English

On centers of blocks with non-cyclic defect groups

Representation Theory 2016-11-21 v1

Abstract

In this short note we study the center ZB of a block B of a finite group over an algebraically closed field of prime characteristic through its Loewy length llZB. A result of Okuyama in 1981 gave an upper bound for llZB in terms of defect group of B. The purpose of this note is to improve this bound for non-cyclic defect groups.

Cite

@article{arxiv.1611.06058,
  title  = {On centers of blocks with non-cyclic defect groups},
  author = {Yoshihiro Otokita},
  journal= {arXiv preprint arXiv:1611.06058},
  year   = {2016}
}

Comments

3 pages

R2 v1 2026-06-22T16:56:56.374Z