On the definition of unipotent representations

G. Lusztig

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arXiv · 2011.01824

On the definition of unipotent representations

G. Lusztig

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Abstract

Let G be a connected reductive group over a finite field F_q. A map from irreducible representations of G(F_q) to semisimple classes in the dual group was defined by a cohomological method by Deligne and the author in 1976. Here we show that when q is large enough this map has an alternative (non-cohomological) definition.

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BibTeX RIS

G. Lusztig. 2020-11-03. On the definition of unipotent representations. https://arxiv.org/abs/2011.01824

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