English

A set of points on the sphere with small Riesz energy

Classical Analysis and ODEs 2026-07-09 v1

Abstract

We construct a set of points {x1,,xn}S2\left\{x_1, \dots, x_n\right\} \subset \mathbb{S}^2 such that ij1xixj2n2logn4+cn2+O(n11/6logn), \sum_{i \neq j} \frac{1}{\|x_i - x_j\|^2} \leq \frac{n^2 \log{n}}{4} + cn^2 + O(n^{11/6} \log{n}), where the constant c0.085768c \sim -0.085768\dots is given in closed form and matches the constant that was conjectured by Brauchart-Hardin-Saff to be optimal. The point set is motivated by the crystallization conjecture and consists of pieces of the hexagonal lattice projected onto the sphere in a tightly interlocked way.

Keywords

Cite

@article{arxiv.2607.08049,
  title  = {A set of points on the sphere with small Riesz energy},
  author = {Stefan Steinerberger},
  journal= {arXiv preprint arXiv:2607.08049},
  year   = {2026}
}