- 期刊
On Some Classes of Weakly Projective Symmetric Manifolds
並列摘要
The object of the present paper is to study some classes of weakly projective symmetric manifolds ＂(WPS)_n＂. At first some properties of the 1-forms of ＂(WPS)_n＂(n＞2) have been studied. Next we consider conformally flat ＂(WPS)_n＂(n＞2). Among others we obtain that, in a ＂(WPS)_n＂ the integral curves of the vector ρ3 defined by (1.3), are geodesics under certain condition. Next we consider (WPS)4 perfect fluid spacetime. Finally, we give an example of a ＂(WPS)_n＂.
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