Truncated convolution of character sheaves
Let G be a reductive, connected algebraic group over an algebraic closure of a finite field. We define a tensor structure on the category of perverse sheaves on G which are direct sums of unipotent character sheaves in a fixed two-sided cell; we show that this is equivalent to the centre with a know...
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| Format: | Article |
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2020
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| Online Access: | https://hdl.handle.net/1721.1/124900 |