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Related papers: Chern forms of singular metrics on vector bundles

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We prove explicit formulas for Chern classes of tensor products of vector bundles, with coefficients given by certain universal polynomials in the ranks of the two bundles.

Algebraic Geometry · Mathematics 2010-12-02 Laurent Manivel

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

Given a Hermitian holomorphic vector bundle over a complex manifold, consider its flag bundles with the associated universal vector bundles endowed with the induced metrics. We prove that the universal formula for the push-forward of a…

Differential Geometry · Mathematics 2022-10-21 Filippo Fagioli

Given a proper, open, holomorphic map of K\"ahler manifolds, whose general fibers are Calabi-Yau manifolds, the volume forms for the Ricci-flat metrics induce a hermitian metric on the relative canonical bundle over the regular locus of the…

Complex Variables · Mathematics 2018-04-04 Young-Jun Choi , Georg Schumacher

Our interest is a regularity of a minimal singular metric of a line bundle. One main conclusion of our general result in this paper is the existence of continuous Hermitian metrics with semi-positive curvatures on the so-called Zariski's…

Complex Variables · Mathematics 2014-02-11 Takayuki Koike

A formula for the first Chern class of the Verlinde bundle over the moduli space of smooth genus g curves is given. A finite-dimensional argument is presented in rank 2 using geometric symmetries obtained from strange duality, relative…

Algebraic Geometry · Mathematics 2016-10-04 Alina Marian , Dragos Oprea , Rahul Pandharipande

We study Hermitian metrics with constant second scalar curvature on compact manifolds. We first consider a Yamabe-type problem for the second Bismut scalar curvature under a natural topological condition, and then analyze elliptic equations…

Differential Geometry · Mathematics 2026-01-29 Liangdi Zhang

Let $R$ be the $hh$-curvature associated with the Chern connection or the Cartan connection. Adopting the pulled-back tangent bundle approach to the Finslerian Geometry, an intrinsic characterization of $R$-Einstein metrics is given.…

Differential Geometry · Mathematics 2022-03-22 Serge Degla , Gilbert Nibaruta , Léonard Todjihounde

We introduce a notion of admissible Hermitian metrics on parabolic bundles and define positivity properties for the same. We develop Chern-Weil theory for parabolic bundles and prove that our metric notions coincide with the already…

Differential Geometry · Mathematics 2018-10-15 Indranil Biswas , Vamsi Pritham Pingali

We investigate stable holomorphic vector bundles on a compact complex K\"ahler manifold and more generally on an orbifold that is equipped with a K\"ahler structure. We use the existence of Hermite-Einstein connections in this set-up and…

Complex Variables · Mathematics 2016-05-12 Indranil Biswas , Georg Schumacher

We show that normalized currents of integration along the common zeros of random $m$-tuples of sections of powers of $m$ singular Hermitian big line bundles on a compact K\"ahler manifold distribute asymptotically to the wedge product of…

Complex Variables · Mathematics 2017-09-26 Dan Coman , George Marinescu , Viêt-Anh Nguyên

We use Chern-Weil theory for Hermitian holomorphic vector bundles with canonical connections for explicit computation of the Chern forms of trivial bundles with special non-diagonal Hermitian metrics. We prove that every del-dellbar exact…

Differential Geometry · Mathematics 2015-01-13 Vamsi P. Pingali , Leon A. Takhtajan

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

We extend finite dimensional Chern-Simons theory to certain infinite dimensional principal bundles with connections, in particular to the frame bundle $FLM\to LM$ over the loop space of a Riemannian manifold $M$. Chern-Simons forms are…

Differential Geometry · Mathematics 2007-05-23 Steven Rosenberg , Fabian Torres-Ardila

In this paper, I generalize the formula that the integration of Chern forms of hermitian line bundles equals the algebraic intersection number of the underlying line bundles. I generalize it to a formula on a quasi-projective variety over a…

Number Theory · Mathematics 2024-09-17 Ruoyi Guo

We show that any contact form whose Fefferman metric admits a nonzero parallel vector field is pseudo-Einstein of constant pseudohermitian scalar curvature. As an application we compute the curvature groups of the total space of the…

Differential Geometry · Mathematics 2007-05-23 Elisabetta Barletta , Sorin Dragomir

First we make a brief review of coherent states and prove that the resolution of unity can be obtained by the 1-st Chern character of some bundle. Next we define a Grassmann manifold for a set of coherent states and construct the pull-back…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kazuyuki Fujii

Let $X$ be a non-compact geometrically finite hyperbolic 3-manifold without cusps of rank 1. The deformation space $\mc{H}$ of $X$ can be identified with the Teichm\"uller space $\mc{T}$ of the conformal boundary of $X$ as the graph of a…

Differential Geometry · Mathematics 2011-07-26 Colin Guillarmou , Sergiu Moroianu

Let $\mathcal{F}$ be a coherent sheaf on a complex variety $X$ that has a locally free resolution $E^{\bullet}$. In [19], the authors constructed a pseudomeromorphic current whose support is contained in $supp(E^{\bullet})$ that represents…

Algebraic Geometry · Mathematics 2024-10-17 Zhaobo Tom Han

Let $p:\sXS$ be a proper K\"ahler fibration and $\sE\sX$ a Hermitian holomorphic vector bundle. As motivated by the work of Berndtsson(\cite{Berndtsson09a}), by using basic Hodge theory, we derive several general curvature formulas for the…

Complex Variables · Mathematics 2013-10-15 Kefeng Liu , Xiaokui Yang