On the Ergodicity of Rotation Extensions of Hyperbolic Endomorphisms

Fuente: arXiv
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Main Authors: Micena, Fernando, Ures, Raúl
Format: Preprint
Published: 2025
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author Micena, Fernando
Ures, Raúl
author_facet Micena, Fernando
Ures, Raúl
contents 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 and dense subset. By analyzing the topological implications of accessibility, we demonstrate that conservative accessible partially hyperbolic endomorphisms are topologically transitive. Leveraging accessibility, we further show ergodicity for skew products with $\mathbb{S}^1$-fibers. Finally, although out the context of rotation extensions, we prove ergodic stability results for partially hyperbolic endomorphisms with $\dim(E^c) = 1.$
format Preprint
id arxiv_https___arxiv_org_abs_2502_18146
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle On the Ergodicity of Rotation Extensions of Hyperbolic Endomorphisms
Micena, Fernando
Ures, Raúl
Dynamical Systems
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 and dense subset. By analyzing the topological implications of accessibility, we demonstrate that conservative accessible partially hyperbolic endomorphisms are topologically transitive. Leveraging accessibility, we further show ergodicity for skew products with $\mathbb{S}^1$-fibers. Finally, although out the context of rotation extensions, we prove ergodic stability results for partially hyperbolic endomorphisms with $\dim(E^c) = 1.$
title On the Ergodicity of Rotation Extensions of Hyperbolic Endomorphisms
topic Dynamical Systems
url https://arxiv.org/abs/2502.18146