English

A discretized point-hyperplane incidence bound in $\mathbb{R}^d$

Classical Analysis and ODEs 2023-04-20 v1 Combinatorics Number Theory

Abstract

Let PP be a δ\delta-separated (δ,s,CP)(\delta, s, C_P)-set of points in B(0,1)RdB(0, 1)\subset \mathbb{R}^d and Π\Pi be a δ\delta-separated (δ,t,CΠ)(\delta, t, C_\Pi)-set of hyperplanes intersecting B(0,1)B(0, 1) in Rd\mathbb{R}^d. Define ICδ(P,Π)=#{(p,π)P×Π ⁣:pπ(Cδ)}.I_{C\delta}(P, \Pi)=\#\{(p, \pi)\in P\times \Pi\colon p\in \pi(C\delta)\}. Suppose that s,td+12s, t\ge \frac{d+1}{2}, then we have ICδ(P,Π)δPΠI_{C\delta}(P, \Pi)\lesssim \delta |P||\Pi|. The main ingredient in our argument is a measure theoretic result due to Eswarathansan, Iosevich, and Taylor (2011) which was proved by using Sobolev bounds for generalized Radon transforms. Our result is essentially sharp, a construction will be provided and discussed in the last section.

Keywords

Cite

@article{arxiv.2304.09464,
  title  = {A discretized point-hyperplane incidence bound in $\mathbb{R}^d$},
  author = {Thang Pham and Chun-Yen Shen and Nguyen Pham Minh Tri},
  journal= {arXiv preprint arXiv:2304.09464},
  year   = {2023}
}

Comments

14 pages

R2 v1 2026-06-28T10:10:40.761Z