Functoriality conjecture for the local Langlands correspondence under automorphisms
Functoriality conjecture for the local Langlands correspondence under automorphisms
Let act on the rigid inner twists of a connected reductive group , on tempered refined Langlands parameters, and on the set of tempered representations of rigid inner twists. Suppose that corresponds to . Functoriality conjecture. For every , the representation corresponds to . Equivalently, if and correspond to and , respectively, then the naturally constructed isomorphism identifies with . This asserts naturality of the refined local Langlands correspondence under the automorphism action; the source presents it as an expected compatibility for connected groups.
Sources & referencesView supporting material
Primary source
Tasho Kaletha, “On the local Langlands conjectures for disconnected groups”, arXiv:2210.02519 (2026).
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