The Oka-1 conjecture for rationally connected projective manifolds

Let XX be a projective manifold that is rationally connected, meaning that any two points of XX can be joined by a rational curve. Let Oka-1 denote the property that, for every open Riemann surface, compact Runge set, discrete interpolation sequence, and continuous map holomorphic near the relevant interpolation data, one can find a homotopic holomorphic map with the prescribed approximation and jet interpolation. The Oka-1 conjecture. Every rationally connected projective manifold is Oka-1. This is posed among open problems about weak Oka-1 manifolds; the source provides no resolution of the conjecture.

Sources & referencesView supporting material

Primary source

Yunling Chen, John Erik Fornæss and Song-Yan Xie, “Generating all Ahlfors currents by a single entire curve”, arXiv:2511.12473 (2025).

Additional references

2 papers in this index state this conjecture (2023–2025). The statement above is taken from the most recent of them; the others are arXiv:2311.10667.

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