English

On the modular isomorphism problem for groups of nilpotency class 2 with cyclic center

Group Theory 2023-06-13 v1 Representation Theory

Abstract

We show that the modular isomorphism problem has a positive answer for groups of nilpotency class 2 with cyclic center, i.e. that for such p-groups G and H an isomorphism between the group algebras FG and FH implies an isomorphism of the groups G and H for F the field of p elements. For groups of odd order this implication is also proven for F being any field of characteristic p. For groups of even order we need either to make an additional assumption on the groups or on the field.

Keywords

Cite

@article{arxiv.2306.06957,
  title  = {On the modular isomorphism problem for groups of nilpotency class 2 with cyclic center},
  author = {Diego García-Lucas and Leo Margolis},
  journal= {arXiv preprint arXiv:2306.06957},
  year   = {2023}
}
R2 v1 2026-06-28T11:02:42.169Z