English

On tiling the integers with $4$-sets of the same gap sequence

Combinatorics 2016-05-12 v1

Abstract

Partitioning a set into similar, if not, identical, parts is a fundamental research topic in combinatorics. The question of partitioning the integers in various ways has been considered throughout history. Given a set {x1,,xn}\{x_1, \ldots, x_n\} of integers where x1<<xnx_1<\cdots<x_n, let the {\it gap sequence} of this set be the nondecreasing sequence d1,,dn1d_1, \ldots, d_{n-1} where {d1,,dn1}\{d_1, \ldots, d_{n-1}\} equals {xi+1xi:i{1,,n1}}\{x_{i+1}-x_i:i\in\{1,\ldots, n-1\}\} as a multiset. This paper addresses the following question, which was explicitly asked by Nakamigawa: can the set of integers be partitioned into sets with the same gap sequence? The question is known to be true for any set where the gap sequence has length at most two. This paper provides evidence that the question is true when the gap sequence has length three. Namely, we prove that given positive integers pp and qq, there is a positive integer r0r_0 such that for all rr0r\geq r_0, the set of integers can be partitioned into 44-sets with gap sequence p,qp, q, rr.

Keywords

Cite

@article{arxiv.1605.03322,
  title  = {On tiling the integers with $4$-sets of the same gap sequence},
  author = {Ilkyoo Choi and Junehyuk Jung and Minki Kim},
  journal= {arXiv preprint arXiv:1605.03322},
  year   = {2016}
}

Comments

12 pages, 4 figures

R2 v1 2026-06-22T13:58:11.190Z