6533b86ffe1ef96bd12ce5d0

RESEARCH PRODUCT

An optimal extension of Marstrand?s plane-packing theorem

Themis MitsisThemis Mitsis

subject

Discrete mathematicsUnit spheresymbols.namesakePacking dimensionLebesgue measureGeneral MathematicsHausdorff dimensionsymbolsDimension functionHausdorff measureLebesgue covering dimensionEffective dimensionMathematics

description

We prove that if F is a subset of the 2-dimensional unit sphere in $\mathbb{R}^3$, with Hausdorff dimension strictly greater than 1, and E is a subset of $\mathbb{R}^3$ such that for each $e \in F$, E contains a plane perpendicular to the vector e, then E must have positive 3-dimensional Lebesgue measure.

https://doi.org/10.1007/s00013-003-4705-1