English

Blocks with defect group D_{2^n} * C_{2^m}

Representation Theory 2011-05-26 v1

Abstract

We determine the numerical invariants of blocks with defect group D_{2^n} * C_{2^m} = Q_{2^n} * C_{2^m} (central product), where n > 2 and m > 1. As a consequence, we prove Brauer's k(B)-conjecture, Olsson's conjecture (and more generally Eaton's conjecture), Brauer's height zero conjecture, the Alperin-McKay conjecture, Alperin's weight conjecture and Robinson's ordinary weight conjecture for these blocks. Moreover, we show that the gluing problem has a unique solution in this case.

Keywords

Cite

@article{arxiv.1105.4977,
  title  = {Blocks with defect group D_{2^n} * C_{2^m}},
  author = {Benjamin Sambale},
  journal= {arXiv preprint arXiv:1105.4977},
  year   = {2011}
}

Comments

10 pages

R2 v1 2026-06-21T18:12:21.457Z