English

Permutations with a distinct divisor property

Group Theory 2019-04-09 v1

Abstract

A finite group of order nn is said to have the distinct divisor property (DDP) if there exists a permutation g1,,gng_1,\ldots, g_n of its elements such that gi1gi+1gj1gj+1g_i^{-1}g_{i+1} \neq g_j^{-1}g_{j+1} for all 1i<j<n1\leq i<j<n. We show that an abelian group is DDP if and only if it has a unique element of order 2. We also describe a construction of DDP groups via group extensions by abelian groups and show that there exist infinitely many non abelian DDP groups.

Keywords

Cite

@article{arxiv.1904.04227,
  title  = {Permutations with a distinct divisor property},
  author = {Mohammad Javaheri and Nikolai A. Krylov},
  journal= {arXiv preprint arXiv:1904.04227},
  year   = {2019}
}
R2 v1 2026-06-23T08:33:15.501Z