English
Related papers

Related papers: An alternative approach on the singular metric on …

200 papers

We investigate singular Hermitian metrics on vector bundles, especially strictly Griffiths positive ones. $L^2$ esitimates and vanishing theorems usually require an assumption that vector bundles are Nakano positive. However there is no…

Complex Variables · Mathematics 2023-03-21 Takahiro Inayama

We study a singular Hermitian metric of a vector bundle. First, we prove the sheaf of locally square integrable holomorphic sections of a vector bundle with a singular Hermitian metric, which is a higher rank analogy of a multiplier ideal…

Complex Variables · Mathematics 2018-02-07 Masataka Iwai

In this article, we propose a definition of Nakano semi-positivity of singular Hermitian metrics on holomorphic vector bundles. By using this positivity notion, we establish $L^2$-estimates for holomorphic vector bundles with Nakano…

Complex Variables · Mathematics 2023-03-21 Takahiro Inayama

We show that a singular Hermitian metric on a holomorphic vector bundle over a Stein manifold which is negative in the sense of Griffiths (resp. Nakano) can be approximated by a sequence of smooth Hermitian metrics with the same curvature…

Complex Variables · Mathematics 2023-09-12 Fusheng Deng , Jiafu Ning , Zhiwei Wang , Xiangyu Zhou

Let $E$ be a holomorphic vector bundle endowed with a singular Hermitian metric $H$. In this paper, we develop the harmonic theory on $(E,H)$. Then we extend several canonical results of J. Koll\'{a}r and K. Takegoshi to this situation. In…

Differential Geometry · Mathematics 2021-02-09 Jingcao Wu

We introduce a notion of Nakano and Demailly positivity for singular Hermitian metrics of holomorphic vector bundles. Our definitions support the usual H\"ormander and Nadel type vanishing theorems with estimates, at least on essentially…

Complex Variables · Mathematics 2024-01-01 Dror Varolin

We introduce and study a notion of singular hermitian metrics on holomorphic vector bundles, following Berndtsson and P{\u{a}}un. We define what it means for such a metric to be curved in the sense of Griffiths and investigate the…

Complex Variables · Mathematics 2014-02-11 Hossein Raufi

We introduce a notion of singular hermitian metrics (s.h.m.) for holomorphic vector bundles and define positivity in view of $L^2$-estimates. Associated with a suitably positive s.h.m. there is a (coherent) sheaf 0-th kernel of a certain…

alg-geom · Mathematics 2008-02-03 Mark Andrea A. de Cataldo

This paper studies the approximation of singular Hermitian metrics on vector bundles using smooth Hermitian metrics with Nakano semi-positive curvature on Zariski open sets. We show that singular Hermitian metrics capable of this…

Complex Variables · Mathematics 2024-02-13 Takahiro Inayama , Shin-ichi Matsumura

The purpose of this paper is to give two supplements for vanishing theorems: One is a relative version of the Kawamata-Viehweg-Nadel type vanishing theorem, which is obtained from an observation for the variation of the numerical dimension…

Algebraic Geometry · Mathematics 2018-11-13 Shin-ichi Matsumura

We study singular Hermitian metrics on vector bundles. There are two main results in this paper. The first one is on the coherence of the higher rank analogue of multiplier ideals for singular Hermitian metrics defined by global sections.…

Complex Variables · Mathematics 2017-02-08 Genki Hosono

In this paper, we study the Nakano-positivity and dual-Nakano-positivity of certain adjoint vector bundles associated to ample vector bundles. As applications, we get new vanishing theorems about ample vector bundles. For example, we prove…

Differential Geometry · Mathematics 2011-03-31 Kefeng Liu , Xiaofeng Sun , Xiaokui Yang

We obtain the Bogomolov-Sommese type vanishing theorem involving multiplier ideal sheaves for big line bundles. We define a dual Nakano semi-positivity of singular Hermitian metrics with L2-estimates and prove the vanishing theorem which is…

Complex Variables · Mathematics 2022-08-30 Yuta Watanabe

Given a vector bundle of arbitrary rank with ample determinant line bundle on a projective manifold, we propose a new elliptic system of differential equations of Hermitian-Yang-Mills type for the curvature tensor. The system is designed so…

Differential Geometry · Mathematics 2021-07-07 Jean-Pierre Demailly

We prove that the $L^2$ metric on the direct image of an adjoint positive line bundle by a locally trivial submersion between projective manifolds is Nakano positive, under the assumption that the typical fiber has zero first Betti number.…

Complex Variables · Mathematics 2007-05-23 Indranil Biswas , Christophe Mourougane

Let $L$ be a (semi)-positive line bundle over a Kahler manifold, $X$, fibered over a complex manifold $Y$. Assuming the fibers are compact and non-singular we prove that the hermitian vector bundle $E$ over $Y$ whose fibers over points $y$…

Complex Variables · Mathematics 2012-10-30 Bo Berndtsson

In this paper we first prove a version of $L^{2}$ existence theorem for line bundles equipped a singular Hermitian metrics. Aa an application, we establish a vanishing theorem which generalizes the classical Nadel vanishing theorem.

Complex Variables · Mathematics 2020-11-20 Xiankui Meng , Xiangyu Zhou

We prove that a "cushioned" Hermitian-Einstein-type equation proposed by Demailly in an approach towards a conjecture of Griffiths on the existence of a Griffiths positively curved metric on a Hartshorne ample vector bundle, has an…

Differential Geometry · Mathematics 2021-02-05 Vamsi Pritham Pingali

In this paper, we give complex geometric descriptions of the notions of algebraic geometric positivity of vector bundles and torsion-free coherent sheaves, such as nef, big, pseudo-effective and weakly positive, by using singular Hermitian…

Algebraic Geometry · Mathematics 2021-03-17 Masataka Iwai

In the present paper, we study the properties of singular Nakano positivity of singular hermitian metrics on holomorphic vector bundles, and establish an optimal $L^2$ extension theorem for holomorphic vector bundles with singular hermitian…

Complex Variables · Mathematics 2023-03-15 Qi'an Guan , Zhitong Mi , Zheng Yuan
‹ Prev 1 2 3 10 Next ›