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We show that the bigraded quasi-isomorphism type of the bigraded, bidifferential algebra of forms on a compact K\"ahler manifold generally contains more information than the de Rham cohomology algebra with its real Hodge structure. More…

Algebraic Topology · Mathematics 2024-04-16 Giovanni Placini , Jonas Stelzig , Leopold Zoller

The aim of this paper is to classify compact Kahler manifolds with quasi-constant holomorphic sectional curvature.

Differential Geometry · Mathematics 2016-02-26 Wlodzimierz Jelonek

We extend the Dinh-Sibony notion of densities of currents to the setting where the ambient manifold is not necessarily K\"ahler and study the intersection of analytic sets from the point of view of densities of currents. As an application,…

Complex Variables · Mathematics 2019-03-19 Duc-Viet Vu

We propose an inequality between the longitudinally polarized density and the transversity of a quark in a nucleon. This inequality, whose validity is limited to very small scales, is based on considerations about Lorentz transformations…

High Energy Physics - Phenomenology · Physics 2007-05-23 Elvio Di Salvo

Let $X$ be a compact K\"ahler manifold of dimension $n.$ Let $T$ and $S$ be two positive closed currents on $X$ of bidegree $(p,p)$ and $(q,q)$ respectively with $p+q\le n.$ Assume that $T$ has a continuous super-potential. We prove that…

Dynamical Systems · Mathematics 2015-07-21 Duc-Viet Vu

This article is concerned with Chern class and Chern number inequalities on polarized manifolds and nef vector bundles. For a polarized pair $(M,L)$ with $L$ very ample, our first main result is a family of sharp Chern class inequalities.…

Differential Geometry · Mathematics 2022-05-11 Ping Li , Fangyang Zheng

We propose an alternative for the Clebsch decomposition of currents in fluid mechanics, in terms of complex potentials taking values in a Kahler manifold. We reformulate classical relativistic fluid mechanics in terms of these complex…

High Energy Physics - Theory · Physics 2011-10-11 T. S. Nyawelo , J. W. van Holten , S. Groot Nibbelink

We consider the dynamics of meromorphic maps of compact K\"ahler manifolds. In this work, our goal is to locate the non-nef locus of invariant classes and provide necessary and sufficient conditions for existence of Green currents in…

Dynamical Systems · Mathematics 2013-05-29 Turgay Bayraktar

We give an account of old and new results concerning many types of non-K\"ahler metrics, with focus on the problem of their coexistence on compact complex manifolds, and their behaviour at deformations and blow-up. We also describe a…

Differential Geometry · Mathematics 2025-05-06 Liviu Ornea , Miron Stanciu

Let f be a holomorphic automorphism of a compact Kahler manifold (X,\omega) of dimension k>1. We study the convex cones of positive closed (p,p)-currents T_p, which satisfy a functional relation $f^*(T_p)=\lambda T_p, \lambda>1,$ and some…

Dynamical Systems · Mathematics 2007-05-23 Tien-Cuong Dinh , Nessim Sibony

We propose a classification of non-k\"ahlerian surfaces from a dynamical point of view and show how the known non-k\"ahlerian surfaces fit into it.

Complex Variables · Mathematics 2020-06-18 Ionuţ Chiose , Matei Toma

We prove that compact complex manifolds with admitting metrics with negative Chern curvature operator either admit a $dd^c$-exact positive (1,1) current, or are K\"ahler with ample canonical bundle. In the case of complex surfaces we obtain…

Differential Geometry · Mathematics 2019-04-01 Man-Chun Lee , Jeffrey Streets

In this thesis, we study cohomological properties of non-K\"ahler manifolds. In particular, we are concerned in investigating the cohomology of compact (almost-)complex manifolds, and of manifolds endowed with special structures, e.g.,…

Differential Geometry · Mathematics 2013-02-05 Daniele Angella

We classify compact almost-K\"ahler four manifolds with nonnegative biorthogonal curvature.

Differential Geometry · Mathematics 2023-11-29 Inyoung Kim

For a very ample line bundle L on a compact connected complex manifold X, with a real structure, we discuss entanglement properties of certain sequences of vectors in tensor products of spaces of holomorphic sections of powers of L.

Mathematical Physics · Physics 2018-07-04 Tatyana Barron , Timothy Pollock

In this paper, improving a preceding work, we obtain asymptotic polybalanced kernels associated to extremal Kaehler metrics on polarized algebraic manifolds. As a corollary, we have a stronger asymptotic relative Chow-polystability for…

Differential Geometry · Mathematics 2016-11-01 Toshiki Mabuchi

We show that if $M = X \times Y$ is the product of two complex manifolds (of positive dimensions), then $M$ does not admit any complete K\"ahler metric with bisectional curvature bounded between two negative constants. More generally, a…

Differential Geometry · Mathematics 2008-01-03 Harish Seshadri , Fangyang Zheng

Let $Y$ be a compact K\"ahler manifold. We show that the weak regularization $K_n$ of Dinh and Sibony for the diagonal $\Delta_Y$ (see Section 2 for more detail) is compatible with wedge product in the following sense: If $T$ is a positive…

Dynamical Systems · Mathematics 2011-11-02 Tuyen Trung Truong

In this paper, we investigate the condition on warped product manifold of a Kenmotsu manifold and the real line to be a conformal Kahler manifold. This result demonstrates the close relation of Kenmotsu and Kahler manifolds.

Differential Geometry · Mathematics 2021-09-14 H. Attarchi , M. M. Rezaii

We give examples of smooth surfaces with negative first Chern class which are slope unstable with respect to certain polarisations, and so have Kahler classes that do not admit any constant scalar curvature Kahler metrics. We also compare…

Algebraic Geometry · Mathematics 2009-11-11 J. Ross