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Projectivity criteria for K\"ahler morphisms

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arxiv 2404.13927 v1 pith:5LRW2BD2 submitted 2024-04-22 math.AG math.CV

classification math.AGmath.CV
keywords criteriaahlerprojectivityalwaysapplicationcelebratedcompactfibration
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In this short note we prove two projectivity criteria for fibrations between mildly singular compact K\"ahler spaces. They are the relative versions of the celebrated criteria of Kodaira and Moishezon. As an application we obtain that the MRC fibration always has a model that is a projective morphism.

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Cited by 3 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score. Full citation record

  1. On the K\"ahler MMP and the transcendental base-point-free theorem

    math.AG 2026-07 accept novelty 7.0 of 10

    Big gklt Kähler pairs admit a full MMP with scaling, and a nef canonical class with modified-big boundary is semiample (Tosatti’s conjecture).

  2. Compact K\"ahler manifolds with nef anti-canonical bundle

    math.AG 2025-06 conditional novelty 7.0 of 10

    Every compact Kähler manifold with nef anti-canonical bundle admits a locally trivial fibration over a Calabi-Yau manifold with rationally connected fibers.

  3. On compact K\"ahler manifolds with pseudo-effective tangent bundle

    math.AG 2025-02 conditional novelty 7.0 of 10

    Compact Kähler manifolds with pseudo-effective tangent bundle admit a smooth fibration whose base is an étale quotient of a torus and whose fibers are rationally connected.

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