[1] Bejancu, A., Umbilical Semi-invariant submanifolds of a Sasakian manifold, Tensor N. S. 37
(1982), 203-213.
[2] Blair, D. E., Riemannian geometry of contact and symplectic manifolds, Progress in Mathe-
matics 203. Birkhauser Boston, Inc., Boston, MA 2002.
[3] Duggal, K. L. and Bejancu, A., Lightlike submanifolds of semi-Riemannian manifolds and
applications, Mathematics and Its Applications, Kluwer Academic Publishers, Dordrecht, 1996.
[4] Bonome, A., Castro, R., Garc´ıa-Rio, E. and Hervella, L., Curvature of indefinite almost
contact manifolds, J. geom., 58 (1997), 66-86.
[5] Dajczer, M. et al., Submanifolds and isometric immersions. Mathematics lecture series 13.
Publish or Perish, Inc., Houston, Texas, 1990.
[6] Defever, F., Ricci semi-symmetric hypersurfaces, Balkan J. of Geometry and Its Appl., 5 (1)
(2000), 81-91.
[7] Duggal, K. L., On scalar curvature in lightlike geometry, J. Geom. Phys. 57 (2)(2007), 473-
481.
[8] Duggal, K. L. and Jin, D. H., Null curves and hypersurfaces of semi-Riemannian manifolds, World
Scientific Publishing Co. Pte. Ltd, 2007.
[9] Duggal, K. L. and Sahin, B., Differential Geometry of Lightlike Submanifolds, Frontiers in
Mathematics, 2010.
[10] Günes, R., Sahin, B., and Kili¸c, E., On lightlike hypersurfaces of semi-Riemannian space
form, Turkish J. Math. 27 (2003), 283-297.
[11] Janssens, D. and Vanhecke, L., Almost contact structures and curvature tensors, Kodai Math.
J., 4 (1981), 1-27.
[12] Jin, D. H., Screen conformal lightlike hypersurfaces of a semi-Riemannian space form, J.
Korea Soc. Math. Educ. Ser. B: Pure Appl. Math. 16 no. 3 (2009), 271-276.
[13] Jun, J.-B., De, U. C. and Pathak, G., On Kenmotsu manifolds, J. Korean Math. Soc., 42, 3
(2005), 435-445.
[14] Kenmotsu, K., A class of almost contact Riemannian manifolds, Tohoku Math. J., 24 (1972),
93-103.
[15] Kupeli, D. N., Singular semi-invariant geometry, vol. 366 of Mathematics and Applications,
Kluwer Academic Publishers, Dordrecht, The Netherlands, 1996.
[16] Lungiambudila, O., Massamba, F. and Tossa, J., Symmetry properties of lightlike hypersur- face
in indefinite Sasakian manifolds, SUT J. Math. 46 (2)(2010), 177-204.
[19] Massamba, F., Killing and geodesic lightlike hypersurfaces of indefinite Sasakian manifolds,
Turk J. Math., 32 (2008), 325-347.
[20] Massamba, F., Screen integrable lightlike hypersurfaces of indefinite Sasakian manifolds,
Mediterr. J. Math, 6 (2009), 27-46.
[21] Massamba, F., On semi-parallel lightlike hypersurfaces of indefinite Kenmotsu manifolds, J.
Geom., 95 (2009), 73-89.
[22] Massamba, F., Relative nullity foliations and lightlike hypersurfaces in indefinite Kenmotsu
manifolds, Turk. J. Math., 35 (2011), 129-149
[23] Massamba, F., On lightlike geometry in indefinite Kenmotsu manifolds, Math. Slovaca 62
(2)(2012), 315-344.
[24] Massamba, F., Lightlike geometry of leaves in indefinite Kenmotsu manifolds, Cubo 13 (3)
(2011), 69-89.
[25] O’Neill, B., Semi-Riemannian Geometry with Applications to Relativity, Vol. 103 of Pure and
Applied Mathematics, Academic Press, New York, NY, USA, 1983.
[26] Sahin, B., Lightlike hypersurfaces of semi-Euclidean spaces satisfying curvature conditions of
semi-symmetry, Turkish J. Math. 31 (2007) 139-162.
SCREEN ALMOST CONFORMAL LIGHTLIKE GEOMETRY IN INDEFINITE KENMOTSU SPACE FORMS
Year 2012,
Volume: 5 Issue: 2, 36 - 58, 30.10.2012
[1] Bejancu, A., Umbilical Semi-invariant submanifolds of a Sasakian manifold, Tensor N. S. 37
(1982), 203-213.
[2] Blair, D. E., Riemannian geometry of contact and symplectic manifolds, Progress in Mathe-
matics 203. Birkhauser Boston, Inc., Boston, MA 2002.
[3] Duggal, K. L. and Bejancu, A., Lightlike submanifolds of semi-Riemannian manifolds and
applications, Mathematics and Its Applications, Kluwer Academic Publishers, Dordrecht, 1996.
[4] Bonome, A., Castro, R., Garc´ıa-Rio, E. and Hervella, L., Curvature of indefinite almost
contact manifolds, J. geom., 58 (1997), 66-86.
[5] Dajczer, M. et al., Submanifolds and isometric immersions. Mathematics lecture series 13.
Publish or Perish, Inc., Houston, Texas, 1990.
[6] Defever, F., Ricci semi-symmetric hypersurfaces, Balkan J. of Geometry and Its Appl., 5 (1)
(2000), 81-91.
