English

Marstrand type slicing statements in $\mathbb{Z}^{2}\subset \mathbb{R}^{2}$ are false for the counting dimension

Dynamical Systems 2026-03-17 v3 Combinatorics

Abstract

We show that for 11 separated subsets of R2\R^{2}, the natural Marstrand type slicing statements are false with the counting dimension that was used earlier by Moreira and Lima and variants of which were introduced earlier in different contexts. We construct a 11 separated subset EE of the plane which has counting dimension 11, while for a positive Lebesgue measure parameter set of tubes of width 11, the intersection of the tube with the set EE has counting dimension 11. This is in contrast to the behavior of such sets with the mass dimension where the slicing theorems hold true.

Cite

@article{arxiv.2005.09672,
  title  = {Marstrand type slicing statements in $\mathbb{Z}^{2}\subset \mathbb{R}^{2}$ are false for the counting dimension},
  author = {Aritro Pathak},
  journal= {arXiv preprint arXiv:2005.09672},
  year   = {2026}
}

Comments

To appear in Online Journal of Analytic Combinatorics

R2 v1 2026-06-23T15:40:13.053Z