Mod-pp local-global compatibility conjecture for unitary groups

About 14 years old · traced to

Let FF be the relevant number field, let KpK^p be a tame level with split ramification, and let x∈X(L)x\in\mathbb{X}(L) be a regular classical point such that ρx\rho_x is residually irreducible and m(πx)=1m(\pi_x)=1. For each v∤pv\nmid p, let πˉx,v\bar{\pi}_{x,v} be the associated representation of U(Fv)U(F_v), and set

m=⨂v∤pπˉx,vKv,b(ρˉx)=Hom⁡H(Kp)(m,bx).m=\bigotimes_{v\nmid p}\bar{\pi}_{x,v}^{K_v},\qquad b(\bar{\rho}_x)=\operatorname{Hom}_{\mathcal{H}(K^p)}(m,b_x).

Mod-pp local-global compatibility conjecture. The tautological map

Φ:b(ρˉx)⊗(⨂v∤pπˉx,vKv)⟶bx\Phi:b(\bar{\rho}_x)\otimes\left(\bigotimes_{v\nmid p}\bar{\pi}_{x,v}^{K_v}\right)\longrightarrow b_x

is an isomorphism preserving the actions of G(Qp)G(\mathbb{Q}_p) and H(Kp)\mathcal{H}(K^p). This is proposed as a guiding principle; the source notes that it is known when S(Kp)=∅S(K^p)=\varnothing, but otherwise does not establish it.

References

Primary source

Claus M. Sorensen, “Eigenvarieties and invariant norms: Towards p-adic Langlands for U(n)”, arXiv:1208.0703 (2012).

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