Riemannian space

On groups of motions in a Riemannian space with indefinite metric

关于非正定的黎曼空间中的运动群

On the Group of Conformal Transformations of a Riemannian Space with Indefinite Metric

关于线素非正定的黎曼空间的共形变换群

Some Properties on the Conformally Flat Riemannian Space of Class One

一阶共形平坦空间的几个性质

Natural gradient is a new optimization way that is proposed in a special space ? Riemannian Space .

自然梯度下降法是一种新的最优化方法，自然梯度下降法是在黎曼空间下提出的，自然梯度相比于标准梯度有很多优点。

The Hypersurfaces of Constant Curvature of a Conformally Flat Riemannian Space

共形平坦空间中的常曲率超曲面

On some properties of Riemannian space of quasi-constant curvature

拟常曲率黎曼空间的某些性质

On the Recurrent Hypersurfaces in a Riemannian Space with Quasi-constant Curvature

关于拟常曲率黎曼空间的循环超曲面

As is well known to us , a quasi-constant curvature Riemannian space is equivalent to a conformally flat quasi - Einstein space .

如所知，拟常曲率黎曼空间等价于共形平坦的拟Einstein空间。

On the Existences of Semi-Symmetric Spaces and of Geodesic Mapping between a Riemannian Space and Semi-Symmetric Space

关于半对称空间的存在性和测地对应问题

Based on the algorithm of Delaunay triangulation , introduce a metric tensor to complete the surface triangulation . And the definition of the cavity in a Riemannian space is given .

在Delaunay三角剖分算法的基础上，通过引入黎曼度量矩阵完成了曲面非结构网格生成，并给出了黎曼空间下的近似外接圆准则。

A. Einstein took the gravitation phenomenon as the curvature property of Riemannian space , the physics phenomenon may be considered as geometry phenomenon . Therefore , Riemannian geometry may be applied in general relativity theory and theoretical physics .

A.Einstein把引力现象解释成黎曼空间的曲率性质，使得物理现象变成几何现象，从而使黎曼几何在广义相对论和理论物理中得到了广泛的应用。

In this paper , we consider the heat flows for weakly p - harmonic maps into spheres or Riemannian Homogeneous space respectively .

分别考虑了映入球面及紧致的齐性Riemannian空间的弱P－调和映射流；