Recent progress on pointwise normality of self-similar measures

Fuente: arXiv
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Main Author: Algom, Amir
Format: Preprint
Published: 2025
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author Algom, Amir
author_facet Algom, Amir
contents This article is an exposition of recent results and methods on the prevalence of normal numbers in the support of self-similar measures on the line. We also provide an essentially self-contained proof of a recent Theorem that the Rajchman property (decay of the Fourier transform) implies that typical elements in the support of the measure are normal to all bases; as no decay rate is required, this improves the classical criterion of Davenport, Erdos, and LeVeque (1964). Open problems regarding effective equidistribution, non-integer bases, and higher order correlations, are discussed.
format Preprint
id arxiv_https___arxiv_org_abs_2504_18192
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Recent progress on pointwise normality of self-similar measures
Algom, Amir
Dynamical Systems
Classical Analysis and ODEs
Number Theory
This article is an exposition of recent results and methods on the prevalence of normal numbers in the support of self-similar measures on the line. We also provide an essentially self-contained proof of a recent Theorem that the Rajchman property (decay of the Fourier transform) implies that typical elements in the support of the measure are normal to all bases; as no decay rate is required, this improves the classical criterion of Davenport, Erdos, and LeVeque (1964). Open problems regarding effective equidistribution, non-integer bases, and higher order correlations, are discussed.
title Recent progress on pointwise normality of self-similar measures
topic Dynamical Systems
Classical Analysis and ODEs
Number Theory
url https://arxiv.org/abs/2504.18192