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We obtain sufficient conditions for the existence of physical/SRB measures for asymptotically sectionally hyperbolic attracting sets with any finite co-dimension, extending the co-dimension two case. We provide examples of such attractors,…

Dynamical Systems · Mathematics 2025-11-25 Vitor Araujo , Luciana Salgado

We prove that a partially hyperbolic attractor for a $C^1$ vector field with two dimensional center supports an SRB measure. In addition, we show that if the vector field is $C^2$, and the center bundle admits the sectional expanding…

Dynamical Systems · Mathematics 2020-07-10 Zeya Mi , Biao You , Yuntao Zang

We show that a sectional-hyperbolic attracting set for a H\"older-$C^1$ vector field admits finitely many physical/SRB measures whose ergodic basins cover Lebesgue almost all points of the basin of topological attraction. In addition, these…

Dynamical Systems · Mathematics 2021-09-07 Vitor Araujo

It is known that sectional-hyperbolic attracting sets, for a $C^2$ flow on a finite dimensional compact manifold, have at most finitely many ergodic physical invariant probability measures. We prove an upper bound for the number of distinct…

Dynamical Systems · Mathematics 2023-04-25 Vitor Araujo

We consider partially hyperbolic \( C^{1+} \) diffeomorphisms of compact Riemannian manifolds of arbitrary dimension which admit a partially hyperbolic tangent bundle decomposition \( E^s\oplus E^{cu} \). Assuming the existence of a set of…

Dynamical Systems · Mathematics 2015-12-18 Jose F. Alves , C. L. Dias , S. Luzzatto , V. Pinheiro

In this paper, we study the existence of SRB measures and their properties for infinite dimensional dynamical systems in a Hilbert space. We show several results including (i) if the system has a partially hyperbolic attractor with…

Dynamical Systems · Mathematics 2015-08-14 Zeng Lian , Peidong Liu , Kening Lu

In the present paper we contribute to the thermodynamic formalism of partially hyperbolic attractors for local diffeomorphisms admitting an invariant stable bundle and a positively invariant cone field with non-uniform cone expansion at a…

Dynamical Systems · Mathematics 2018-10-08 Anderson Cruz , Paulo Varandas

We consider dynamical systems generated by partially hyperbolic surface endomorphisms of class C^r with one-dimensional strongly unstable subbundle. As the main result, we prove that such a dynamical system generically admits finitely many…

Dynamical Systems · Mathematics 2007-05-23 Masato Tsujii

For a partially hyperbolic attractor with a center bundle splitting in a dominatedway into one-dimensional subbundles we show that for Lebesgue almost every point there is anempirical measure from $x$ with a SRB component. Moreover if the…

Dynamical Systems · Mathematics 2024-03-19 David Burguet

We introduce the notion of \emph{mostly nonuniform sectional expanding} (MNUSE) for singular flows which encompasses the notions of sectional hyperbolicity, asymptotically sectional and multisingular hyperbolicity. We exhibit an example of…

Dynamical Systems · Mathematics 2026-05-08 Vitor Araújo , Luciana Salgado

We consider partially hyperbolic attractors for non-singular endomorphisms admitting an invariant stable bundle and a positively invariant cone field with non-uniform cone expansion at a positive Lebesgue measure set of points. We prove…

Dynamical Systems · Mathematics 2018-10-08 Anderson Cruz , Giovane Ferreira , Paulo Varandas

We study ergodic properties of partially hyperbolic systems whose central direction is mostly contracting. Earlier work of Bonatti, Viana about existence and finitude of physical measures is extended to the case of local diffeomorphisms.…

Dynamical Systems · Mathematics 2008-10-14 Martin Andersson

In this paper, we study the limit measures of the empirical measures of Lebesgue almost every point in the basin of a partially hyperbolic attractor. They are strongly related to a notion named Gibbs u-state, which can be defined in a large…

Dynamical Systems · Mathematics 2018-12-24 Sylvain Crovisier , Dawei Yang , Jinhua Zhang

We extend results on robust exponential mixing for geometric Lorenz attractors, with a dense orbit and a unique singularity, to singular-hyperbolic attracting sets with any number of (either Lorenz- or non-Lorenz-like) singularities and…

Dynamical Systems · Mathematics 2023-02-06 Vitor Araujo , Edvan Trindade

In this work, we study ergodic properties of certain partially hyperbolic attractors whose central direction has a neutral behavior, the main feature is a condition of transversality between unstable leaves when projected by the stable…

Dynamical Systems · Mathematics 2022-05-12 Ricardo T. Bortolotti

We describe some recent results on the dynamics of singular-hyperbolic (or Lorenz-like) attractors: attractors in this class are expansive and so sensitive with respect to initial data; they admit a unique physical measure whose support is…

Dynamical Systems · Mathematics 2010-08-31 Vitor Araujo , Maria Jose Pacifico

We prove that a singular-hyperbolic attractor of a 3-dimensional flow is chaotic, in two strong different senses. Firstly, the flow is expansive: if two points remain close for all times, possibly with time reparametrization, then their…

Dynamical Systems · Mathematics 2009-01-24 Vitor Araujo , Maria Jose Pacifico , Enrique Pujals , Marcelo Viana

It is known that nonuniformly hyperbolic maps admitting singularities have at most countably many ergodic Sinai-Ruelle-Bowen (SRB) measures. These maps include the Belykh attractor, the geometric Lorenz attractor, and more general…

Dynamical Systems · Mathematics 2021-12-10 Dominic Veconi

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

In this paper we obtain $C^2$-open sets of dissipative, partially hyperbolic skew products having a unique SRB measure with full support and full basin. These partially hyperbolic systems have a two dimensional center bundle which presents…

Dynamical Systems · Mathematics 2023-05-24 Davi Obata
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