Local mod pp Langlands determination conjecture for ordinary representations

Let FF be a CM field in which pp is unramified, let ww be a place of FF above pp, and let r:Gal(Q/F)GLn(Fp)\overline{r}:\operatorname{Gal}(\overline{\mathbf{Q}}/F)\rightarrow\mathrm{GL}_n(\overline{\mathbf{F}}_p) be an automorphic Galois representation. Let Π(r)\Pi(\overline{r}) be the associated smooth representation of GLn(Fw)\mathrm{GL}_n(F_w), and write rGal(Qp/Fw)\overline{r}|_{\operatorname{Gal}(\overline{\mathbf{Q}}_p/F_w)} for its local restriction. Local mod pp Langlands determination conjecture. The local Galois representation rGal(Qp/Fw)\overline{r}|_{\operatorname{Gal}(\overline{\mathbf{Q}}_p/F_w)} is determined by Π(r)\Pi(\overline{r}). This conjecture asks whether the automorphic representation and the corresponding local Galois representation determine each other in the mod pp Langlands setting; the paper notes that the structure of Π(r)\Pi(\overline{r}) is poorly understood beyond known descriptions of its ordinary part.

Sources & referencesView supporting material

Primary source

Chol Park and Zicheng Qian, “On mod p local-global compatibility for GL_n(Q_p) in the ordinary case”, arXiv:1712.03799 (2018).

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