English

On generalized Schur groups

Group Theory 2022-09-13 v3 Combinatorics

Abstract

An SS-ring (Schur ring) is called central if it is contained in the center of the group ring. We introduce the notion of a generalized Schur group, i.e. such finite group that all central SS-rings over this group are schurian. It generalizes in a natural way the notion of a Schur group and they are equivalent for abelian groups. We establish basic properties and provide infinite families of nonabelian generalized Schur groups

Keywords

Cite

@article{arxiv.2209.00289,
  title  = {On generalized Schur groups},
  author = {Grigory Ryabov},
  journal= {arXiv preprint arXiv:2209.00289},
  year   = {2022}
}

Comments

11 pages

R2 v1 2026-06-28T00:32:52.730Z