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Tag Archives: class functions
Quick Guide to Character Theory (II): Main Theory
Reminder: throughout this series, G is a finite group and K is a field. All Kvector spaces are assumed to be finitedimensional over K. G4. Maschke’s Theorem If is a K[G]submodule, it turns out V is isomorphic to the direct sum of W and some other submodule W’. … Continue reading