Group extensions, representations, and the Schur multiplicator
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Publication:796622
zbMath0544.20001MaRDI QIDQ796622
Publication date: 1982
Published in: Lecture Notes in Mathematics (Search for Journal in Brave)
inflationperfect groupscentral extensionsfinitely presented groupsrestrictionexact sequencetransgression mapcomplex representationsdirect productprojective representationsdeficiencyfree productisoclinismGanea mapcorestrictionSylow p-subgrouprepresentation groupequivalence classes of extensionsSchur multiplicatorstem extensionBaer sum of equivalence classes of extensionsfree presentationisologismperfect covervarietal cohomology
Ordinary representations and characters (20C15) Generators, relations, and presentations of groups (20F05) Modular representations and characters (20C20) Homological methods in group theory (20J05) Extensions, wreath products, and other compositions of groups (20E22) Quasivarieties and varieties of groups (20E10) Projective representations and multipliers (20C25) Research exposition (monographs, survey articles) pertaining to group theory (20-02)
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