The Fontaine–Mazur–Langlands automorphy conjecture for conjugate self-dual representations

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Let K/K+K/K^+ be a CM extension. Let R:GK→GL⁡m(Q‾p)R:G_K\to\operatorname{GL}_m(\overline{\mathbf Q}_p) be a continuous irreducible potentially semistable representation, and let Ψ:GK+→Q‾p∗\Psi:G_{K^+}\to\overline{\mathbf Q}_p^* be a continuous character such that

R∨≅Rc⊗Ψ∣GK.R^{\vee}\cong R^c\otimes\Psi|_{G_K}.

Fontaine–Mazur–Langlands conjecture. There exists an algebraic essentially conjugate self-dual cuspidal automorphic representation π\pi of GL⁡m/K\operatorname{GL}_m/K such that ρπ≅R\rho_\pi\cong R. This combines the Fontaine–Mazur conjecture with Langlands' automorphy conjectures; the source reports results toward it, but the general statement remains unresolved.

References

Primary source

Tobias Berger, “Oddness of residually reducible Galois representations”, arXiv:1611.09315 (2016).

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