English

A restricted projection problem for fractal sets in $\mathbb{R}^n$

Classical Analysis and ODEs 2024-01-23 v2

Abstract

Let γ:[1,1]Rn\gamma: [-1, 1]\to \mathbb{R}^n be a smooth curve that is non-degenerate. Take mnm\le n and a Borel set E[0,1]nE\subset [0, 1]^n. We prove that the orthogonal projection of EE to the mm-th order tangent space of γ\gamma at θ[1,1]\theta\in [-1, 1] has Hausdorff dimension min{m,dim(E)}\min\{m, \dim(E)\} for almost every θ[1,1]\theta\in [-1, 1].

Keywords

Cite

@article{arxiv.2211.09508,
  title  = {A restricted projection problem for fractal sets in $\mathbb{R}^n$},
  author = {Shengwen Gan and Shaoming Guo and Hong Wang},
  journal= {arXiv preprint arXiv:2211.09508},
  year   = {2024}
}

Comments

referee report incorporated

R2 v1 2026-06-28T06:07:05.427Z