Some properties of a closed concircular almost contact manifold.
Hirică, Iulia Elena, Mihai, Adela (2004)
Balkan Journal of Geometry and its Applications (BJGA)
Similarity:
Hirică, Iulia Elena, Mihai, Adela (2004)
Balkan Journal of Geometry and its Applications (BJGA)
Similarity:
Fumio Narita (1996)
Colloquium Mathematicae
Similarity:
We consider a Riemannian submersion π: M → N, where M is a CR-submanifold of a locally conformal Kaehler manifold L with the Lee form ω which is strongly non-Kaehler and N is an almost Hermitian manifold. First, we study some geometric structures of N and the relation between the holomorphic sectional curvatures of L and N. Next, we consider the leaves M of the foliation given by ω = 0 and give a necessary and sufficient condition for M to be a Sasakian manifold.
David E. Blair, José Antonio Oubiña (1990)
Publicacions Matemàtiques
Similarity:
This paper studies conformal and related changes of the product metric on the product of two almost contact metric manifolds. It is shown that if one factor is Sasakian, the other is not, but that locally the second factor is of the type studied by Kenmotsu. The results are more general and given in terms of trans-Sasakian, α-Sasakian and β-Kenmotsu structures.
Zbigniew Olszak (1989)
Colloquium Mathematicae
Similarity:
Watson, Bill (1984)
International Journal of Mathematics and Mathematical Sciences
Similarity:
Xu, Xufeng, Chao, Xiaoli (1998)
International Journal of Mathematics and Mathematical Sciences
Similarity:
Falcitelli, Maria, Pastore, Anna Maria (2007)
Balkan Journal of Geometry and its Applications (BJGA)
Similarity:
Mihai, I., Verstraelen, L., Rosca, R. (1996)
International Journal of Mathematics and Mathematical Sciences
Similarity:
Ganchev, Georgi, Gribachev, Kostadin, Mikhova, Vesselka (1987)
Publications de l'Institut Mathématique. Nouvelle Série
Similarity:
Sorin Dragomir, Renata Grimaldi (1989)
Annales de la Faculté des sciences de Toulouse : Mathématiques
Similarity:
Prvanović, Mileva (1991)
Mathematica Pannonica
Similarity: