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相关论文: Some remarks on Hermitian manifolds satisfying K\"…

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We study the existence of three classes of Hermitian metrics on certain types of compact complex manifolds. More precisely, we consider balanced, SKT and astheno-K\"ahler metrics. We prove that the twistor spaces of compact hyperk\"ahler…

微分几何 · 数学 2018-02-08 Anna Fino , Gueo Grantcharov , Luigi Vezzoni

In this paper, we construct metallic K\"ahler and nearly metallic K\"ahler structures on Riemanian manifolds. For such manifolds with these structures, we study curvature properties. Also we describe linear connections on the manifold,…

综合数学 · 数学 2019-07-02 Sibel Turanli , Aydin Gezer , Hasan Cakicioglu

The subject of investigations are the almost hypercomplex manifolds with Hermitian and anti-Hermitian (Norden) metrics. A linear connection D is introduced such that the structure of these manifolds is parallel with respect to D and its…

微分几何 · 数学 2012-05-08 Mancho Manev , Kostadin Gribachev

We study compact complex $3$-dimensional non-K\"ahler Bismut Ricci flat pluriclosed Hermitian manifolds (BHE) via their dimensional reduction to a special K\"ahler geometry in complex dimension $2$, recently obtained by Barbaro, Streets and…

微分几何 · 数学 2026-01-30 Vestislav Apostolov , Abdellah Lahdili , Kuan-Hui Lee

In the present paper, we introduce bi-slant submersions from almost Hermitian manifolds onto Riemannian manifolds as a generalization of invariant, anti-invariant, semi-invariant, slant, semi-slant and hemi-slant Riemannian submersions. We…

综合数学 · 数学 2020-03-10 Cem Sayar , Mehmet Akif Akyol , Rajendra Prasad

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

In this note we study a positivity notion for the curvature of the Bismut connection; more precisely, we study the notion of \emph{Bismut-Griffiths-positivity} for complex Hermitian non-K\"ahler manifolds. Since the K\"ahler-Ricci flow…

微分几何 · 数学 2021-08-18 Giuseppe Barbaro

In this article, we propose the following conjecture: if the Strominger connection of a compact Hermitian manifold has constant non-zero holomorphic sectional curvature, then the Hermitian metric must be K\"ahler. The main result of this…

微分几何 · 数学 2023-02-24 Shuwen Chen , Fangyang Zheng

We study evolution of (strong K\"ahler with torsion) SKT structures via the pluriclosed flow on complex nilmanifolds, i.e. on compact quotients of simply connected nilpotent Lie groups by discrete subgroups endowed with an invariant complex…

微分几何 · 数学 2013-07-30 Nicola Enrietti , Anna Fino , Luigi Vezzoni

The paper observes an almost Hermitian manifold as an example of a generalized Riemannian manifold and examines the application of a quarter-symmetric connection on the almost Hermitian manifold. The almost Hermitian manifold with…

微分几何 · 数学 2024-01-15 Milan Zlatanović , Miroslav Maksimović

We show that a Hermitian algebraic curvature model satisfies the Gray identity if and only if it is geometrically realizable by a Hermitian manifold. Furthermore, such a curvature model can in fact be realized by a Hermitian manifold of…

微分几何 · 数学 2008-12-16 M. Brozos-Vazquez , P. Gilkey , H. Kang , S. Nikcevic

We prove that locally conformally K\"ahler metrics on certain compact complex surfaces with odd first Betti number can be deformed to new examples of bi-Hermitian metrics.

微分几何 · 数学 2014-11-18 Vestislav Apostolov , Michael Bailey , Georges Dloussky

A compact complex manifold $V$ is called Vaisman if it admits an Hermitian metric which is conformal to a K\"ahler one, and a non-isometric conformal action by $\mathbb C$. It is called quasi-regular if the $\mathbb C$-action has closed…

微分几何 · 数学 2024-05-24 Liviu Ornea , Misha Verbitsky

Given a smooth positive measure $\mu$ on a complete Hermitian manifold with Ricci curvature bounded from below, we prove a pointwise Agmon-type bound for the corresponding Bergman kernel, under rather general conditions involving the…

复变函数 · 数学 2020-11-05 Franz Berger , Gian Maria Dall'Ara , Duong Ngoc Son

We compute the (1,1)-Aeppli cohomology of compact simply-connected Lie groups. From this, we deduce that the Bismut flat metrics on the compact Bismut flat manifolds with finite fundamental group are globally stable for the pluriclosed…

微分几何 · 数学 2024-10-01 Giuseppe Barbaro

We show that a compact complex surface which admits a conformally K\"ahler metric g of positive orthogonal holomorphic bisectional curvature is biholomorphic to the complex projective plane. In addition, if g is a Hermitian metric which is…

微分几何 · 数学 2015-04-07 Mustafa Kalafat , Caner Koca

We study compact almost complex manifolds admitting a Hermitian metric satisfying an integral condition involving $\overline \partial$-harmonic $(0,1)$-forms. We prove that this integral condition is automatically satisfied, if the…

微分几何 · 数学 2023-02-08 Anna Fino , Nicoletta Tardini , Adriano Tomassini

We consider homogeneous hypercomplex manifolds with a transitive action of a compact Lie group and we give a characterization of invariant HKT metrics on them. On every such hypercomplex manifold we prove the existence of an invariant…

微分几何 · 数学 2026-04-27 Lucio Bedulli , Lorenzo Marcocci

We review the relations between compact complex manifolds carrying various types of Hermitian metrics (K\"ahler, balanced or {\it strongly Gauduchon}) and those satisfying the $\partial\bar\partial$-lemma or the degeneration at $E_1$ of the…

代数几何 · 数学 2011-02-09 Dan Popovici

We show that on smooth minimal surfaces of general type, the K\"ahler-Ricci flow starting at any initial K\"ahler metric converges in the Gromov-Hausdorff sense to a K\"ahler-Einstein orbifold surface. In particular, the diameter of the…

微分几何 · 数学 2018-12-14 Bin Guo , Jian Song , Ben Weinkove