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A remark on cuspidal local systems

Victor Ostrik
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Abstract

In this note we show that all reductive groups are clean in odd characteristic. In characteristic 2 there are two cuspidal local systems (one for $F_4$ and one for $E_8$) which can not be handled by our method.

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Victor Ostrik. 2003-12-09. A remark on cuspidal local systems. https://arxiv.org/abs/math/0312195

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