English

On the isomorphism problem for monoids of product-one sequences

Commutative Algebra 2025-02-18 v2 Group Theory Number Theory

Abstract

Let G1G_1 and G2G_2 be torsion groups. We prove that the monoids of product-one sequences over G1G_1 and over G2G_2 are isomorphic if and only if the groups G1G_1 and G2G_2 are isomorphic. This was known before for abelian groups.

Keywords

Cite

@article{arxiv.2304.01459,
  title  = {On the isomorphism problem for monoids of product-one sequences},
  author = {Alfred Geroldinger and Jun Seok Oh},
  journal= {arXiv preprint arXiv:2304.01459},
  year   = {2025}
}

Comments

To appear in the Bulletin of the Lond. Math. Soc