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Notes on Loewy series of centers of $p$-blocks

Representation Theory 2018-06-22 v1 Group Theory

Abstract

The present paper describes some results on the Loewy series of the center of a modular group algebra in order to solve a problem on the number of irreducible ordinary characters. For instance, we prove that a pp-block of a finite group has at least p+2p+2 characters if its defect group contains non-elementary center.

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Cite

@article{arxiv.1806.08029,
  title  = {Notes on Loewy series of centers of $p$-blocks},
  author = {Yoshihiro Otokita},
  journal= {arXiv preprint arXiv:1806.08029},
  year   = {2018}
}

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7 pages