Abstract

For connected reductive groups together with a Frobenius root |$F$|⁠, we show that the cohomology of the structure sheaf and respectively the canonical sheaf for compactified Deligne–Lusztig varieties associated to an element in the free monoid generated by the simple reflections is isomorphic to that of a minimal length element in an |$F$|-conjugacy class in the Weyl group.

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