A ratio ergodic theorem via tiling and uniformly syndetic markers

Fuente: arXiv
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Autori principali: Miller, Benjamin D., Tserunyan, Anush
Natura: Preprint
Pubblicazione: 2022
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author Miller, Benjamin D.
Tserunyan, Anush
author_facet Miller, Benjamin D.
Tserunyan, Anush
contents We prove a purely Borel/measureless version of Dowker's ratio ergodic theorem, from which we derive a strengthening of Dowker's original theorem with a precise identification of the limit of local ergodic ratios. This is done by implementing the pointwise tiling idea of [Tse18] in the more complex setting of continuum-to-one Borel transformations. Along the way, we establish a vanishing markers lemma for these transformations, which generalizes its well-known counterpart for invertible transformations.
format Preprint
id arxiv_https___arxiv_org_abs_2208_06463
institution arXiv
publishDate 2022
record_format arxiv
spellingShingle A ratio ergodic theorem via tiling and uniformly syndetic markers
Miller, Benjamin D.
Tserunyan, Anush
Dynamical Systems
Logic
03E15, 28A05, 37B05
We prove a purely Borel/measureless version of Dowker's ratio ergodic theorem, from which we derive a strengthening of Dowker's original theorem with a precise identification of the limit of local ergodic ratios. This is done by implementing the pointwise tiling idea of [Tse18] in the more complex setting of continuum-to-one Borel transformations. Along the way, we establish a vanishing markers lemma for these transformations, which generalizes its well-known counterpart for invertible transformations.
title A ratio ergodic theorem via tiling and uniformly syndetic markers
topic Dynamical Systems
Logic
03E15, 28A05, 37B05
url https://arxiv.org/abs/2208.06463