Results 21 to 30 of about 388 (168)

Compact Totally Real Minimal Submanifolds in a Bochner-Kaehler Manifold

open access: yesUniversal Journal of Mathematics and Applications, 2018
In this paper, we establish the following results: Let $M$ be an $% m-$dimensional compact totally real minimal submanifold immersed in a locally symmetric Bochner-Kaehler manifold $\tilde{M}$ with Ricci curvature bounded from below. Then either $M$ is a
Mehmet Bektaş   +2 more
doaj   +1 more source

Isotropic totally real submanifolds

open access: yesMathematische Zeitschrift, 1988
The authors study n-dimensional totally real isotropic submanifolds of a complex manifold. A submanifold of a Riemannian manifold is called isotropic [\textit{B. O'Neill}, Can. J. Math. 17, 907-915 (1965; Zbl 0171.205)] if \(\| h(v,v)\|^ 2=\lambda (p),\) where h denotes the second fundamental form, is independent of the unit tangent vector v at the ...
Urbano, Francisco, Montiel, Sebastián
openaire   +1 more source

Totally umbilical CR-submanifolds of Semi-Riemannian Kaehler manifolds

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1987
We study totally umbilical CR-submanifolds of a Kaehler manifold carrying a semi-Riemannian metric. It is shown that for dimension of the totally real distribution greater than one, these submanifolds are locally decomposable into a complex and a totally
K. L. Duggal, R. Sharma
doaj   +1 more source

Totally real submanifolds in a complex projective space

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1999
In this paper, we establish the following result: Let M be an n-dimensional complete totally real minimal submanifold immersed in CPn with Ricci curvature bounded from below.
Liu Ximin
doaj   +1 more source

Submanifolds of Euclidean space with parallel mean curvature vector

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1991
The object of the paper is to study some compact submanifolds in the Euclidean space Rn whose mean curvature vector is parallel in the normal bundle.
Tahsin Ghazal, Sharief Deshmukh
doaj   +1 more source

Minimal Maslov number of R-spaces canonically embedded in Einstein-Kähler C-spaces

open access: yesComplex Manifolds, 2019
An R-space is a compact homogeneous space obtained as an orbit of the isotropy representation of a Riemannian symmetric space. It is known that each R-space has the canonical embedding into a Kähler C-space as a real form, and thus a compact embedded ...
Ohnita Yoshihiro
doaj   +1 more source

A Comprehensive Survey on Parallel Submanifolds in Riemannian and Pseudo-Riemannian Manifolds

open access: yesAxioms, 2019
A submanifold of a Riemannian manifold is called a parallel submanifold if its second fundamental form is parallel with respect to the van der Waerden−Bortolotti connection.
Bang-Yen Chen
doaj   +1 more source

On Generic submanifolds of a locally conformal Kahler manifold with parallel canonical structures

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1995
The study of CR-submanifolds of a Kähler manifold was initiated by Bejancu [1]. Since then many papers have appeared on CR-submanifolds of a Kähler manifold.
M. Hasan shahid, A. Sharfuddin
doaj   +1 more source

Optimal Inequalities Characterizing Totally Real Submanifolds in Quaternionic Space Form

open access: yesMathematics
In the present paper, we investigate some pinching inequalities on the scalar curvature of a totally real submanifold in quaternionic space form that leads to a topological conclusion of the submanifold. In addition, we construct another inequality which
Fatimah Alghamdi, Akram Ali
doaj   +1 more source

Complex Monge–Ampère equations and totally real submanifolds

open access: yesAdvances in Mathematics, 2010
We study the Dirichlet problem for complex Monge-Ampere equations in Hermitian manifolds with general (non-pseudoconvex) boundary. Our main result extends the classical theorem of Caffarelli, Kohn, Nirenberg and Spruck in the flat case. We also consider the equation on compact manifolds without boundary, attempting to generalize Yau's theorems in the ...
Guan, Bo, Li, Qun
openaire   +3 more sources

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