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Motivated by the torus stability problem, in this work we study K\"ahler metrics with almost non-negative scalar curvature on complex torus. We prove that after passing to a subsequence, non-collapsing sequence of K\"ahler metrics with…

Differential Geometry · Mathematics 2022-04-13 Jianchun Chu , Man-Chun Lee

In this paper we continue our study about the existence of Kaehler metrics of constant scalar curvature (Kcsc) on blow ups at points of compact manifolds with Kcsc metrics started in math.DG/0411522. In this second part we deal with the…

Differential Geometry · Mathematics 2007-05-23 Claudio Arezzo , Frank Pacard

We establish several inequalities for manifolds with positive scalar curvature and, more generally, for the scalar curvature bounded from below, in the spirit of the classical bound on the distances between conjugates points in surfaces…

Differential Geometry · Mathematics 2018-10-30 Misha Gromov

We prove a priori estimates for constant Chern scalar curvature metrics on a compact complex manifold conditional on an upper bound on the entropy, extending a recent result by Chen-Cheng in the K\"ahler setting.

Differential Geometry · Mathematics 2020-07-07 Xi Sisi Shen

In this paper we study QCH K\"ahler surfaces, i.e. 4-dimensional Riemannian manifolds (of signature (++++)) admitting a K\"ahler complex structure with quasi-constant holomorphic sectional curvature. We give a detailed description of QCH…

Differential Geometry · Mathematics 2024-02-08 Ewelina Mulawa

Extending the work of G. Sz\'ekelyhidi and T. Br\"onnle to Sasakian manifolds we prove that a small deformation of the complex structure of the cone of a constant scalar curvature Sasakian manifold admits a constant scalar curvature…

Differential Geometry · Mathematics 2015-12-01 Carl Tipler , Craig van Coevering

Recently Guillemin gave an explicit combinatorial way of constructing "toric" Kahler metrics on (symplectic) toric varieties, using only data on the moment polytope. In this paper, differential geometric properties of these metrics are…

dg-ga · Mathematics 2007-05-23 Miguel Abreu

In this paper, we give a complete description of all translation hypersurfaces with constant r-curvature Sr, in the Euclidean space.

Differential Geometry · Mathematics 2014-02-12 Barnabe Pessoa Lima , Paulo Alexandre Araujo Sousa , Juscelino Pereira Silva , Newton Luis Santos

We prove existence in the Minkowski space of entire spacelike hypersurfaces with constant negative scalar curvature and given set of lightlike directions at infinity; we also construct the entire scalar curvature flow with prescribed set of…

Differential Geometry · Mathematics 2008-09-16 Pierre Bayard

We survey some recent results and constructions of almost-K\"ahler manifolds whose curvature tensors have certain algebraic symmetries. This is an updated and corrected version of the (to be) published manuscript.

Differential Geometry · Mathematics 2007-05-23 Vestislav Apostolov , Tedi Draghici

The aim of this paper is to investigate uniqueness of conic constant scalar curvature Kaehler (cscK) metrics, when the cone angle is less than $\pi$. We introduce a new H\"older space called $\cC^{4,\a,\b}$ to study the regularities of this…

Differential Geometry · Mathematics 2019-11-21 Long Li , Kai Zheng

We consider the constant Q-curvature metric problem in the given conformal class on conic 4-manifolds and study related differential equations.

Differential Geometry · Mathematics 2020-07-15 Hao Fang , Biao Ma

We show that if $(M,\omega)$ is any compact K\"ahler manifold, then the blowup of $M$ at any point furnishes a K\"ahler metric with scalar curvature globally and arbitrarily $C^0$-close to the scalar curvature of $\omega$. It follows that…

Differential Geometry · Mathematics 2026-01-28 Garrett M. Brown

We propose a notion of stability for capillary hypersurfaces with constant higher order mean curvature and we generalize some results of the classical stability theory for CMC capillary hypersurfaces.

Differential Geometry · Mathematics 2023-01-02 Leonardo Damasceno , Maria Fernanda Elbert

We use the theory of isoparametric functions to investigate gradient Ricci solitons with constant scalar curvature. We show rigidity of gradient Ricci solitons with constant scalar curvature under some conditions on the Ricci tensor, which…

Differential Geometry · Mathematics 2014-09-12 Manuel Fernandez-Lopez , Eduardo Garcia-Rio

In this paper, we study Kropina metrics with isotropic scalar curvature. First, we obtain the expressions of Ricci curvature tensor and scalar curvature. Then, we characterize the Kropina metrics with isotropic scalar curvature on by tensor…

Differential Geometry · Mathematics 2023-08-17 Liulin Liu , Xiaoling Zhang , Lili Zhao

In this note, we prove a 2-systolic inequality on compact positive scalar curvature K\"ahler surfaces admitting a nonconstant holomorphic map to a positive-genus compact Riemann surface. According to the classification of positive scalar…

Differential Geometry · Mathematics 2026-03-12 Zehao Sha

In this study, we deal with the local structure of curves and surfaces immersed in a pseudo-isotropic space I_{p}^{3} that is a particular Cayley-Klein space. We provide the formulas of curvature, torsion and Frenet trihedron in order for…

Differential Geometry · Mathematics 2018-11-13 Muhittin Evren Aydin

In this paper, we study the generalized Abreu equation on a Delzant ploytope $\Delta \subset \mathbb{R}^2$ and prove the existence of the constant scalar metrics of homogeneous toric bundles under the assumption of an appropriate stability.

Differential Geometry · Mathematics 2016-03-08 Bohui Chen , Qing Han , An-Min Li , Zhao Lian , Li Sheng

This is a continuation of the previous articles on Kahler cone metrics. In this article, we introduce weighted function spaces and provide a self-contained treatment on cone angles in the whole interval $(0,1]$. We first construct geodesics…

Differential Geometry · Mathematics 2019-11-21 Kai Zheng
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