Outer-automorphism compatibility conjecture for local Langlands reciprocity
Outer-automorphism compatibility conjecture for local Langlands reciprocity
Let be a reductive group, let be its group of -rational outer automorphisms, let , and let be a Whittaker datum. Outer-automorphism compatibility conjecture. For every relevant irreducible representation ,
This predicts equivariance of the refined local Langlands correspondence, including the possibility that outer automorphisms move representations between rigid inner twists.
Sources & referencesView supporting material
Primary source
Peter Dillery and David Schwein, “A stacky generalized Springer correspondence and rigid enhancements of L-parameters”, arXiv:2308.11752 (2024).
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