An improved bound on the number of dot products determined by a finite point set in the plane

Fuente: arXiv
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Main Author: Kokkinos, Michalis
Format: Preprint
Published: 2025
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author Kokkinos, Michalis
author_facet Kokkinos, Michalis
contents We are interested to bound from below the number of distinct dot products determined by a finite set of points $P$ in the Euclidean plane. In this paper, we build on the work of B. Hanson, O. Roche-Newton, and S. Senger, to obtain the improved lower bound \[|\{p\cdot q : p,q\in P\}|\gtrsim |P|^{\frac2 3 + \frac{7}{1425}}.\]
format Preprint
id arxiv_https___arxiv_org_abs_2502_12727
institution arXiv
publishDate 2025
record_format arxiv
spellingShingle An improved bound on the number of dot products determined by a finite point set in the plane
Kokkinos, Michalis
Combinatorics
Number Theory
52C10, 11B30
We are interested to bound from below the number of distinct dot products determined by a finite set of points $P$ in the Euclidean plane. In this paper, we build on the work of B. Hanson, O. Roche-Newton, and S. Senger, to obtain the improved lower bound \[|\{p\cdot q : p,q\in P\}|\gtrsim |P|^{\frac2 3 + \frac{7}{1425}}.\]
title An improved bound on the number of dot products determined by a finite point set in the plane
topic Combinatorics
Number Theory
52C10, 11B30
url https://arxiv.org/abs/2502.12727