Blocks of group algebras are derived simple |
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| Authors: | Qunhua Liu Dong Yang |
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| Institution: | 1. Fachbereich Mathematik, Institut für Algebra und Zahlentheorie, Universit?t Stuttgart, Pfaffenwaldring 57, 70569, Stuttgart, Germany
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| Abstract: | A derived version of Maschke’s theorem for finite groups is proved: the derived categories, bounded or unbounded, of all blocks of the group algebra of a finite group are simple, in the sense that they admit no nontrivial recollements. This result is independent of the characteristic of the base field. |
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