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The present paper deals with the study of warped product pointwise bi-slant submanifolds of Kenmotsu manifolds with an example. The characterization for such submanifold is also discussed. An inequality of such submanifold is obtained and…

微分几何 · 数学 2018-03-29 Shyamal Kumar Hui , Joydeb Roy , Tanumoy Pal

Huisken and Ilmanen in [37] created the theory of weak solutions for inverse mean curvature flows (IMCF) of hypersurfaces on Riemannian manifolds, and proved successfully a Riemannian version of the Penrose inequality. The present paper…

微分几何 · 数学 2024-12-09 Jingshi Cui , Peibiao Zhao

Given a convex cone in the \emph{prescribed} warped product, we consider hypersurfaces with boundary which are star-shaped with respect to the center of the cone and which meet the cone perpendicularly. If those hypersurfaces inside the…

微分几何 · 数学 2017-06-02 Li Chen , Jing Mao , Ni Xiang , Chi Xu

We study harmonic maps from Riemannian manifolds into arbitrary non-positively curved and CAT(-1) metric spaces. First we discuss the domain variation formula with special emphasis on the error terms. Expanding higher order terms of this…

微分几何 · 数学 2017-11-21 Brian Freidin

Motivated by the quasi-local mass problem in general relativity, we study the rigidity of isometric immersions with the same mean curvature into a warped product space. As a corollary of our main result, two star-shaped hypersurfaces in a…

微分几何 · 数学 2018-04-17 Chunhe Li , Pengzi Miao , Zhizhang Wang

We study some properties of mean curvature flow solitons in general Riemannian manifolds and in warped products, with emphasis on constant curvature and Schwarzschild type spaces. We focus on splitting and rigidity results under various…

微分几何 · 数学 2024-01-17 Giulio Colombo , Luciano Mari , Marco Rigoli

We introduce a $\mathbb{Z}$--coefficient version of Guth's macroscopic stability inequality for almost-minimizing hypersurfaces. In manifolds with a lower bound on macroscopic scalar curvature, we use the inequality to prove a lower bound…

微分几何 · 数学 2017-12-14 Hannah Alpert

We determine a Simons' type formula for spacelike submanifolds within a broad class of semiRiemannian warped products. This formula extends the Simons' type formulas initially introduced by Nomizu and Smyth in 1969 for constant mean…

微分几何 · 数学 2023-12-19 Guillermo A. Lobos , Mynor Melara , Maria R. B. Santos

This paper is the first step in a systematic project to study examples of K\"ahler manifolds with positive holomorphic sectional curvature ($H > 0$). Previously Hitchin proved that any compact K\"ahler surface with $H>0$ must be rational…

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

In this paper, we study the elliptic Weingarten surfaces of minimal type immersed in the warped product space $\mathbb{R} \times_{h} \mathbb{R}$, when $h$ is a $C^{1}$-function in $\mathbb{R}^{2}$ with radial symmetry. That is, surfaces…

微分几何 · 数学 2023-12-07 Carlos Peñafiel , Bernardo A. Quaglia , Haimer A. Trejos

In this article, we establish Hoeffding's inequality for bounded Lipschitz functions of a class of not necessarily irreducible Markov models. The result complements the existing literature on this topic where Hoeffding's inequality for…

概率论 · 数学 2021-11-30 Nikola Sandric , Stjepan Sebek

Our aim is to study invariant hypersurfaces immersed in the Euclidean space $\mathbb{R}^{n+1}$, whose mean curvature is given as a linear function in the unit sphere $\mathbb{S}^n$ depending on its Gauss map. These hypersurfaces are closely…

微分几何 · 数学 2019-08-21 Antonio Bueno , Irene Ortiz

In this paper, we study constant scalar curvature K\"ahler (cscK) metrics on complete non-compact K\"ahler--Einstein manifolds. We give sufficient conditions under which a cscK perturbation of a K\"ahler--Einstein metric must remain…

微分几何 · 数学 2026-04-14 Zehao Sha

In this paper, we establish the existence of prescribed mean curvature (PMC) hypersurfaces in conformal product manifolds with (possibly empty) $C^{1,\alpha}$ fixed graphical boundaries under a barrier condition. This result generalizes…

微分几何 · 数学 2026-03-31 Qiang Gao , Hengyu Zhou

We prove wellposedness of the Cauchy problem for the nonlinear Schrodinger equation for any defocusing power nonlinearity on a domain of the plane with Dirichlet boundary conditions. The main argument is based on a generalized Strichartz…

偏微分方程分析 · 数学 2007-05-23 Ramona Anton

We study the existence of starshaped compact hypersurfaces with prescribed m-th mean curvature in hyperbolic space.

偏微分方程分析 · 数学 2007-05-23 Qinian Jin , YanYan Li

In this paper we provide several uniqueness and non-existence results for complete parabolic constant mean curvature spacelike hypersurfaces in Lorentzian warped products under appropriate geometric assumptions. As a consequence of this…

微分几何 · 数学 2014-01-31 Juan A. Aledo , Alfonso Romero , Rafael M. Rubio

We study equivalence of invariant metrics on noncompact K\"ahler manifolds with a complete Bergman metric of bounded curvature. Especially only the boundedness of the ratio between Bergman kernel and the $n$-times wedge product of Bergman…

微分几何 · 数学 2023-12-04 Gunhee Cho , Kyu-Hwan Lee

We investigate the mean curvature flows in a class of warped product manifolds with closed hypersurfaces fibering over $\mathbb{R}$. In particular, we prove that under natural conditions on the warping function and Ricci curvature bound for…

微分几何 · 数学 2019-05-21 Zheng Huang , Zhou Zhang , Hengyu Zhou

In this paper, we prove the short-time existence of hyperbolic inverse (mean) curvature flow (with or without the specified forcing term) under the assumption that the initial compact smooth hypersurface of $\mathbb{R}^{n+1}$…

微分几何 · 数学 2020-10-16 Zhe Zhou , Chuan-Xi Wu , Jing Mao
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