6533b7d2fe1ef96bd125e210

RESEARCH PRODUCT

Algebraicity of analytic maps to a hyperbolic variety

Ariyan JavanpeykarRobert A. Kucharczyk

subject

Mathematics - Differential GeometryPure mathematicsMathematics::Dynamical SystemsGeneral Mathematics010102 general mathematicsHolomorphic functionAlgebraic varietyType (model theory)01 natural sciencesMathematics::Geometric Topology010101 applied mathematicsMathematics - Algebraic GeometryDifferential Geometry (math.DG)Scheme (mathematics)FOS: MathematicsAffine transformationTranscendental number0101 mathematicsVariety (universal algebra)Algebraic numberAlgebraic Geometry (math.AG)32Q45Mathematics

description

Let $X$ be an algebraic variety over $\mathbb{C}$. We say that $X$ is Borel hyperbolic if, for every finite type reduced scheme $S$ over $\mathbb{C}$, every holomorphic map $S^{an}\to X^{an}$ is algebraic. We use a transcendental specialization technique to prove that $X$ is Borel hyperbolic if and only if, for every smooth affine curve $C$ over $\mathbb{C}$, every holomorphic map $C^{an}\to X^{an}$ is algebraic. We use the latter result to prove that Borel hyperbolicity shares many common features with other notions of hyperbolicity such as Kobayashi hyperbolicity.

https://dx.doi.org/10.48550/arxiv.1806.09338