查询词典 differential geometry

In this paper we define the concept of Projective Blaschke manifolds and extend the theory of equiaffine differential geometry to the projective Blaschke manifolds. We prved that if M be a complete projective Blaschke n-sphere and its universal covering manifold is isometric to a complete (n+1) dimensional parabolic, elliptic or hyperbolic affine hypersphere, then M is a quotient space of E^n, S^n or D^n by a isometric subgroup of its corresponding spaces.

在这篇文章中我们定义了射影Blaschke流形的概念，将等仿射微分几何的理论推广到了射影Blaschke流形，并证明：如果n维完备射影Blaschke 超球面 M 的通用覆盖流形分别是完备的抛物型、椭圆型或双曲型仿射球，则M分别是n维欧氏空间、n维超球面或n维单位圆盘关于各自空间的一个等距离散子群的商，从而对完备射影Blaschke 超球面进行了分类。

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。

In this paper linear algebra and differential geometry are used to analyze the structure of linear and nonlinear control systems possessing symmetries.

这一方法对于非线性系统的很多方面，如能控性，能观性，分解，解耦及精确线性化。。。

Gauss, Karl Friedrich1777-1855German mathematician and astronomer known for his contributions to algebra, differential geometry, probability theory, and number theory.

高斯，卡尔·弗雷德里希1777-1855德国数学家和天文学家，因其对代数、微积分几何、或然率理论和数字理论的贡献而为人称道

German mathematician and astronomer known for his contributions to algebra, differential geometry, probability theory, and number ''.

高斯，卡尔·弗雷德里''。'希'。''1777－1855德国数学家和天文学家，因其对代数、微积分几何、或然率''。'理论'。''和数字''。

The centerline of elastic rod or elastic filament can be abstracted as space curves to deal with them by the knowledge of the theory of space curve and differential geometry.

由于弹性杆的中心线或弹性细丝可以抽象成空间曲线，然后根据空间曲线论和微分几何的知识进行处理。

Combined the curve theory of differential geometry and the cable model applied distributed load, form analysis and tension analysis of boundary cable, ridge cable and valley cable were performed.

结合微分几何的曲线论和分布荷载作用下索的受力模型，研究了索膜结构中边索、脊索和谷索的受力分析和形状分析。

Considering the varying of velocity of the missile and target, the classical differential geometry curve theory approach and Lyapunov stability theory are combined to create a new design approach to three dimensional missile guidance problems.

在考虑导弹速度和目标速度均为时变的情况下，将微分几何方法与李雅普诺夫稳定理论结合起来，提出了一种导弹三维导引规律设计新方法。

For beginners to differential geometry of the understanding and application of research to a certain extent help.

对于初学者进行微分几何应用方面的了解和研究有一定的帮助。

This type of differentiation is commonly used in classical differential geometry.

这种类型的分化，是常用的古典微分几何。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。