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We formulate and establish a generalization of Koll\'ar's injectivity theorem for adjoint bundles twisted by suitable multiplier ideal sheaves. As applications, we generalize Koll\'ar's torsion-freeness, Koll\'ar's vanishing theorem, and a…

Complex Variables · Mathematics 2022-05-24 Osamu Fujino , Shin-ichi Matsumura

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…

Complex Variables · Mathematics 2018-01-29 Shin-ichi Matsumura

We first present a Skoda type division theorem for holomorphic sections of line bundles on a projective variety which is essentially the most general, compared to previous ones. It is derived from Varolin's theorem as a corollary. Then we…

Algebraic Geometry · Mathematics 2014-08-29 Dano Kim

The purpose of this paper is to establish an injectivity theorem generalized to pseudo-effective line bundles with transcendental (non-algebraic) singular hermitian metrics and multiplier ideal sheaves. As an application, we obtain a Nadel…

Complex Variables · Mathematics 2016-04-28 Shin-ichi Matsumura

This paper contains a Kawamata-Viehweg-Koll\'ar type vanishing theorem for vector bundles. In order to formulate and prove this cleanly, we introduce a class of sheaves that automatically satisfies a vanishing theorem. This is obtained by…

Algebraic Geometry · Mathematics 2007-05-23 Donu Arapura

For proper surjective holomorphic maps from K"ahler manifolds to analytic spaces, we give a decomposition theorem for the cohomology groups of the canonical bundle twisted by Nakano semi-positive vector bundles by means of the higher direct…

Complex Variables · Mathematics 2018-01-29 Shin-ichi Matsumura

We prove new Skoda-type division, or ideal membership, theorems. We work in a geometric setting of line bundles over Kahler manifolds that are Stein away from an analytic subvariety. (This includes complex projective manifolds.) Our…

Complex Variables · Mathematics 2007-05-23 Dror Varolin

We give an analytic version of the injectivity theorem by using multiplier ideal sheaves, and prove some extension theorems for the adjoint bundle of dlt pairs. Moreover, by combining techniques of the minimal model program, we obtain some…

Algebraic Geometry · Mathematics 2014-07-30 Yoshinori Gongyo , Shin-ichi Matsumura

The purpose of this survey is to present analytic versions of the injectivity theorem and their applications. The proof of our injectivity theorems is based on a combination of the L^2-method for the dbar-equation and the theory of harmonic…

Complex Variables · Mathematics 2015-11-16 Shin-ichi Matsumura

We generalize Koll\'ar's package (including torsion freeness, injectivity theorem, vanishing theorem and decomposition theorem) to polystable locally abelian parabolic Higgs bundles twisted by a multiplier ideal sheaf associated with an…

Algebraic Geometry · Mathematics 2025-05-19 Junchao Shentu , Chen Zhao

In this expository introductory text we discuss the multiplier ideals in algebraic geometry. We state Kawamata-Viehweg's and Nadel's vanishing theorems, give a proof (following Ein and Lazarsfeld) of Koll\'ar's bound on the maximal…

Algebraic Geometry · Mathematics 2007-05-23 Samuel Grushevsky

In this paper, we establish several results related to vanishing theorems for Mather-Jacobian multiplier ideals on a Gorenstein projective variety, including an injectivity theorem, a Nadel-type vanishing theorem, a Griffith-type vanishing…

Algebraic Geometry · Mathematics 2015-08-11 Wenbo Niu

The purpose of this paper is to establish a Nadel vanishing theorem for big line bundles with multiplier ideal sheaves of singular metrics admitting an analytic Zariski decomposition (such as, metrics with minimal singularities and Siu's…

Complex Variables · Mathematics 2015-11-16 Shin-ichi Matsumura

We prove an injectivity theorem for the cohomology of the Du Bois complexes of varieties with isolated singularities. We use this to deduce vanishing statements for the cohomologies of higher Du Bois complexes of such varieties. Besides…

Algebraic Geometry · Mathematics 2026-05-27 Mihnea Popa , Wanchun Shen , Anh Duc Vo

We generalize the injectivity theorem of Esnault and Viehweg, and apply it to the structure of log canonical type divisors.

Algebraic Geometry · Mathematics 2019-02-20 Florin Ambro

We prove the injectivity and vanishing theorem for R-Hodge modules and R-divisors over projective varieties, extending the results for rational Hodge modules and integral divisors in \cite{Wu15}. In particular, the injectivity generalizes…

Algebraic Geometry · Mathematics 2018-09-11 Lei Wu

We prove a surjectivity theorem for the Deligne canonical extension of a polarizable variation of Hodge structure with quasi-unipotent monodromy at infinity along the lines of Esnault-Viehweg. We deduce from it several injectivity theorems…

Algebraic Geometry · Mathematics 2015-05-08 Lei Wu

We present in this paper a geometric theorem which clarifies and extends in several directions work of Brownawell, Kollar and others on the effective Nullstellensatz. To begin with, we work on an arbitrary smooth complex projective variety…

Algebraic Geometry · Mathematics 2009-10-31 Lawrence Ein , Robert Lazarsfeld

The goal of this survey is to present various results concerning the cohomology of pseudoeffective line bundles on compact K{\"a}hler manifolds, and related properties of their multiplier ideal sheaves. In case the curvature is strictly…

Complex Variables · Mathematics 2015-01-05 Jean-Pierre Demailly

In this paper, we obtain two extension theorems for cohomology classes and holomorphic sections defined on analytic subvarieties, which are defined as the supports of the quotient sheaves of multiplier ideal sheaves of…

Complex Variables · Mathematics 2019-09-20 Xiangyu Zhou , Langfeng Zhu
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