English

On moments of the Erd\H{o}s--Hooley Delta-function

Number Theory 2025-12-08 v1

Abstract

For integer n1n\geqslant 1 and real uu, let Δ(n,u):={d:dn,eu<deu+1}\Delta(n,u):=|\{d:d\mid n,\,{\rm e}^u<d\leqslant {\rm e}^{u+1}\}|. The Erd\H{o}s--Hooley Delta-function is then defined by Δ(n):=maxuRΔ(n,u).\Delta(n):=\max_{u\in{\mathbb R}}\Delta(n,u). We provide new upper bounds for weighted real moments of this function.

Keywords

Cite

@article{arxiv.2512.05652,
  title  = {On moments of the Erd\H{o}s--Hooley Delta-function},
  author = {R. de la Bretèche and G. Tenenbaum},
  journal= {arXiv preprint arXiv:2512.05652},
  year   = {2025}
}