Kakeya Sets in Cantor directions
Classical Analysis and ODEs
2007-05-23 v1 Combinatorics
Abstract
We construct a union of N parallelograms of dimensions approximately 1/N x 1 in the plane, with the slope of their long sides in the standard Cantor set. The union has area 1/log N but the union of the doubles has area log log N/ log N. In particular, this implies unbounded of the associated maximal operator in L^p for any p different from infinity. The construction is by randomizing an earlier construction of the second author for the L^2 case. The proof that the construction satisfies the desired conditions is by elementary estimates in the theory of percolation on trees as developed by R. Lyons.
Cite
@article{arxiv.math/0609187,
title = {Kakeya Sets in Cantor directions},
author = {Michael D. Bateman and Nets Hawk Katz},
journal= {arXiv preprint arXiv:math/0609187},
year = {2007}
}
Comments
10 pages; Preliminary version