The strong local Langlands interpolation conjecture for semisimple residual representations

Let ρ \overline{\rho} be a semisimple residual representation, let RρR_{ \overline{\rho}}^{\Box} be its framed deformation ring, let GG^{\Box} be the formal completion of GLn/W(k)\operatorname{GL}_n/W(k) at the identity, and let (A[L,π])m(A_{[L,\pi]})_{\mathfrak m} be the relevant localized integral Bernstein center. The group GG^{\Box} acts on RρR_{ \overline{\rho}}^{\Box} by changing the frame, and (Rρ)G(R_{ \overline{\rho}}^{\Box})^{G^{\Box}} denotes the invariant subring.

Strong local Langlands interpolation conjecture. If ρ \overline{\rho} is semisimple, there is a unique isomorphism

LL:(A[L,π])m(Rρ)G\operatorname{LL}: (A_{[L,\pi]})_{\mathfrak m} \rightarrow (R_{ \overline{\rho}}^{\Box})^{G^{\Box}}

that interpolates the characteristic-zero semisimple local Langlands correspondence.

This is presented as a stronger version of the preceding weak conjecture, using the naturality of the integral Bernstein-center and invariant deformation-ring constructions. The source gives no resolution status.

Sources & referencesView supporting material

Primary source

David Helm, “Whittaker models and the integral Bernstein center for GL_n”, arXiv:1210.1789 (2012).

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