Pink's finite-rank intersection conjecture

Let GG be a complex semi-abelian variety, let XX be a closed irreducible proper subvariety of GG of dimension dd, and let Γ\Gamma be a finite-rank subgroup of GG. Write G[d+1]G^{[d+1]} for the union of the algebraic subgroups of GG of codimension at least d+1d+1.

Pink's finite-rank conjecture. If XX is not contained in a translate of a proper algebraic subgroup of GG, then

X(ΓG[d+1])X\cap\bigl(\Gamma\cdot G^{[d+1]}\bigr)

is not Zariski dense in XX.

This formulation is equivalent to Pink's preceding conjecture by adjoining generators of the finite-rank subgroup. It extends the conjectural unlikely-intersection statement from algebraic subgroups to their finite-rank translates and is open in the stated generality.

Sources & referencesView supporting material

Primary source

Antoine Chambert-Loir, “Relations de dépendance et intersections exceptionnelles (Dependence relations and exceptional intersections)”, arXiv:1101.4738 (2011).

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