Buzzard–Diamond–Jarvis conjecture for the cohomology of Shimura curves

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Let FF be a totally real field, let DD be an indefinite quaternion algebra over FF, and let SD(F)S^D(\mathbb F) be the direct limit of the mod pp étale cohomology of the associated Shimura curves. Let r‾:GF→GL2(F)\overline r:G_F\to\mathrm{GL}_2(\mathbb F) be modular, and for each finite place ww let ρ‾w=r‾∣GFw\overline\rho_w=\overline r|_{G_{F_w}}. Let πwD(r‾)\pi^D_w(\overline r) be the associated smooth admissible representations, characterized at w∣pw\mid p by the Serre-weight condition. Buzzard–Diamond–Jarvis' conjecture. There is a GF×(D⊗FAF,f)×G_F\times(D\otimes_F\mathbb A_{F,f})^\times-equivariant isomorphism

SD(F)[mr‾]≅r‾⊗(⊗w′πwD(r‾)).S^D(\mathbb F)[\mathfrak m_{\overline r}]\cong\overline r\otimes\bigl(\otimes'_w\pi^D_w(\overline r)\bigr).

At w∣pw\mid p, Hom⁡GL2(OFw)(σ,πwD(ρ‾))≠0\operatorname{Hom}_{\mathrm{GL}_2(\mathcal O_{F_w})}(\sigma,\pi^D_w(\overline{\rho}))\neq0 if and only if σ∈D(ρ‾w)\sigma\in\mathscr D(\overline{\rho}_w). The weight part is proved by Gee, Liu and Savitt under the usual Taylor–Wiles hypothesis, and multiplicity one is proved by Emerton, Gee and Savitt.

References

Primary source

Yongquan Hu and Haoran Wang, “Multiplicity one for the mod p cohomology of Shimura curves: the tame case”, arXiv:1608.07992 (2017).

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