Generalized Langlands geometric objects for two-fold Weil coverings

Let KK be a finite extension of Qp \mathbb{Q}_p or Fq((z)) \mathbb{F}_q((z)) with p \ell\neq p and p>2p>2, let G/KG/K be reductive, and let WK,2W_{K,2} denote the indicated two-fold covering group of the Weil group WKW_K. Write GdualieˊG^\text{duali\'e} for the reductive dual group and

GLan=Gdualieˊ×rightWK.G^\text{Lan}=G^\text{duali\'e}\overset{\mathrm{right}}{\times}W_K.

For any condensed morphism from WK,2W_{K,2} to GLanG^\text{Lan}, the generalized Langlands conjecture. There should be geometric objects on the other side of the Langlands correspondence that functorially extend the usual Schur-irreducible sheaves over the moduli vv-stack of vector bundles on Fargues–Fontaine curves. This proposes an extension of the usual geometric Langlands objects to the setting with the additional two-fold Weil-group information; the source does not establish existence or resolution, so the conjecture remains open.

Sources & referencesView supporting material

Primary source

Xin Tong, “-Categorical Generalized Langlands Correspondence II: Langlands Program Formalism”, arXiv:2405.17909 (2024).

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