Phil Hoffmann, J. F. Humphreys
Abstract
The projective representations of a finite groupGover a fieldKare divided into sets, each parametrized by an element of the groupH2(G, Kx). The latter is the Schur multiplierM(G)whenK= ℂ.
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The projective representations of a finite groupGover a fieldKare divided into sets, each parametrized by an element of the groupH2(G, Kx). The latter is the Schur multiplierM(G)whenK= ℂ.
Key concepts: Schur multiplier, Projective test, Projective representation, Mathematics, Projective linear group, Pure mathematics, Group (periodic table), Finite group