The conjecture on intersections of subvarieties with tori

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Let n∈Nn\in \mathbb{N}, let W⊆GmnW\subseteq \mathbb{G}_{\mathrm{m}}^n be an irreducible subvariety, and let WatypW^{\mathrm{atyp}} denote the union of the atypical components of W∩HW\cap H over all algebraic subgroups H⊆GmnH\subseteq \mathbb{G}_{\mathrm{m}}^n. A component XX of W∩HW\cap H is atypical when

dim⁡X>dim⁡W+dim⁡H−n.\dim X>\dim W+\dim H-n.

The conjecture on intersections of subvarieties with tori. For every n∈Nn\in\mathbb{N} and every irreducible subvariety W⊆GmnW\subseteq\mathbb{G}_{\mathrm{m}}^n, the set WatypW^{\mathrm{atyp}} is a proper Zariski-closed subset of WW.

This is a diophantine conjecture about atypical, also called anomalous or unlikely, intersections of varieties with algebraic subgroups of tori. The supplied source does not state whether the conjecture has been resolved.

References

Primary source

Jonathan Kirby and Boris Zilber, “Exponentially Closed Fields and the Conjecture on Intersections with Tori”, arXiv:1108.1075 (2014).

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