A combinatorial proof of Marstrand's Theorem for products of regular Cantor sets
arXiv:0911.1191 · doi:10.1016/j.exmath.2011.01.003
Abstract
In 1954 Marstrand proved that if K is a subset of R^2 with Hausdorff dimension greater than 1, then its one-dimensional projection has positive Lebesgue measure for almost-all directions. In this article, we give a combinatorial proof of this theorem when K is the product of regular Cantor sets of class C^{1+a}, a>0, for which the sum of their Hausdorff dimension is greater than 1.
arXiv comment9 pages, 1 figure, referee suggestions incorporated, to appear in Expositiones Mathematicae