English

Completely realisable groups

Group Theory 2023-03-29 v1

Abstract

Given a construction ff on groups, we say that a group GG is \textit{ff-realisable} if there is a group HH such that Gf(H)G\cong f(H), and \textit{completely ff-realisable} if there is a group HH such that Gf(H)G\cong f(H) and every subgroup of GG is isomorphic to f(H1)f(H_1) for some subgroup H1H_1 of HH and vice versa. In this paper, we determine completely Aut{\rm Aut}-realisable groups. We also study ff-realisable groups for f=Z,F,M,D,Φf=Z,F,M,D,\Phi, where Z(H)Z(H), F(H)F(H), M(H)M(H), D(H)D(H) and Φ(H)\Phi(H) denote the center, the Fitting subgroup, the Chermak-Delgado subgroup, the derived subgroup and the Frattini subgroup of the group HH, respectively.

Keywords

Cite

@article{arxiv.2303.15636,
  title  = {Completely realisable groups},
  author = {Georgiana Fasolă and Marius Tărnăuceanu},
  journal= {arXiv preprint arXiv:2303.15636},
  year   = {2023}
}

Comments

To appear in J. Algebra Appl