Minimal Newton strata in Iwahori double cosets

26 Nov 2019 Viehmann Eva

The set of Newton strata in a given Iwahori double coset in the loop group of a reductive group G is indexed by a finite subset of the set B(G) of Frobenius-conjugacy classes. For unramified $G$ we show that it has a unique minimal element and determine this element... (read more)

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