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SEMI-RIEMANNIAN SUBMANIFOLDS OF A SEMI-RIEMANNIAN MANIFOLD WITH A SEMI-SYMMETRIC NON-METRIC CONNECTION

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초록

We study some properties of a semi-Riemannian submanifold of a semi-Riemannian manifold with a semi-symmetric non-metric connection. Then, we prove that the Ricci tensor of a semi-Riemannian submanifold of a semi-Riemannian space form admitting a semi-symmetric non-metric connection is symmetric but is not parallel. Last, we give the conditions under which a totally umbilical semi-Riemannian submanifold with a semi-symmetric non-metric connection is projectively flat.

Abstract

We study some properties of a semi-Riemannian submanifold of a semi-Riemannian manifold with a semi-symmetric non-metric connection. Then, we prove that the Ricci tensor of a semi-Riemannian submanifold of a semi-Riemannian space form admitting a semi-symmetric non-metric connection is symmetric but is not parallel. Last, we give the conditions under which a totally umbilical semi-Riemannian submanifold with a semi-symmetric non-metric connection is projectively flat.

참고문헌 (11)

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  2. N. S. Agashe, "On submanifolds of a Riemannian manifold with a semi-symmetric non-metric connection", Tensor, 55(2), pp.120~130 (1994)
  3. B. Y. Chen, "Geometry of Submanifolds" (1973), Marcel-Dekker Inc
  4. U. C. De, "Hypersurfaces of a Riemannian manifold with semisymmetric non-metric connection", J. Indian Inst. Sci, 75(6), pp.707~710 (1995)
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  6. H. A. Hayden, "Subspaces of a space with torsion", Proc. London Math. Soc. II. Ser, 34, pp.27~50 (1932)
  7. B. O’Neill, "Semi-Riemannian Geometry with Applications to Relativity" (1983), Academic Press
  8. B. Prasad, "On a type of semi-symmetric non-metric connection on a Riemannian manifold", Bull. Calcutta Math. Soc, 96(6), pp.483~488 (2004)
  9. J. Sengupta, "On a type of semi-symmetric non-metric connection on a Riemannian manifold", Indian J. Pure Appl. Math, 31(12), pp.1659~1670 (2000)
  10. K. Yano, "Structures on Manifolds" (1984), World Scientific Co. Pte. Ltd
  11. Non-degenerate hypersurfaces of a semi-Riemannian manifold with a semi-symmetric non-metric connection, to appear in Mathematical Reports, "A. Y¨ucesan", ~

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