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arXiv · 1104.0500

Blocks of group algebras are derived simple

Qunhua Liu·Dong Yang
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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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Qunhua Liu, Dong Yang. 2011-04-04. Blocks of group algebras are derived simple. https://arxiv.org/abs/1104.0500

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