In the present paper, the algebra property of Riemannian manifold which is contained some special semisymmetric connection is given.
讨论特殊半对称联络的黎曼流形，给出了该流形曲率张量的一个代数结构。
2
Some equivalent representations of complex positive semi definite matrices are given by using equivalent conditions of positive semi definite of real symmetric matrix.
利用实对称矩阵的半正定之等价条件给出了复正半定矩阵的几个等价条件。
3
The invariant tensor under projective transformations of semi- symmetric metric- recurrentconnectionsisobtained.