J. Korean Math. Soc. 2005; 42(5): 883-892
Printed September 1, 2005
Copyright © The Korean Mathematical Society.
D. E. Blair, Jeong-Sik Kim, and Mukut Mani Tripathi
Michigan State University, Yosu National University, Lucknow University
We classify $N(\kappa)$-contact metric manifolds which satisfy $Z(\xi,X)\cdot Z=0$, $Z(\xi,X)\cdot R=0$ or $R(\xi,X)\cdot Z=0$.
Keywords: contact metric manifold, $N(\kappa)$-contact metric manifold, $(\kappa,\mu)$-manifold, Sasakian manifold, concircular curvature tensor, concircularly symmetric, recurrent concircular curvature tensor
MSC numbers: 53C25, 53D10
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