Mathematical Journal of Okayama University 61巻 1号
2019-01 発行
Tasaka, Fuminori
National Institute of Technology Tsuruoka College
A 2-block of a finite group having a Klein four hyperfocal subgroup has the same number of irreducible Brauer characters as the corresponding 2-block of the normalizer of the hyperfocal subgroup.
Mathematics Subject Classification. Primary 20C20; Secondry 20C05.