Weissman's local Langlands correspondence for a cover

From papers

Let FF be the local field and let G~\widetilde G be the cover under consideration, with associated dual group data H~\widetilde H. Write Π(G~)\Pi(\widetilde G) for the relevant set of genuine irreducible representations and let Φ(H~)\Phi(\widetilde H) denote the set of isomorphism classes of semisimple L-parameters, namely sections of H~/WF\widetilde H\to */W_F. Weissman's local Langlands correspondence. There is a natural finite-to-one map

LLC:Π(G~)Φ(H~).\operatorname{LLC}:\Pi(\widetilde G)\longrightarrow\Phi(\widetilde H).

This is Weissman's version of the local Langlands correspondence for covers, extending the expected parametrization of representations by L-parameters. The source gives no evidence that the conjecture has been resolved.

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Sources & referencesView supporting material

Primary source

Luozi Shi and Yifei Zhao, “What are the extended pure inner forms of a cover?”, arXiv:2506.08696 (2025).

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