English

$\infty$-Categorical Generalized Langlands Program I: Mixed-Parity Modules and Sheaves

Number Theory 2024-05-24 v3 Algebraic Geometry

Abstract

Mixed-parity module emerges for instance when a de Rham Galois representation is being tensored with a square root of cyclotomic character, which produces half odd integers as the corresponding Hodge-Tate weights. We build the whole foundation on the pp-adic Hodge theory in this setting over small vv-stacks after Scholze and we also consider certain moduli vv-stack which parametrizes families of mixed-parity Hodge modules. Examples of the small vv-stacks in our mind are rigid analytic spaces over pp-adic fields and moduli vv-stack of vector bundles over Fargues-Fontaine curves. The preparation implemented at this level will be expected to provide further essential foundationalization for generalized Langlands program after Langlands, Drinfeld, Fargues-Scholze. One side of the generalized Langlands correspondence in the geometric setting is the perverse motivic derived \infty-category over ModuliG\mathrm{Moduli}_G related to smooth representations of reductive groups, while the other side of the generalized Langlands correspondence in the geometric setting is the corresponding derived \infty-category over the stack of mixed-parity LL-parametrizations (i.e. from two-fold covering of the Weil group into \ell-adic groups) related to the representations of Weil group in our setting into Langlands dual groups. Although after Scholze and Fargues-Scholze our generalized Langlands program can go along \ell-adic cohomologicalization to immediately achieve various solid derived \infty-categories DerCateˊt(ModuliG,)\mathrm{DerCat}_\text{\'et}(\mathrm{Moduli}_G,\square), DerCatlisse,(ModuliG,)\mathrm{DerCat}_\mathrm{lisse, \blacksquare}(\mathrm{Moduli}_G,\square), DerCat(ModuliG,)\mathrm{DerCat}_{\blacksquare}(\mathrm{Moduli}_G,\square) and so on with well-established formalism regarding 6-functors, we already provide certain pp-adic cohomologicalization of the story over ModuliG\mathrm{Moduli}_G.

Keywords

Cite

@article{arxiv.2311.10019,
  title  = {$\infty$-Categorical Generalized Langlands Program I: Mixed-Parity Modules and Sheaves},
  author = {Xin Tong},
  journal= {arXiv preprint arXiv:2311.10019},
  year   = {2024}
}

Comments

120 pages. Third version

R2 v1 2026-06-28T13:23:34.402Z