English

Existence of magic rectangle sets over finite abelian groups

Combinatorics 2025-05-22 v1

Abstract

Let aa, bb and cc be positive integers. Let (G,+)(G,+) be a finite abelian group of order abcabc. A GG-magic rectangle set MRSG(a,b;c)_G(a,b;c) is a collection of cc arrays of size a×ba\times b whose entries are elements of a group GG, each appearing exactly once, such that the sum of each row in every array equals a constant γG\gamma\in G and the sum of each column in every array equals a constant δG\delta\in G. This paper establishes the necessary and sufficient conditions for the existence of an MRSG(a,b;c)_G(a,b;c) for any finite abelian group GG, thereby confirming a conjecture presented by Cichacz and Hinc.

Keywords

Cite

@article{arxiv.2410.23662,
  title  = {Existence of magic rectangle sets over finite abelian groups},
  author = {Shikang Yu and Tao Feng and Hengrui Liu},
  journal= {arXiv preprint arXiv:2410.23662},
  year   = {2025}
}

Comments

14 pages

R2 v1 2026-06-28T19:42:26.592Z