Tensor categories attached to exceptional cells in Weyl groups

2011/08/15 by Ostrik, Victor · 1 citation
#FOS: Mathematics #Representation Theory (math.RT)

paper · doi:10.48550/arxiv.1108.3060

Abstract

Using truncated convolution of perverse sheaves on a flag variety Lusztig associated a monoidal category to a two sided cell in the Weyl group. We identify this category in the case which was not decided previously.

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• Finite Langlands correspondence

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