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In this paper, we study the dimension of cohomology of semipositive line bundles over Hermitian manifolds, and obtain an asymptotic estimate for the dimension of the space of harmonic $(0,q)$-forms with values in high tensor powers of a…

Complex Variables · Mathematics 2022-08-17 Huan Wang

We prove that the canonical bundle of any holomorphic family of compact complex algebraic manifolds carries a singular Hermitian metric having non-negative curvature current and such that every holomorphic section of the canonical bundle of…

Complex Variables · Mathematics 2007-05-23 Dror Varolin

We prove the convergence of the normalized Fubini-Study measures and the logarithms of the Bergman kernels of various Bergman spaces of holomorphic and weakly holomorphic sections associated to a singular Hermitian holomorphic line bundle…

Complex Variables · Mathematics 2020-12-29 Dan Coman , George Marinescu

Let $C$ be a chain-like curve over $\mathbb{C}$. In this paper, we investigate the rationality of moduli spaces of $w$-semistable vector bundles on $C$ of arbitrary rank and fixed determinant by putting some restrictions on the Euler…

Algebraic Geometry · Mathematics 2022-06-07 Suhas B. N. , Praveen Kumar Roy , Amit Kumar Singh

In this paper, we develop several pluripotential-theoretic techniques for singular metrics on vector bundles. We first introduce the theory of non-pluripolar products on holomorphic vector bundles on complex manifolds. Then we define and…

Algebraic Geometry · Mathematics 2024-02-23 Mingchen Xia

Griffiths' conjecture asserts that a holomorphic vector bundle is ample if and only if it admits a Hermitian metric with positive curvature. In this paper, we present a new proof of this conjecture on compact Riemann surfaces using a system…

Differential Geometry · Mathematics 2025-12-25 Rei Murakami

We study Lelong numbers and integrability indices for $S^1$-invariant singular metrics on vector bundles over the disk.

Complex Variables · Mathematics 2017-08-24 Bo Berndtsson

We introduce a metric on Hilbert modules equipped with a generalized form of a differential structure, thus extending Gromov-Hausdorff convergence theory to vector bundles and quantum vector bundles --- not convergence as total space but…

Operator Algebras · Mathematics 2020-10-15 Frederic Latremoliere

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

Let $M$ be a hyperkaehler manifold, and $F$ a torsion-free and reflexive coherent sheaf on $M$. Assume that $F$ (outside of its singularities) admits a connection with a curvature which is invariant under the standard SU(2)-action on…

Algebraic Geometry · Mathematics 2011-03-11 Misha Verbitsky

Let $E\to X$ be a holomorphic vector bundle. We consider a class of a singular Hermitian metrics on $E$ with analytic singularities that contains all Griffiths negative such metrics. One can define, given a smooth reference metric $h_0$, a…

Complex Variables · Mathematics 2026-03-02 Mats Andersson , Richard Lärkäng

Let $C$ be a curve with two smooth components and a single node. Let $\mathcal{U}_C(r,w,\chi)$ be the moduli space of $w$-semistable classes of depth one sheaves on $C$ having rank $r$ on both components and Euler characteristic $\chi$. In…

Algebraic Geometry · Mathematics 2020-07-29 Sonia Brivio , Filippo F. Favale

In this paper we point out the natural relation between $\mathbb Q$-twisted objects of the derived category of abelian varieties, cohomological rank functions, and semihomogeneous vector bundles. We apply this to two basic classes of…

Algebraic Geometry · Mathematics 2025-12-23 Nelson Alvarado , Giuseppe Pareschi

In this paper, we introduce the notions of $\alpha$-Hermitian-Einstein metric and $\alpha$-stability for $I_\pm$-holomorphic vector bundles on bi-Hermitian manifolds. Moreover, we establish a Kobayashi-Hitchin correspondence for…

Differential Geometry · Mathematics 2014-11-14 Shengda Hu , Ruxandra Moraru , Reza Seyyedali

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

We provide notions of numerical effectiveness and numerical flatness for Higgs vector bundles on compact K\"ahler manifolds in terms of fibre metrics. We prove several properties of bundles satisfying such conditions and in particular we…

Differential Geometry · Mathematics 2008-03-05 Ugo Bruzzo , Beatriz Graña-Otero

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 investigate quantization properties of Hermitian metrics on holomorphic vector bundles over homogeneous compact K\"ahler manifolds. This allows us to study operators on Hilbert function spaces using vector bundles in a new way. We show…

Operator Algebras · Mathematics 2019-03-14 Andreas Andersson

We compare the behaviour of entire curves and integral sets, in particular in relation to locally trivial fiber bundles, algebraic groups and finite ramified covers over semi-abelian varieties.

Number Theory · Mathematics 2008-08-26 Joerg Winkelmann

Let X be a smooth complex projective curve of genus g bigger or equal to 1. If g is bigger than 1 assume further that X is either bielliptic or with general moduli. Under a natural condition on slopes, we prove that there exists a short…

Algebraic Geometry · Mathematics 2007-05-23 E. Ballico , B. Russo
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