Covering sponges with tubes

Fuente: arXiv
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Main Author: O'Regan, William
Format: Preprint
Published: 2025
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author O'Regan, William
author_facet O'Regan, William
contents The aim of this note is to give a short proof of a result of Pyörälä--Shmerkin--Suomala--Wu; the Sierpiński carpet, and generalisations, are tube-null; they can be covered with tubes of arbitrarily small total width. We remark that a more general class of sponge-like sets satisfy this property. For a given $ε> 0$ the proof is able to give an explicit description of the tubes for which the total width is less than $ε.$
format Preprint
id arxiv_https___arxiv_org_abs_2501_02374
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle Covering sponges with tubes
O'Regan, William
Classical Analysis and ODEs
Dynamical Systems
Metric Geometry
05B99, 28A78, 28A80
The aim of this note is to give a short proof of a result of Pyörälä--Shmerkin--Suomala--Wu; the Sierpiński carpet, and generalisations, are tube-null; they can be covered with tubes of arbitrarily small total width. We remark that a more general class of sponge-like sets satisfy this property. For a given $ε> 0$ the proof is able to give an explicit description of the tubes for which the total width is less than $ε.$
title Covering sponges with tubes
topic Classical Analysis and ODEs
Dynamical Systems
Metric Geometry
05B99, 28A78, 28A80
url https://arxiv.org/abs/2501.02374