1 |
A. Bejancu, Null hypersurfaces of semi-Euclidean spaces, Saitama Math J., 14(1996), 25-40.
|
2 |
F. Defever, R. Deszcz, Z. Sentruk, L. Verstraelen and S. Yaprak, P. J. Ryan's problem in semi-riemannian space forms, Glasgow Math. J., 41(1999), 271-281.
DOI
|
3 |
F. Defever, Ricci-semisymmetric hypersurfaces, Balkan J. of Geometry and its appl., 5(2000), 81-91.
|
4 |
J. Deprez, Semi-parallel surfaces in Euclidean space, J. of Geometry, 25(1985), 192-200.
DOI
|
5 |
G. D. Ludden, Submanifolds of cosympletic manifolds, Journal of Differential Geometry, 4(1970), 237-244.
DOI
|
6 |
Y. Matsuyama, Complete hypersurfaces with R:S = 0 in , Proc. Amer. Math. Soc., 88(1983), 119-123.
|
7 |
K. Nomizu, On hypersurfaces satisfying a certain condition on the curvature tensor, Tohoku Math. J., 20(1986), 46-59.
|
8 |
P. J. Ryan, Hypersurfaces with parallel Ricci tensor, Osaka J. Math., 8(1971), 251-259.
|
9 |
B. Sahin, Lightlike hypersurfaces of semi-Euclidean spaces satisfying curvature conditions of semi-symmetry type, Turk. J. Math., 31(2007), 139-162.
|
10 |
Z. Szabo, Structure theorems on Riemannian spaces satisfying R(X, Y ),R = 0, the local version, J. Differential Geometry, 17(1982), 531-582.
DOI
|
11 |
R. Gunes, B. Sahin and E. Kilic, On lightlike hypersurfaces of a semi-Riemannian space form, Turk. J. Math., 27(2003), 283-297.
|
12 |
B. E., Abdalla, F., Dillen: A Ricci semi-symmetric hypersurface of Euclidean space which is not semi-symmetric, Proc. Amer. Math. Soc., 130(2002), 1805-1808.
DOI
ScienceOn
|
13 |
K. L. Duggal and A. Bejancu, Lightlike Submanifolds of Semi-Riemannian Manifolds and Applications, Kluwer Acad. Publishers, Dordrecht, (1996).
|
14 |
P. J. Ryan, A class of complex hypersurfaces, Colloquium Math., 26(1972), 175-182.
DOI
|
15 |
S. Tanno, Hypersurfaces satisfying a certain condition on the Ricci tensor, Tohoku Math. J., 21(1969), 297-303.
DOI
|