DOI QR코드

DOI QR Code

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

  • Jin, Dae-Ho (Department of Mathematics, Dongguk University)
  • Received : 2012.01.26
  • Accepted : 2012.08.13
  • Published : 2012.08.31

Abstract

We study lightlike submanifolds M of a semi-Riemannian manifold $\bar{M}$ with a semi-symmetric non-metric connection subject to the conditions; (a) the characteristic vector field of $\bar{M}$ is tangent to M, (b) the screen distribution on M is totally umbilical in M and (c) the co-screen distribution on M is conformal Killing.

Keywords

References

  1. Ageshe, N.S. & Chafle, M.R.: A semi-symmetric non-metric connection on a Riemannian manifold. Indian J. Pure Appl. Math. 23 (1992), no. 6, 399-409.
  2. de Rham, G.: Sur la reductibilite d'un espace de Riemannian. Comm. Math. Helv. 26 (1952), 328-344. https://doi.org/10.1007/BF02564308
  3. Duggal, K.L. & Bejancu, A.: Lightlike Submanifolds of Semi-Riemannian Manifolds and Applications. Kluwer Acad. Publishers, Dordrecht, 1996.
  4. Duggal, K.L. & Jin, D.H.: Totally umbilical lightlike submanifolds. Kodai Math. J. 26 (2003), 49-68. https://doi.org/10.2996/kmj/1050496648
  5. Hawking, S.W. & Ellis, G.F.R.: The large scale structure of space-time. Cambridge University Press, Cambridge, 1973.
  6. Jin, D.H.: Geometry of lightlike hypersurfaces of a Lorentz manifold with a semi- symmetric non-metric connection. J. Geo. Phy., in press.
  7. Jin, D.H. & Lee, J.W.: Geometry of half lightlike submanifolds of a semi-Riemannian manifold with a semi-symmetric non-metric connection. accepted in Bull. Korean Math. Soc. 2012.
  8. Kupeli, D.N.: Singular Semi-Riemannian Geometry, Mathematics and Its Applications. vol. 366, Kluwer Acad. Publishers, Dordrecht, 1996.
  9. O'Neill, B.: Semi-Riemannian Geometry with Applications to Relativity. Academic Press, 1983.
  10. Yasar, E., Coken, A. C. & Yucesan, A.: Lightlike hypersurfaces in semi-Riemannian manifold with semi-symmetric non-metric connection. Math. Scand. 102 (2008), 253- 264. https://doi.org/10.7146/math.scand.a-15061

Cited by

  1. TWO CHARACTERIZATION THEOREMS FOR IRROTATIONAL LIGHTLIKE GEOMETRY vol.28, pp.4, 2013, https://doi.org/10.4134/CKMS.2013.28.4.809
  2. TWO CHARACTERIZATION THEOREMS FOR LIGHTLIKE HYPERSURFACES OF A SEMI-RIEMANNIAN SPACE FORM vol.35, pp.3, 2013, https://doi.org/10.5831/HMJ.2013.35.3.329
  3. EINSTEIN LIGHTLIKE HYPERSURFACES OF A LORENTZ SPACE FORM WITH A SEMI-SYMMETRIC NON-METRIC CONNECTION vol.50, pp.4, 2013, https://doi.org/10.4134/BKMS.2013.50.4.1367
  4. NON-EXISTENCE OF LIGHTLIKE SUBMANIFOLDS OF INDEFINITE KAEHLER MANIFOLDS ADMITTING NON-METRIC π-CONNECTIONS vol.29, pp.4, 2014, https://doi.org/10.4134/CKMS.2014.29.4.539
  5. NON-TANGENTIAL HALF LIGHTLIKE SUBMANIFOLDS OF SEMI-RIEMANNIAN MANIFOLDS WITH SEMI-SYMMETRIC NON-METRIC CONNECTIONS vol.51, pp.2, 2014, https://doi.org/10.4134/JKMS.2014.51.2.311
  6. NON-EXISTENCE OF LIGHTLIKE SUBMANIFOLDS OF INDEFINITE TRANS-SASAKIAN MANIFOLDS WITH NON-METRIC 𝜃-CONNECTIONS vol.30, pp.1, 2015, https://doi.org/10.4134/CKMS.2015.30.1.035
  7. HALF LIGHTLIKE SUBMANIFOLDS OF A SEMI-RIEMANNIAN SPACE FORM WITH A SEMI-SYMMETRIC NON-METRIC CONNECTION vol.21, pp.1, 2014, https://doi.org/10.7468/jksmeb.2014.21.1.39
  8. SINGULAR THEOREMS FOR LIGHTLIKE SUBMANIFOLDS IN A SEMI-RIEMANNIAN SPACE FORM vol.30, pp.3, 2012, https://doi.org/10.7858/eamj.2014.027