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相关论文: On cohomogeneity one Hermitian non-K\"ahler metric…

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We consider non-Kaehler compact complex manifolds which are homogeneous under the action of a compact Lie group of biholomorphisms and we investigate the existence of special (invariant) Hermitian metrics on these spaces. We focus on a…

微分几何 · 数学 2016-08-30 Fabio Podestà

This work deals with relations between a bounded cohomological invariant and the geometry of Hermitian symmetric spaces of noncompact type. The invariant, obtained from the K\"ahler class, is used to define and characterize a special class…

微分几何 · 数学 2007-05-23 Anna Wienhard

We investigate degenerate special-Hermitian metrics on compact complex manifolds, in particular, degenerate K\"ahler and locally conformally K\"ahler metrics on special classes of non-K\"ahler manifolds.

微分几何 · 数学 2018-02-20 Daniele Angella , Adriano Tomassini

We show that integrability of an almost complex structure in complex dimension $m$ is equivalent, in the presence of an almost hermitian metric, to $m(m-1)$ equations involving what we call shear operators. Inspired by this, we give an…

微分几何 · 数学 2021-01-07 Gideon Maschler , Robert Ream

We study asymptotic estimates of the dimension of cohomology on possibly non-compact complex manifolds for line bundles endowed with Hermitian metrics with algebraic singularities. We give a unified approach to establishing singular…

复变函数 · 数学 2023-11-28 Dan Coman , George Marinescu , Huan Wang

We give a partial account of some problems concerning cohomological invariants and metric properties of complex non-K\"ahler manifolds.

微分几何 · 数学 2026-02-04 Daniele Angella , Nicoletta Tardini

A cohomogeneity one manifold is a manifold with the action of a compact Lie group, whose quotient is one dimensional. Such manifolds are of interest in Riemannian geometry, in the context of nonnegative sectional curvature, as well as in…

微分几何 · 数学 2007-12-11 Corey A. Hoelscher

In this survey, we consider various analytic problems related to the geometry of the Chern connection on Hermitian manifolds, such as the existence of metrics with constant Chern-scalar curvature, generalizations of the K\"ahler-Einstein…

复变函数 · 数学 2025-05-19 Daniele Angella

For a holomorphic vector bundle over a compact K\"ahler orbifold, the slope stability of the bundle is shown to be equivalent to the existence of a Hermitian-Einstein metric or to the properness of a certain functional introduced by…

微分几何 · 数学 2022-02-21 Mitchell Faulk

We examine Hermitian metrics on unimodular Lie algebras which contains a $J$-invariant abelian ideal of codimension two, and give a classification for all Bismut K\"ahler-like and all Bismut torsion-parallel metrics on such Lie algebras.

微分几何 · 数学 2024-07-23 Yuqin Guo , Fangyang Zheng

We show that Hermitian metrics with vanishing holomorphic curvature on compact complex manifolds with pseudoeffective canonical bundle are conformally balanced. Pluriclosed metrics with vanishing holomorphic curvature on compact K\"ahler…

微分几何 · 数学 2024-08-06 Kyle Broder , Kai Tang

We introduce a new Hermitian metric on the cohomology ring of compact K\"ahlerian manifolds with a pair $(v,w)$ satisfying certain Hodge-Riemann relations. An Hermitian metric on the exterior algebra of the cotangent bundle is also defined…

代数几何 · 数学 2025-12-16 Yiran Lin

We prove that the compact Kaehler manifolds with first Chern class nonnegative that admit holomorphic parabolic geometries are the flat bundles of rational homogeneous varieties over complex tori. We also prove that the compact Kaehler…

微分几何 · 数学 2019-11-12 Benjamin McKay

F. Podest\`a and A. Spiro introduced a class of $G$-manifolds $M$ with a cohomogeneity one action of a compact semisimple Lie group $G$ which admit an invariant Kaehler structure $(g,J)$ (``standard $G$-manifolds") and studied invariant…

微分几何 · 数学 2019-06-26 Dmitri Alekseevsky , Fabio Zuddas

We deal with compact Kaehler manifolds M which are acted on by a semisimple compact Lie group G of isometries with codimension one regular orbits. We provide an explicit description of the standard blow-ups of such manifolds along complex…

微分几何 · 数学 2007-05-23 Fabio Podesta' , Andrea Spiro

We study complex non-K\"ahler manifolds with Hermitian metrics being locally conformal to metrics with special cohomological properties. In particular, we provide examples where the existence of locally conformal holomorphic-tamed…

微分几何 · 数学 2016-08-04 Daniele Angella , Luis Ugarte

We study Hermitian geometrically formal metrics on compact complex manifolds, focusing on Dolbeault, Bott-Chern, and Aeppli cohomologies. We establish topological and cohomological obstructions to their existence and we provide a detailed…

微分几何 · 数学 2025-07-15 Tommaso Sferruzza , Adriano Tomassini

We present some formulae related to the Chern-Ricci curvatures and scalar curvatures of special Hermitian metrics. We prove that a compact locally conformal K\"{a}hler manifold with constant nonpositive holomorphic sectional curvature is…

微分几何 · 数学 2019-05-09 Haojie Chen , Lingling Chen , Xiaolan Nie

We introduce the notion of K\"ahler topologically hyperbolic manifold, as a"topological" generalization of K\"ahler [Gro91] and weakly K\"ahler [BDET24] hyperbolic manifolds. Analogously to [BCDT24], we show the birational invariance of…

复变函数 · 数学 2025-07-30 Francesco Bei , Simone Diverio , Stefano Trapani

We prove the existence of a Hermitian-Einstein metric on holomorphic vector bundles with a Hermitian metric satisfying the analytic stability condition, under some assumption for the underlying K\"ahler manifolds. We also study the…

微分几何 · 数学 2019-01-03 Takuro Mochizuki
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