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Let M be a compact complex surface which admits a Kaehler metric whose scalar curvature has integral zero; and suppose the fundamental group of M does not contain an Abelian subgroup of finite index. Then if M is blown up at sufficiently…

alg-geom · 数学 2009-10-22 Claude LeBrun , Michael Singer

For a Kahler metric, the Riemannian scalar curvature is equal to twice the Chern scalar curvature. The question we address here is whether this equivalence can hold for a non-Kahler Hermitian metric. For such metrics, if they exist, the…

微分几何 · 数学 2015-05-12 Michael G. Dabkowski , Michael T. Lock

In this paper we characterize logarithmic surfaces which admit K\"ahler-Einstein metrics with negative scalar curvature and small edge singularities along a normal crossing divisor.

微分几何 · 数学 2014-10-10 Luca Fabrizio Di Cerbo

We study the conditions under which a K\"ahlerian structure $(G,J)$ of general natural lift type on the cotangent bundle $T^*M$ of a Riemannian manifold $(M,g)$ has constant holomorphic sectional curvature. We obtain that a certain…

微分几何 · 数学 2008-10-10 S. L. Druta

We give a general construction of extremal Kaehler metrics on the total space of certain holomorphic submersions, extending results of Dervan-Sektnan, Fine, and Hong. We consider submersions whose fibres admit a degeneration to Kaehler…

微分几何 · 数学 2022-02-01 Annamaria Ortu

We define a functional for Hermitian metrics using the curvature of the Chern connection. The Euler-Lagrange equation for this functional is an elliptic equation for Hermitian metrics. Solutions to this equation are related to…

微分几何 · 数学 2009-01-26 Jeffrey Streets , Gang Tian

Minimal surfaces in the Riemannian product of surfaces of constant curvature have been considered recently, particularly as these products arise as spaces of oriented geodesics of 3-dimensional space-forms. This papers considers more…

微分几何 · 数学 2024-12-10 Nikos Georgiou , Brendan Guilfoyle

Recently, Wu-Yau and Tosatti-Yang established the connection between the negativity of holomorphic sectional curvatures and the positivity of canonical bundles for compact K\"ahler manifolds. In this short note, we give anothe proof of…

微分几何 · 数学 2018-02-16 Ryosuke Nomura

For a general cubic fourfold, it was observed by Donagi and Markman that the relative intermediate Jacobian fibration associated to the family of its hyperplane sections carries a natural holomorphic symplectic form making the fibration…

代数几何 · 数学 2018-01-16 Radu Laza , Giulia Saccà , Claire Voisin

We show that for every $\epsilon>0$, there exists a compact lamination by $\epsilon$-holomorphic surfaces in the complex projective plane, minimal, and that carries hyperbolic holonomy. We call $\epsilon$-holomorphic a real 2-dimensional…

动力系统 · 数学 2007-05-23 Bertrand Deroin

We prove some Liouville type results for generalized holomorphic maps in three classes: maps from pseudo-Hermitian manifolds to almost Hermitian manifolds, maps from almost Hermitian manifolds to pseudo-Hermitian manifolds and maps from…

微分几何 · 数学 2021-10-08 Haojie Chen , Yibin Ren

In this paper, we study factorable surfaces in a 3-dimensional isotropic space. We classify such surfaces with constant isotropic Gaussian (K) and mean curvature (H). We provide a non-existence result related with the surfaces satisfying…

微分几何 · 数学 2016-12-09 Muhittin Evren Aydin

We prove that if a compact smooth polarized complex manifold admits in the corresponding Hodge K\"ahler class a conformally K\"ahler, Einstein--Maxwell metric, or more generally, a K\"ahler metric of constant $(\xi, a, p)$-scalar curvature,…

微分几何 · 数学 2018-09-24 Abdellah Lahdili

In this paper, we prove that a two-dimensional self-shrinker, homeomorphic to the sphere, immersed in the three dimensional Euclidean space is a round sphere, provided its mean curvature and the norm of its position vector have an upper…

微分几何 · 数学 2021-09-14 Hilário Alencar , Gregório Silva Neto , Detang Zhou

In this work we study surfaces in radial conformally flat spaces. We characterize surfaces of rotation with constant Gaussian and Extrinsic curvature in these radial 3-spaces. We prove that all the spheres in the conformal 3-space have…

微分几何 · 数学 2016-06-29 Armando V Corro , Marcelo A. Souza , Romildo Pina

In this paper, we establish some diameter rigidity for K\"ahler manifolds with positive holomorphic sectional curvature.

微分几何 · 数学 2025-12-16 Jianchun Chu , Man-Chun Lee , Jintian Zhu

The geometric Cauchy problem for a class of surfaces in a pseudo-Riemannian manifold of dimension 3 is to find the surface which contains a given curve with a prescribed tangent bundle along the curve. We consider this problem for constant…

微分几何 · 数学 2013-03-15 David Brander , Martin Svensson

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

In this paper, we study the existence of various harmonic maps from Hermitian manifolds to Kaehler, Hermitian and Riemannian manifolds respectively. By using refined Bochner formulas on Hermitian (possibly non-Kaehler) manifolds, we derive…

微分几何 · 数学 2014-03-27 Kefeng Liu , Xiaokui Yang

In this paper, we prove the solvability of the vortex equation on a holomorphic vector bundle over a compact Hermitian manifold using the continuity method, and show the Kobayashi-Hitchin correspondence for holomorphic pairs. This work…

微分几何 · 数学 2025-03-13 Ryoma Saito
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