内容

目次

Part 1 Projective representations: second cohomology groups; twistedgroup algebras; introduction to projective representations; coveringgroups; degrees of irreducible representations; counting irreduciblerepresentations; reduction to smaller groups. Part 2 The Schurmultiplier: operator groups and bilinear forms; free groups, homologyand resolutions; generalities; Schur's formula and applications;symmetric and alternating groups; Schur multipliers of p-groups;cohomological G-functors; wreath products; linear groups; some simplegroups; Schur multipliers and orthogonal modules; finite coxeter groups.