International Journal of Mathematics and Mathematical Sciences
Volume 21 (1998), Issue 2, Pages 249-254
doi:10.1155/S0161171298000350
Two theorems on (ϵ)-Sasakian manifolds
Xufeng Xu1
and Xiaoli Chao2
1Department of Mathematics, Xuzhou Normal University, Xuzhou 221009, China
2Department of Mathematics, Hangzhou University, Hangzhou 310028, China
Abstract
In this paper, We prove that every (ϵ)-sasakian manifold is a hypersurface of an indefinite kaehlerian manifold, and give a necessary and sufficient condition for a Riemannian manifold to be an (ϵ)-sasakian manifold.