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We consider the class of partially hyperbolic diffeomorphisms on a closed 3-manifold with quasi-isometric center. Under the non-wandering condition, we prove that the diffeomorphisms are accessible if there is no $su$-torus. As a…

Dynamical Systems · Mathematics 2024-11-19 Ziqiang Feng

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

We prove that every $C^2$ conservative partially hyperbolic diffeomorphism of a closed 3-manifold without periodic points is ergodic, which gives an affirmative answer to the Ergodicity Conjecture by Hertz-Hertz-Ures in the absence of…

Dynamical Systems · Mathematics 2025-04-07 Ziqiang Feng , Raúl Ures

This paper shows any non-Anosov partially hyperbolic diffeomorphism on the 3-torus which is homotopic to Anosov must be accessible.

Dynamical Systems · Mathematics 2020-08-28 Andy Hammerlindl , Yi Shi

We consider classes of partially hyperbolic diffeomorphism $f:M\to M$ with splitting $TM=E^s\oplus E^c\oplus E^u$ and $\dim E^c=2$. These classes include for instance (perturbations of) the product of Anosov and conservative surface…

Dynamical Systems · Mathematics 2016-03-02 Vanderlei Horita , Martin Sambarino

Stable accessibility for partially hyperbolic diffeomorphisms is central to their ergodic theory, and we establish its \(C^1\)-density among 1. all, 2. volume-preserving, 3. symplectic, and 4. contact partially hyperbolic flows. As…

Dynamical Systems · Mathematics 2023-06-22 Todd Fisher , Boris Hasselblatt

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 prove that any $C^{1+\alpha}$ transitive conservative partially hyperbolic diffeomorphism of a closed 3-manifold with virtually solvable fundamental group is ergodic. Consequently, in light of \cite{FP-classify}, this establishes the…

Dynamical Systems · Mathematics 2026-01-01 Ziqiang Feng

Let $M$ be a closed 3-manifold which admits an Anosov flow. In this paper we develop a technique for constructing partially hyperbolic representatives in many mapping classes of $M$. We apply this technique both in the setting of geodesic…

Dynamical Systems · Mathematics 2020-11-18 Christian Bonatti , Andrey Gogolev , Andy Hammerlindl , Rafael Potrie

A classification of partially hyperbolic diffeomorphisms on 3-dimensional manifolds with (virtually) solvable fundamental group is obtained. If such a diffeomorphism does not admit a periodic attracting or repelling two-dimensional torus,…

Dynamical Systems · Mathematics 2015-06-12 Andy Hammerlindl , Rafael Potrie

We give a complete topological classification of transitive partially hyperbolic diffeomorphisms in 3-manifolds in terms of Anosov flows, completing a program proposed by Pujals. In particular, this also allows to give a full answer to the…

Dynamical Systems · Mathematics 2025-10-20 S. R. Fenley , R. Potrie

We show that certain types of the three-legged accessibility property of a partially hyperbolic diffeomorphism imply the existence of a unique minimal set for one strong foliation and the transitivity of the other one. In case the center…

Dynamical Systems · Mathematics 2018-05-14 Jana Rodriguez Hertz , Raúl Ures

We study conservative partially hyperbolic diffeomorphisms in hyperbolic 3-manifolds. We show that they are always accessible and deduce as a result that every conservative $C^{1+}$ partially hyperbolic in a hyperbolic 3-manifold must be…

Dynamical Systems · Mathematics 2022-03-07 Sergio Fenley , Rafael Potrie

We study the ergodicity of partially hyperbolic endomorphisms, focusing on skew products where the base dynamics are governed by Anosov endomorphisms. For this family, we establish ergodicity and prove that accessibility holds for an open…

Dynamical Systems · Mathematics 2025-02-26 Fernando Micena , Raúl Ures

Pugh and Shub have conjectured that essential accessibility implies ergodicity, for a $C^2$, partially hyperbolic, volume-preserving diffeomorphism. We prove this conjecture under a mild center bunching assumption, which is satsified by all…

Dynamical Systems · Mathematics 2007-05-23 Keith Burns , Amie Wilkinson

We prove that for volume preserving, partially hyperbolic, center bunched endomorphisms with constant Jacobian, essential accessibility implies ergodicity.

Dynamical Systems · Mathematics 2025-05-12 Andy Hammerlindl , Audrey Tyler

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 answer a question of Burns and Wilkinson, showing that there are open families of volume-preserving partially hyperbolic diffeomorphisms which are accessible and center bunched and neither dynamically coherent nor Anosov. We also show in…

Dynamical Systems · Mathematics 2014-11-03 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

In this work we deal with partially hyperbolic diffeomorphisms whose central direction is two dimensional. We prove that in general the accessibility classes are immersed manifolds. If, furthermore, the diffeomorphism is dynamically…

Dynamical Systems · Mathematics 2020-03-18 Jana Rodriguez-Hertz , Carlos H. Vásquez
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