On Lorentzian \(\alpha\)-sasakian Manifolds


Authors

A. Taleshian - Department of Mathematics, University of Mazandaran, P. O. Box 47416-1467, Mazandaran, Iran N. Asghari - Department of Mathematics, University of Mazandaran, P. O. Box 47416-1467, Mazandaran, Iran


Abstract

We study Ricci-semi symmetric, \(\phi\)-Ricci semisymmetric and \(\phi\)-symmetric Lorentzian \(\alpha\)-Sasakian manifolds. Also, we study a Lorentzia \(\alpha\)-Sasakian manifold satisfies \(S(X ,\xi).R = 0\) .


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