Colliot-Thélène–Parimala–Suresh Hasse principle conjecture for projective homogeneous spaces

Let kk be a pp-adic field, and let FF be the function field of a smooth projective geometrically integral curve defined over kk. Let Ω\Omega denote the set of discrete (rank 1) valuations on FF which either extend the norm of kk or are trivial on kk. Let G/FG/F be a connected linear algebraic group, and let X/FX/F be a projective homogeneous space over GG. For each vΩv\in\Omega, write FvF_v for the completion of FF with respect to vv. Colliot-Thélène–Parimala–Suresh's conjecture. The Hasse principle should hold for XX, namely

X(F)    X(Fv)vΩ.X(F)\neq\emptyset \iff X(F_v)\neq\emptyset\quad\forall v\in\Omega.

This conjecture proposes a Hasse principle for projective homogeneous spaces over function fields of curves over pp-adic fields. The paper develops an analytic approach to such local-global questions and proves the principle for certain families, while the general assertion remains open in the supplied context.

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Primary source

Vlerë Mehmeti, “An analytic viewpoint on the Hasse principle”, arXiv:2203.16234 (2024).

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