English

Percolative properties of the random coprime colouring

Probability 2025-09-11 v1 Number Theory

Abstract

Given uu and vv in Zd\mathbb{Z}^d, say that uu is visible from vv if the segment from uu to vv contains exactly two elements, which are uu and vv. Take XX "uniformly at random in Zd\mathbb{Z}^d" and colour each vertex uu of Zd\mathbb{Z}^d in white if uu is visible from XX and in black otherwise. Previous independent works of Pleasants-Huck and of the third author give a precise meaning to this definition. This paper is dedicated to the study of this random colouring from the point of view of percolation theory: given a reasonable graph structure on Zd\mathbb{Z}^d, how many infinite black (resp. white) connected components are there?

Keywords

Cite

@article{arxiv.2509.08452,
  title  = {Percolative properties of the random coprime colouring},
  author = {Samuel Le Fourn and Mike Liu and Sébastien Martineau},
  journal= {arXiv preprint arXiv:2509.08452},
  year   = {2025}
}