Simple random walks on higher dimensional tori are mixing and not uniquely ergodic

Fuente: arXiv
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Main Author: Czudek, Klaudiusz
Format: Preprint
Published: 2024
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author Czudek, Klaudiusz
author_facet Czudek, Klaudiusz
contents It has been shown that in one dimension the environment viewed by the particle process (EVP process) in quasi periodic random environment is uniquely ergodic and mixing under mild additional assumptions. Here we construct an analytic quasi periodic environment on higher dimensional torus such that the EVP process is not uniquely ergodic. The stationary measures in this counterexample are necessarily atomless. We show also that the EVP process is mixing with respect to any ergodic stationary measure under some smoothness assumption.
format Preprint
id arxiv_https___arxiv_org_abs_2412_10790
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Simple random walks on higher dimensional tori are mixing and not uniquely ergodic
Czudek, Klaudiusz
Dynamical Systems
Probability
It has been shown that in one dimension the environment viewed by the particle process (EVP process) in quasi periodic random environment is uniquely ergodic and mixing under mild additional assumptions. Here we construct an analytic quasi periodic environment on higher dimensional torus such that the EVP process is not uniquely ergodic. The stationary measures in this counterexample are necessarily atomless. We show also that the EVP process is mixing with respect to any ergodic stationary measure under some smoothness assumption.
title Simple random walks on higher dimensional tori are mixing and not uniquely ergodic
topic Dynamical Systems
Probability
url https://arxiv.org/abs/2412.10790