Abelian Exponential-Algebraic Closedness conjecture

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Let AA be a complex abelian variety of dimension gg, with exponential map

exp⁡A:Cg↠A,\operatorname{exp}_A:\mathbb{C}^g\twoheadrightarrow A,

and let Γexp⁡A\Gamma_{\operatorname{exp}_A} be its graph. A subvariety V⊆Cg×AV\subseteq\mathbb{C}^g\times A is free and rotund as defined in the source: freeness excludes containment of either projection in the relevant translates of non-trivial abelian subvarieties, and rotundity requires dim⁡πB(V)≥dim⁡(A/B)\dim \pi_B(V)\geq\dim(A/B) for every abelian subvariety B≤AB\leq A.

Abelian Exponential-Algebraic Closedness conjecture. If VV is a free and rotund algebraic subvariety of Cg×A\mathbb{C}^g\times A, then

V∩Γexp⁡A≠∅.V\cap\Gamma_{\operatorname{exp}_A}\neq\varnothing.

This is the abelian-variety analogue of Exponential-Algebraic Closedness for the complex exponential function. It is intended to imply quasiminimality for structures arising from abelian-variety exponentials, but the source says that the statement is implicit in Bays and Kirby rather than established here.

References

Primary source

Francesco Gallinaro, “On Some Systems of Equations in Abelian Varieties”, arXiv:2206.14074 (2023).

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