André–Pink–Mordell–Lang conjecture

Let T=S×AT=S\times A be the product of a Shimura variety SS and an abelian variety AA, and let XTX\varsubsetneq T be a weakly special generic closed irreducible subvariety. Fix a sub-Shimura variety SAgS\subset\mathcal{A}_{g'} for some gg', let sS(C)s\in S(\mathbb{C}), and let Σs\Sigma_s be the isogeny class of ss. Fix a subgroup of finite rank ΓA(C)\Gamma\leq A(\mathbb{C}). André–Pink–Mordell–Lang conjecture. The set

(Σs×Γ)X(\Sigma_s\times\Gamma)\cap X

is not Zariski dense in XX. This is an isogeny-class analogue of the preceding unlikely-intersection conjectures; the supplied text does not state a resolution.

Sources & referencesView supporting material

Primary source

Gregorio Baldi, “On a conjecture of Buium and Poonen”, arXiv:1803.04946 (2019).

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