Campana rational connectedness and weak approximation

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Authors: Qile Chen, Brian Lehmann, Sho Tanimoto
Cited by: 0

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