Projective representations and relative semisimplicity

DOI10.1006/jabr.1998.7783zbMath0934.20013OpenAlexW2059363886MaRDI QIDQ1305078

Uri Onn, Eli Aljadeff, Yuval Ginosar

Publication date: 12 April 2000

Published in: Journal of Algebra (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1006/jabr.1998.7783

zbMATH Keywords

finite groupsprojective modulesSylow subgroupslatticesprojective representationstwisted group ringsdihedral Sylow 2-subgroups

Mathematics Subject Classification ID

Group rings of finite groups and their modules (group-theoretic aspects) (20C05) Twisted and skew group rings, crossed products (16S35) Projective representations and multipliers (20C25)

Related Items (3)

Division algebras with a projective basis ⋮ Projective Schur algebras of nilpotent type are Brauer equivalent to radical algebras ⋮ Semisimple strongly graded rings

Cites Work

• On blocks of twisted group algebras
• Projectivity and relative projectivity over group rings
• Semisimple algebras, Galois actions and group cohomology
• Induction from elementary abelian subgroups
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