The automorphic Galois group conjecture for global Langlands correspondences
The automorphic Galois group conjecture for global Langlands correspondences
Let be a number field and let be the conjectural automorphic Galois group, with localizations compatible with the local Langlands correspondence. Write for cuspidal tempered automorphic representations of , and let denote tempered automorphic representations of a quasisplit group over .
Automorphic Galois group conjecture.
(a) There is a bijection
from equivalence classes of bounded, irreducible, -dimensional representations of to cuspidal tempered automorphic representations of , compatible with the local Langlands correspondence at each .
(b) For any quasisplit group over , there is a bijection
from equivalence classes of bounded global parameters to disjoint global packets, whose union contains the set of tempered automorphic representations of , compatible with the local Langlands correspondence at each .
The conjecture proposes that simultaneously parameterizes cuspidal tempered representations of general linear groups and tempered global packets for all quasisplit groups. The supplied text does not state which cases are known or the conjecture's current status.
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Sources & referencesView supporting material
Primary source
James Arthur, “Motives and Automorphic Representations”, arXiv:2507.10268 (2025).
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