Results 21 to 30 of about 1,920 (253)

SEMI-SLANT SUBMANIFOLDS OF T-MANIFOLDS

open access: yesDemonstratio Mathematica, 2006
\(T\)--manifolds are a generalization of cosymplectic manifolds whose study was introduced by \textit{D. E. Blair} [J. Differ. Geom. 4, 155--167 (1970; Zbl 0202.20903)]. Semi-slant submanifolds are a generalization of CR-submanifolds. As indicated by the title of this paper, the authors investigate semi-slant submanifolds of a \(T\)--manifold.
Khan, V. A., Khan, M. A.
openaire   +1 more source

Semi-slant Riemannian maps into almost Hermitian manifolds [PDF]

open access: yesCzechoslovak Mathematical Journal, 2014
The present paper introduces, characterizes and provides several examples of semi-slant Riemannian maps (SSRM) from Riemannian manifolds to almost Hermitian manifolds. This class of maps contains semi-slant immersions (therefore holomorphic immersions, totally real immersions, slant immersions), invariant Riemannian maps, anti-invariant Riemannian maps,
Park, Kwang-Soon, Şahin, Bayram
openaire   +2 more sources

Warped product semi-slant submanifolds in locally conformal Kaehler manifolds

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2017
In 1994, in [13], N. Papaghiuc introduced the notion of semi-slant submanifold in a Hermitian manifold which is a generalization of CR- and slant-submanifolds. In particular, he considered this submanifold in Kaehlerian manifolds, [13]. Then, in 2007, V.
Koji Matsumoto
doaj   +1 more source

Neutral Slant Submanifolds of a Para-Kähler Manifold

open access: yesAbstract and Applied Analysis, 2013
We define and study both neutral slant and semineutral slant submanifolds of an almost para-Hermitian manifold and, in particular, of a para-Kähler manifold. We give characterization theorems for neutral slant and semi-neutral slant submanifolds. We also
Yılmaz Gündüzalp
doaj   +1 more source

Bi-Slant Submanifolds of Para Hermitian Manifolds

open access: yesMathematics, 2019
In this paper, we introduce the notion of bi-slant submanifolds of a para Hermitian manifold. They naturally englobe CR, semi-slant, and hemi-slant submanifolds. We study their first properties and present a whole gallery of examples.
Pablo Alegre, Alfonso Carriazo
doaj   +1 more source

An Optimal Inequality for the Normal Scalar Curvature in Metallic Riemannian Space Forms

open access: yesMathematics, 2023
In this paper, we prove the DDVV conjecture for a slant submanifold in metallic Riemannian space forms with the semi-symmetric metric connection. The equality case of the derived inequality is discussed, and some special cases of the inequality are given.
Siraj Uddin   +2 more
doaj   +1 more source

Inequalities for the Class of Warped Product Submanifold of Para-Cosymplectic Manifolds

open access: yesAdvances in Mathematical Physics, 2022
The aim of this paper is to study the warped product pointwise semislant submanifolds in the para-cosymplectic manifold with the semi-Riemannian metric.
Fatemah Mofarreh   +4 more
doaj   +1 more source

Warped product semi-slant submanifolds in locally conformal Kaehler manifolds II

open access: yesPracì Mìžnarodnogo Geometričnogo Centru, 2018
In 1994 N.~Papaghiuc introduced the notion of semi-slant submanifold in a Hermitian manifold which is a generalization of $CR$- and slant-submanifolds, \cite{MR0353212}, \cite{MR760392}.
Koji Matsumoto
doaj   +1 more source

Inequality for Ricci curvature of certain submanifolds in locally conformal almost cosymplectic manifolds

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2005
We establish inequalities between the Ricci curvature and the squared mean curvature, and also between the k-Ricci curvature and the scalar curvature for a slant, semi-slant, and bi-slant submanifold in a locally conformal almost cosymplectic manifold ...
Dae Won Yoon
doaj   +1 more source

On semi-slant $ξ^\perp-$Riemannian submersions

open access: yes, 2017
15 ...
Akyol, Mehmet Akif, Sarı, Ramazan
openaire   +2 more sources

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