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Injectivity theorems with multiplier ideal sheaves for higher direct images under K"ahler morphisms

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arxiv 1607.05554 v2 pith:H5NITUVE submitted 2016-07-19 math.CV math.AGmath.DG

classification math.CVmath.AGmath.DG
keywords morphismssheavestheoremahlerbundlesdirecthigherideal
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The purpose of this paper is to establish injectivity theorems for higher direct image sheaves of canonical bundles twisted by pseudo-effective line bundles and multiplier ideal sheaves. As applications, we generalize Koll'ar's torsion freeness and Grauert-Riemenschneider's vanishing theorem. Moreover, we obtain a relative vanishing theorem of Kawamata-Viehweg-Nadel type and an extension theorem for holomorphic sections from fibers of morphisms to the ambient space. Our approach is based on transcendental methods and works for K"ahler morphisms and singular hermitian metrics with non-algebraic singularities.

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Cited by 2 Pith papers

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

  1. Analytic Bertini theorem II --- The local case

    math.AG 2026-07 accept novelty 8.0 of 10

    The local analytic Bertini theorem holds: multiplier ideal sheaves of psh functions on polydisc products restrict to fibers outside a pluripolar set.

  2. An extension theorem in terms of adjoint ideal sheaves

    math.CV 2026-07 conditional novelty 5.0 of 10

    On compact Kähler manifolds, holomorphic top forms on σ-lc centres of the same codimension extend to the ambient space, without L² estimates, under the curvature positivity condition (eq5.1).

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