HALF LIGHTLIKE SUBMANIFOLDS OF AN INDEFINITE SASAKIAN MANIFOLD
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초록
We study half lightlike submanifolds of an indefinite Sasakian manifold. The aim of this paper is to prove the following result: If a locally symmetric half lightlike submanifold of an indefinite Sasakian manifold is totally umbilical, then it is of constant positive curvature 1. In addition to this result, we prove three characterization theorems for such a half lightlike submanifold.
Abstract
We study half lightlike submanifolds of an indefinite Sasakian manifold. The aim of this paper is to prove the following result: If a locally symmetric half lightlike submanifold of an indefinite Sasakian manifold is totally umbilical, then it is of constant positive curvature 1. In addition to this result, we prove three characterization theorems for such a half lightlike submanifold.
참고문헌 (7)
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- Duggal, K.L., "Null curves and hypersurfaces of semi-Riemannian Manifolds" (2007), World Scientic
- Jin, D.H., "GEOMETRY OF LIGHTLIKE HYPERSURFACES OF AN INDEFINITE SASAKIAN MANIFOLD", INDIAN JOURNAL OF PURE & APPLIED MATHEMATICS, 41(4), pp.569~581 (2010), INDIAN NAT SCI ACAD
- Dae Ho Jin, "TRANSVERSAL HALF LIGHTLIKE SUBMANIFOLDS OF AN INDEFINITE SASAKIAN MANIFOLD", 순수 및 응용수학, 18(1), pp.51~61 (2011), 한국수학교육학회
- Kupeli, D.N., "Singular semi-Riemannian geometry. Mathematics and Its Applications" (1996), Kluwer Acad. Publishers
