Lang's divisible-subgroup conjecture for affine subsets of abelian varieties

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Let AA be an abelian variety defined over C\mathbb{C}, let UU be an open affine subset of AA, and let F⊂CnF\subset \mathbb{C}^n be a finitely generated subgroup. Let Div⁡(F)\operatorname{Div}(F) denote the divisible subgroup of Cn\mathbb{C}^n associated to FF. Lang's divisible-subgroup conjecture. The intersection

Div⁡(F)∩U(C)\operatorname{Div}(F)\cap U(\mathbb{C})

is finite. This extends the preceding finiteness expectation from finitely generated subgroups to their associated divisible subgroups; the authors state that proving such a result is beyond their reach, and the supplied passage gives no resolution.

References

Primary source

Arash Rastegar, “Approximation on abelian varieties by its subgroups”, arXiv:1504.03367 (2015).

Additional references

2 papers in this index state this conjecture (2015). The statement above is taken from the most recent of them; the others are arXiv:1504.03162.

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