constant inside the class of partially hyperbolic diffeomorphisms of $\mathbb{T}^d$ with simple central bundle (that is, when it decomposes into one dimensional sub-bundles with controlled geometry)…

Dynamical Systems · Mathematics 2024-01-30 Pablo D. Carrasco , Cristina Lizana , Enrique Pujals , Carlos H. Vásquez

We study the ergodic theory of non-conservative C^1-generic diffeomorphisms. First, we show that homoclinic classes of arbitrary diffeomorphisms exhibit ergodic measures whose supports coincide with the homoclinic class. Second, we show…

Dynamical Systems · Mathematics 2008-09-22 Flavio Abdenur , Christian Bonatti , Sylvain Crovisier

We study the $C^1$-topological properties of the subset of non-uniform hyperbolic diffeomorphisms in a certain class of $C^2$ partially hyperbolic symplectic systems which have bounded $C^2$ distance to the identity. In this set, we prove…

Dynamical Systems · Mathematics 2019-11-01 Chao Liang , Karina Marin , Jiagang Yang

Assuming it preserves an orientation of its stable bundle, any three-dimensional partially hyperbolic diffeomorphism can be used to construct a four-dimensional partially hyperbolic diffeomorphism which is dynamically incoherent. Under the…

Dynamical Systems · Mathematics 2023-06-27 Andy Hammerlindl

The goal of this article is to establish several general properties of a somewhat large class of partially hyperbolic diffeomorphisms called \emph{discretized Anosov flows}. A general definition for these systems is presented and is proven…

Dynamical Systems · Mathematics 2023-06-27 Santiago Martinchich

We show the existence of large $\mathcal C^1$ open sets of area preserving endomorphisms of the two-torus which have no dominated splitting and are non-uniformly hyperbolic, meaning that Lebesgue almost every point has a positive and a…

Dynamical Systems · Mathematics 2026-01-14 Martin Andersson , Pablo D. Carrasco , Radu Saghin

We present examples of partially hyperbolic and topologically transitive local diffeomorphisms defined as skew products over a horseshoe which exhibit rich phase transitions for the topological pressure. This phase transition follows from a…

Dynamical Systems · Mathematics 2015-05-28 Lorenzo J. Díaz , Katrin Gelfert , Michał Rams

We show that any conservative partially hyperbolic diffeomorphism homotopic to the identity is accessible unless the fundamental group of its ambient 3-manifold is virtually solvable. As a consequence, such diffeomorphisms are ergodic,…

Dynamical Systems · Mathematics 2025-06-03 Ziqiang Feng , Raúl Ures

We study partially hyperbolic diffeomorphisms satisfying a trapping property which makes them look as if they were Anosov at large scale. We show that, as expected, they share several properties with Anosov diffeomorphisms. We construct an…

Dynamical Systems · Mathematics 2015-02-03 Rafael Potrie

We show that time-one maps of transitive Anosov flows of compact manifolds are accumulated by diffeomorphisms robustly satisfying the following dichotomy: either all of the measures of maximal entropy are non-hyperbolic, or there are…

Dynamical Systems · Mathematics 2020-12-09 Jérôme Buzzi , Todd Fisher , Ali Tahzibi