[7] Duggal, K. L., On scalar curvature in lightlike geometry, J. Geom. Phys. 57 (2)(2007), 473-
481.
[8] Duggal, K. L. and Jin, D. H., Null curves and hypersurfaces of semi-Riemannian manifolds, World
Scientific Publishing Co. Pte. Ltd, 2007.
[9] Duggal, K. L. and Sahin, B., Differential Geometry of Lightlike Submanifolds, Frontiers in
Mathematics, 2010.
[10] Günes, R., Sahin, B., and Kili¸c, E., On lightlike hypersurfaces of semi-Riemannian space
form, Turkish J. Math. 27 (2003), 283-297.
[11] Janssens, D. and Vanhecke, L., Almost contact structures and curvature tensors, Kodai Math.
J., 4 (1981), 1-27.
[12] Jin, D. H., Screen conformal lightlike hypersurfaces of a semi-Riemannian space form, J.
Korea Soc. Math. Educ. Ser. B: Pure Appl. Math. 16 no. 3 (2009), 271-276.
[13] Jun, J.-B., De, U. C. and Pathak, G., On Kenmotsu manifolds, J. Korean Math. Soc., 42, 3
(2005), 435-445.
[14] Kenmotsu, K., A class of almost contact Riemannian manifolds, Tohoku Math. J., 24 (1972),
93-103.
[15] Kupeli, D. N., Singular semi-invariant geometry, vol. 366 of Mathematics and Applications,
Kluwer Academic Publishers, Dordrecht, The Netherlands, 1996.
[16] Lungiambudila, O., Massamba, F. and Tossa, J., Symmetry properties of lightlike hypersur- face
in indefinite Sasakian manifolds, SUT J. Math. 46 (2)(2010), 177-204.
[19] Massamba, F., Killing and geodesic lightlike hypersurfaces of indefinite Sasakian manifolds,
Turk J. Math., 32 (2008), 325-347.
[20] Massamba, F., Screen integrable lightlike hypersurfaces of indefinite Sasakian manifolds,
Mediterr. J. Math, 6 (2009), 27-46.
[21] Massamba, F., On semi-parallel lightlike hypersurfaces of indefinite Kenmotsu manifolds, J.
Geom., 95 (2009), 73-89.
[22] Massamba, F., Relative nullity foliations and lightlike hypersurfaces in indefinite Kenmotsu
manifolds, Turk. J. Math., 35 (2011), 129-149
[23] Massamba, F., On lightlike geometry in indefinite Kenmotsu manifolds, Math. Slovaca 62
(2)(2012), 315-344.
[24] Massamba, F., Lightlike geometry of leaves in indefinite Kenmotsu manifolds, Cubo 13 (3)
(2011), 69-89.
[25] O’Neill, B., Semi-Riemannian Geometry with Applications to Relativity, Vol. 103 of Pure and
Applied Mathematics, Academic Press, New York, NY, USA, 1983.
[26] Sahin, B., Lightlike hypersurfaces of semi-Euclidean spaces satisfying curvature conditions of
semi-symmetry, Turkish J. Math. 31 (2007) 139-162.
Massamba, F. (2012). SCREEN ALMOST CONFORMAL LIGHTLIKE GEOMETRY IN INDEFINITE KENMOTSU SPACE FORMS. International Electronic Journal of Geometry, 5(2), 36-58.
AMA
Massamba F. SCREEN ALMOST CONFORMAL LIGHTLIKE GEOMETRY IN INDEFINITE KENMOTSU SPACE FORMS. Int. Electron. J. Geom. October 2012;5(2):36-58.
Chicago
Massamba, Fortune. “SCREEN ALMOST CONFORMAL LIGHTLIKE GEOMETRY IN INDEFINITE KENMOTSU SPACE FORMS”. International Electronic Journal of Geometry 5, no. 2 (October 2012): 36-58.
EndNote
Massamba F (October 1, 2012) SCREEN ALMOST CONFORMAL LIGHTLIKE GEOMETRY IN INDEFINITE KENMOTSU SPACE FORMS. International Electronic Journal of Geometry 5 2 36–58.
IEEE
F. Massamba, “SCREEN ALMOST CONFORMAL LIGHTLIKE GEOMETRY IN INDEFINITE KENMOTSU SPACE FORMS”, Int. Electron. J. Geom., vol. 5, no. 2, pp. 36–58, 2012.
ISNAD
Massamba, Fortune. “SCREEN ALMOST CONFORMAL LIGHTLIKE GEOMETRY IN INDEFINITE KENMOTSU SPACE FORMS”. International Electronic Journal of Geometry 5/2 (October 2012), 36-58.
JAMA
Massamba F. SCREEN ALMOST CONFORMAL LIGHTLIKE GEOMETRY IN INDEFINITE KENMOTSU SPACE FORMS. Int. Electron. J. Geom. 2012;5:36–58.
MLA
Massamba, Fortune. “SCREEN ALMOST CONFORMAL LIGHTLIKE GEOMETRY IN INDEFINITE KENMOTSU SPACE FORMS”. International Electronic Journal of Geometry, vol. 5, no. 2, 2012, pp. 36-58.
Vancouver
Massamba F. SCREEN ALMOST CONFORMAL LIGHTLIKE GEOMETRY IN INDEFINITE KENMOTSU SPACE FORMS. Int. Electron. J. Geom. 2012;5(2):36-58.