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相关论文: Holomorphic sectional curvature of complex Finsler…

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The conformal properties of complex Finsler metrics are studied. We give a characterization of a compact complex Finsler manifold to be globally conformal K\"ahler. The critical points of the total holomorphic curvature and total Ricci…

微分几何 · 数学 2019-01-31 Bin Chen , Yibing Shen , Lili Zhao

By using a certain second order differential equation, the notion of adapted coordinates on Finsler manifolds is defined and some classifications of complete Finsler manifolds are found. Some examples of Finsler metrics, with positive…

微分几何 · 数学 2008-12-19 A. Asanjarani , B. Bidabad

Munteanu defined the canonical connection associated to a strongly pseudoconvex complex Finsler manifold $(M,F)$. We first prove that the holomorphic sectional curvature tensors of the canonical connection coincide with those of the…

微分几何 · 数学 2024-03-12 Hongjun Li , Hongchuan Xia

The Kaehler manifolds of quasi-constant holomorphic sectional curvatures are introduced as Kaehler manifolds with complex distribution of codimension two, whose holomorphic sectional curvature only depends on the corresponding point and the…

微分几何 · 数学 2008-03-04 Georgi Ganchev , Vesselka Mihova

In this paper, we establish a "pseudo-effective" version of the holonomy principle for compact K\"{a}hler manifolds with nonnegative holomorphic sectional curvature. As applications, we prove that if a compact complex manifold $M$ admits a…

微分几何 · 数学 2024-08-07 Shiyu Zhang , Xi Zhang

It is proved that if an almost K\"ahler manifold of dimension greater or equal to 8 is of pointwise constant antiholomorphic sectional curvature, then it is a complex space form.

微分几何 · 数学 2010-10-08 Maria Falcitelli , Angela Farinola , Ognian Kassabov

In this paper, a class of holomorphic invariant metrics is introduced on the irreducible classical domains of type I-IV, which are strongly pseudoconvex complex Finsler metrics in the strict sense of M. Abate and G. Patrizio[2]. These…

微分几何 · 数学 2023-04-11 Xiaoshu Ge , Chunping Zhong

We derive some consequences of the Liouville theorem for plurisubharmonic functions of L.-F. Tam and the author. The first result provides a nonlinear version of the complex splitting theorem (which splits off a factor of $\mathbb{C}$…

微分几何 · 数学 2018-08-28 Lei Ni

In this note, we continue the investigation of a projective K\"ahler manifold $M$ of semi-negative holomorphic sectional curvature $H$. We introduce a new differential geometric numerical rank invariant which measures the number of linearly…

代数几何 · 数学 2023-03-31 Gordon Heier , Steven S. Y. Lu , Bun Wong , Fangyang Zheng

For a compact relative K\"ahler fibration over a compact K\"ahler manifold with negative holomorphic sectional curvature, if the relative K\"ahler form on each fiber also exhibits negative holomorphic sectional curvature, we can construct…

微分几何 · 数学 2026-01-16 Xueyuan Wan

In this work, we investigate compact K\"ahler manifolds with non-negative or quasi-positive mixed curvature coming from a linear combination of the Ricci and holomorphic sectional curvature, which covers various notions of curvature…

微分几何 · 数学 2024-08-27 Jianchun Chu , Man-Chun Lee , Jintian Zhu

We prove that any complete non-compact K\"ahler surface with positive sectional curvature is biholomorphic to $\mathbb{C}^2$, establishing the two dimensional case of the weaker form of Yau's uniformisation conjecture. In contrast to all…

微分几何 · 数学 2026-04-14 Ved Datar , Vamsi Pritham Pingali , Harish Seshadri

Let $(X,g)$ be a compact Riemannian manifold with quasi-positive Riemannian scalar curvature. If there exists a complex structure $J$ compatible with $g$, then the canonical bundle $K_X$ is not pseudo-effective and the Kodaira dimension…

微分几何 · 数学 2017-06-06 Xiaokui Yang

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

In this paper, we obtain a necessary and sufficient condition for a $U(n)$-invariant complex Finsler metric $F$ on domains in $\mathbb{C}^n$ to be strongly convex, which also makes it possible to investigate relationship between real and…

微分几何 · 数学 2020-05-21 Kun Wang , Hongchuan Xia , Chunping Zhong

On a Kahler manifold there is a clear connection between the complex geometry and underlying Riemannian geometry. In some ways, this can be used to characterize the Kahler condition. While such a link is not so obvious in the non-Kahler…

微分几何 · 数学 2016-06-23 Michael G. Dabkowski , Michael T. Lock

On a compact complex manifold $X$, we prove a Fr\"olicher-type inequality for Bott-Chern cohomology and we show that the equality holds if and only if $X$ satisfies the $\partial\overline{\partial}$-Lemma.

微分几何 · 数学 2014-02-11 Daniele Angella , Adriano Tomassini

Motivated by the recent work of Wu and Yau on the ampleness of canonical line bundle for compact K\"ahler manifolds with negative holomorphic sectional curvature, we introduce a new curvature notion called $\textbf{real bisectional…

微分几何 · 数学 2023-03-31 Xiaokui Yang , Fangyang Zheng

We show the theorem which provides some sufficient condition to the non-existence of a complete K\"ahler--Einstein metric of negative scalar curvature whose holomorphic sectional curvature is negatively pinched: Let $\Omega$ be a bounded…

微分几何 · 数学 2023-05-23 Gunhee Cho

In complex Finsler geometry, an open problem is: does there exist a weakly K\"ahler Finsler metric which is not K\"ahler? In this paper, we give an affirmative answer to this open problem. More precisely, we construct a family of the weakly…

微分几何 · 数学 2021-03-01 Ningwei Cui , Jinhua Guo , Linfeng Zhou