Potential good reduction conjecture for basic admissible pairs

Let L/QpL/\mathbb{Q}_p be a pp-adic field and let X/LX/L be a smooth rigid analytic variety. Let AdmPairbasic,pgr(X)\mathrm{AdmPair}^{\mathrm{basic},\mathrm{pgr}}(X^\diamond) denote basic admissible pairs with potentially good reduction, and let VHS(X)\mathrm{VHS}(X^\diamond) denote variations of pp-adic Hodge structure. Potential good reduction conjecture. The functor

AdmPairbasic,pgr(X)VHS(X)\mathrm{AdmPair}^{\mathrm{basic},\mathrm{pgr}}(X^\diamond)\longrightarrow\mathrm{VHS}(X^\diamond)

is essentially surjective and therefore defines an equivalence

AdmPairbasic,pgr(X)VHS(X).\mathrm{AdmPair}^{\mathrm{basic},\mathrm{pgr}}(X^\diamond)\xrightarrow{\sim}\mathrm{VHS}(X^\diamond).

For X=SpaLX=\operatorname{Spa}L, the conjecture holds by the usual potentially crystalline equivalence; the general variation statement remains open in the supplied text.

Sources & referencesView supporting material

Primary source

Sean Howe and Christian Klevdal, “Admissible pairs and p-adic Hodge structures III: Variation and unlikely intersection”, arXiv:2603.22610 (2026).

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