Measurable Envelopes, Hausdorff Measures and Sierpiński Sets
arXiv:1109.5305
Abstract
We show that the existence of measurable envelopes of all subsets of $\RR^n$ with respect to the -dimensional Hausdorff measure is independent of . We also investigate the consistency of the existence of Sierpiński sets measurable with respect to the -dimensional Hausdorff measure.