Campana rational connectedness and weak approximation
Abstract
Campana introduced a notion of Campana rational connectedness for Campana orbifolds.Given a Campana fibration over a complex curve, we prove that a version of weak approximation for Campana sections holds at places of good reduction when the general fiber satisfies a slightly stronger version of Campana rational connectedness.Campana also conjectured that any Fano orbifold is Campana rationally connected; we verify a stronger statement for toric Campana orbifolds.A key tool in our study is log geometry and moduli stacks of stable log maps.
Fields of Study & Subjects
Advanced Topology and Set Theory
Advanced Algebra and Logic
Fuzzy and Soft Set Theory
Publication details
- Journal / source
- Algebraic geometry
- Pages
- 705–746
- Publication date
- 21 August 2026
- Language
- EN