Results 11 to 20 of about 14,561,729 (295)

Totally real submanifolds of a complex space form

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1996
Totally real submanifolds of a complex space form are studied. In particular, totally real submanifolds of a complex number space with parallel mean curvature vector are classified.
U-Hang Ki, Young Ho Kim
doaj   +2 more sources

Real hypersurface of a complex space form [PDF]

open access: yesNew Trends in Mathematical Science, 2016
The purpose of the present paper is to give characterization of real hyper- surface of a complex space form. We find conditions for these hypersurfaces to be phi- symmetric and to have eta- parallel curvature tensor. Further we prove totally eta-umbilical real hypersurfaces of complex space forms have xi-parallel Ricci tensor and xi-parallel structure ...
NAGARAJA, H.G., SAVITRI SHASHIDAR, .
openaire   +3 more sources

A study on hypersurface of complex space form [PDF]

open access: yesActa et Commentationes Universitatis Tartuensis de Mathematica, 2013
We show that quasi-umbilical, generalized quasi-umbilical, super quasi-umbilical hypersurfaces of a complex space form are quasi-Einstein, mixed generalized quasi-Einstein and mixed super quasi-Einstein manifolds, respectively. We also prove that a Bochner at space of generalized complex space form is an Einstein manifold.
C. S. Bagewadi, M. C. Bharathi
openaire   +3 more sources

Symmetry properties of complex contact space form

open access: yes, 2021
In this paper, some symmetry conditions on complex contact space forms are studied. Definitions of pseudo-symmetry in the Deszcz sense and Ricci-pseudo-symmetry in complex contact manifolds are given. The authors show that a complex contact space form is semi-symmetric if and only if it is locally isometric to CP2n+1(4).
Vanlı, Aysel
core   +4 more sources

Positively curved complex submanifolds immersed in a complex space form [PDF]

open access: yesProceedings of the American Mathematical Society, 1978
The author gives the partial solution for the conjecture; a Kaehler submanifold in a complex space form of constant holomorphic sectional curvature 1 is totally geodesic if ever its holomorphic sectional curvature is greater than
Takehiro Itoh
openaire   +2 more sources

A certain tensor on real hypersurfaces in a nonflat complex space form [PDF]

open access: yes, 2020
summary:In a nonflat complex space form (namely, a complex projective space or a complex hyperbolic space), real hypersurfaces admit an almost contact metric structure $(\phi , \xi , \eta , g)$ induced from the ambient space.
Okumura, Kazuhiro
core   +1 more source

Ricci Curvature Inequalities for Skew CR-Warped Product Submanifolds in Complex Space Forms

open access: yesMathematics, 2020
The fundamental goal of this study was to achieve the Ricci curvature inequalities for a skew CR-warped product (SCR W-P) submanifold isometrically immersed in a complex space form (CSF) in the expressions of the squared norm of mean curvature vector and
Meraj Ali Khan, Ibrahim Aldayel
doaj   +1 more source

Characterization of Lagrangian Submanifolds by Geometric Inequalities in Complex Space Forms

open access: yesAdvances in Mathematical Physics, 2021
In this paper, we give an estimate of the first eigenvalue of the Laplace operator on a Lagrangian submanifold Mn minimally immersed in a complex space form.
Lamia Saeed Alqahtani
doaj   +1 more source

Sequential Design-Space Reduction and Its Application to Hull-Form Optimization

open access: yesJournal of Marine Science and Engineering, 2023
Hull-form optimization is a complex engineering problem. Owing to the several numerical simulations and complex design-performance spaces, hull-form optimization is considered an inefficient process, which makes determining the global optimum difficult ...
Zu-Yuan Liu   +4 more
doaj   +1 more source

Chen-Ricci Inequalities with a Quarter Symmetric Connection in Generalized Space Forms

open access: yesAdvances in Mathematical Physics, 2021
In this article, we obtain improved Chen-Ricci inequalities for submanifolds of generalized space forms with quarter-symmetric metric connection, with the help of which we completely characterized the Lagrangian submanifold in generalized complex space ...
Ali H. Al-Khaldi   +3 more
doaj   +1 more source

Home - About - Disclaimer - Privacy