Full measure universality for Cantor Sets
Classical Analysis and ODEs
2025-12-22 v2
Abstract
We investigate variants of the Erd\H{o}s similarity problem for Cantor sets. We prove that under a mild Hausdorff or packing logarithmic dimension assumption, Cantor sets are not full measure universal, significantly improving the known fact that sets of positive Hausdorff dimension are not measure universal. We prove a weaker result for all Cantor sets : there is a dense set of full measure , such that for any bi-Lipschitz function , the set of translations such that is of measure zero. Equivalently, there is a null set such that is null for all bi-Lipschitz functions .
Cite
@article{arxiv.2503.21079,
title = {Full measure universality for Cantor Sets},
author = {Pablo Shmerkin and Alexia Yavicoli},
journal= {arXiv preprint arXiv:2503.21079},
year = {2025}
}
Comments
v2: small issues fixed, main results unchanged. 23 pages