curvature vector的例句大全

In this paper, some properties of totally real and totally umbilical submanifolds of a complex projective space are obtained. We also prove that a compact totally real submanifold with positive curvature and parallel mean curvature vector of a complex projective space must be pseudo-umbilical.

获得了复射影空间中全实全脐子流形的若干性质，并且证明了复射影空间中具有平行平均曲率向量的正曲率紧致全实子流形必是伪脐的。

Totally real submanifolds with parallel mean curvature vector in cp~ n

CP~n中具有平行中曲率向量的全实子流形

The mean curvature vector of surfaces in r~ n

R~n中曲面的平均曲率向量

Compact totally real submanifolds in a complex space form without parallel mean curvature vector

复空间形式■~（2n）（C）中不存在平行平均曲率向量的紧致全实子流形

Complete space-like submanifolds with parallel mean curvature vector in de Sitter spaces

De Sitter空间中具有平行平均曲率向量的完备类空子流形

Submanifolds with Parallel Mean Curvature Vector in Spheres

球面上中曲率向量平行的子流形

On stationary Submanifolds with parallel normalized mean curvature vector

具有平行正则平均曲率向量的稳定子流形

Let be a compact pseudo-umbilical submanifolds with parallel mean curvature vector in the quasi constant curvature space. Two integrate inequalities on this kind submanifolds are given, then two sufficient conditions for to be a totally umbilical submanifold in are given.

设Mn是拟常曲率空间Nn+p中具有平行平均曲率向量的紧致伪脐子流形，论证得到了这种子流形的两个内蕴积分不等式，从而给出了Mn是全脐子流形的两个内蕴充分条件。

An integral inequality for Submanifolds with parallel mean curvature vector

具有平行中曲率向量的子流形的一个积分不等式

Numerical techniques related to the calculation of normal vector, tangential velocity, curvature and contact line are explained in detail.

文中介绍了有关泡面法向矢量、切向速度、曲率和接触线等的计算技术。

By means of differential geometry, this article recognizes tensor field on manifold and its covered vector field, scalar field further, at the same time uncovers and depicts the inherent proper curvature meaning of the relativity background space-time ( IR~ 4,η).

从近代微分几何角度，进一步认识张量场及其所涵盖的标量场和矢量场，揭示刻画相对论时空背景的内禀曲率意义；

Chapter 2 introduces some propaedeutics of classic differential geometry, which include the first basic form, the second basic form, normal curvature, main curvature, mean curvature, Gauss curvature, unit normal vector, main vector, etc.

第二章介绍一系列的预备知识，主要是关于古典微分几何中第一，第二基本形式的定义，法曲率，主曲率，平均曲率，Gauss曲率，单位法向量，主方向等的定义。

A unit vector normal to the plane of T and N, which is the plane of curvature.

垂直于T和N所构成的平面的单位向量，该平面为曲率所在的面。

A special kind of unabridged end conditions like wing is used in the interpolation of curves, it needs both radius of curvature and tangent vector perpendicular to chord line, and has been solved very successful by special processing.

其中一种比较特殊的完备边界条件是翼型条件，它要求在端点处有垂直于弦线的切线，并且具有给定的曲线半径；

The Position Vector Field of a Special Surface about Given Principal Curvature Function

给定主曲率函数的一类特殊曲面的位置向量场

The paper gives the position vector field of the rotational spacelike hypersurface in Lorentz-Minkowski space. After computing the principal curvatures and solving the differential equation system, it proves the existence of the rotational spacelike hypersurface about given principal curvature function in Lorentz-Minkowski space.

给出（n，1）型Lorentz-Minkowski空间中给定主曲率函数的旋转类空超曲面的位置向量场，通过计算超曲面的主曲率，证明了这类超曲面的存在性。