Advances on Stable Ergodicity of Toral Automorphisms

Fuente: arXiv
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Main Authors: Argentieri, Fernando, Ulliana, Andrea
Format: Preprint
Published: 2026
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author Argentieri, Fernando
Ulliana, Andrea
author_facet Argentieri, Fernando
Ulliana, Andrea
contents We prove that all ergodic automorphisms of the $N$-dimensional torus with two dimensional center are stably ergodic. This includes all ergodic automorphisms in dimension $N\leq 5$ or $N=7$. This generalizes a previous result of Rodriguez-Hertz, that required an additional algebraic condition on the carachteristic polynomial of the linear automorphism. The core of the proof is a minimality criterion.
format Preprint
id arxiv_https___arxiv_org_abs_2603_23778
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle Advances on Stable Ergodicity of Toral Automorphisms
Argentieri, Fernando
Ulliana, Andrea
Dynamical Systems
We prove that all ergodic automorphisms of the $N$-dimensional torus with two dimensional center are stably ergodic. This includes all ergodic automorphisms in dimension $N\leq 5$ or $N=7$. This generalizes a previous result of Rodriguez-Hertz, that required an additional algebraic condition on the carachteristic polynomial of the linear automorphism. The core of the proof is a minimality criterion.
title Advances on Stable Ergodicity of Toral Automorphisms
topic Dynamical Systems
url https://arxiv.org/abs/2603.23778