Few-zeros conjecture for ample line bundles on curves

Let KK be an algebraically closed field other than Fp\overline{\mathbb F}_p, and let CC be a smooth projective curve over KK.

Few-zeros conjecture. For “most” ample line bundles LL, every section of LmL^m has at least g(C)g(C) zeros for every m1m\geq 1.

The statement is known when KK is uncountable, while the most interesting open case mentioned is K=QK=\overline{\mathbb Q}. The paper also proves the nodal rational curve cases and gives examples showing that the bound can be nontrivial.

Sources & referencesView supporting material

Primary source

János Kollár, “What determines a variety?”, arXiv:2002.12424 (2020).

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