Favard length and quantitative rectifiability

Fuente: arXiv
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Main Author: Dąbrowski, Damian
Format: Preprint
Published: 2024
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author Dąbrowski, Damian
author_facet Dąbrowski, Damian
contents The Favard length of a Borel set $E\subset\mathbb{R}^2$ is the average length of its orthogonal projections. We prove that if $E$ is Ahlfors 1-regular and it has large Favard length, then it contains a big piece of a Lipschitz graph. This gives a quantitative version of the Besicovitch projection theorem. As a corollary, we answer questions of David and Semmes and of Peres and Solomyak. We also make progress on Vitushkin's conjecture.
format Preprint
id arxiv_https___arxiv_org_abs_2408_03919
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Favard length and quantitative rectifiability
Dąbrowski, Damian
Classical Analysis and ODEs
Metric Geometry
28A75 (primary) 28A78 (secondary)
The Favard length of a Borel set $E\subset\mathbb{R}^2$ is the average length of its orthogonal projections. We prove that if $E$ is Ahlfors 1-regular and it has large Favard length, then it contains a big piece of a Lipschitz graph. This gives a quantitative version of the Besicovitch projection theorem. As a corollary, we answer questions of David and Semmes and of Peres and Solomyak. We also make progress on Vitushkin's conjecture.
title Favard length and quantitative rectifiability
topic Classical Analysis and ODEs
Metric Geometry
28A75 (primary) 28A78 (secondary)
url https://arxiv.org/abs/2408.03919