English

The Steinhaus property and Haar-null sets

Functional Analysis 2014-02-26 v1

Abstract

It is shown that if GG is an uncountable Polish group and AGA\subseteq G is a universally measurable set such that A1AA^{-1}A is meager, then the set Tl(A)={μP(G):μ(gA)=0for allgG}T_l(A)=\{\mu\in P(G): \mu(gA)=0 \text{for all} g\in G\} is co-meager. In particular, if AA is analytic and not left Haar-null, then 1Int(A1AA1A)1\in\mathrm{Int}(A^{-1}AA^{-1}A).

Keywords

Cite

@article{arxiv.1006.2675,
  title  = {The Steinhaus property and Haar-null sets},
  author = {Pandelis Dodos},
  journal= {arXiv preprint arXiv:1006.2675},
  year   = {2014}
}

Comments

9 pages, no figures

R2 v1 2026-06-21T15:35:49.305Z