English
Related papers

Related papers: Sequential warped product submanifolds having fact…

200 papers

It is known that there exist no warped product semi-slant submanifolds in Kaehler manifolds \cite{Sahin}. Recently, Chen and Garay studied pointwise-slant submanifolds of almost Hermitian manifolds in \cite{CG} and obtained many new results…

Differential Geometry · Mathematics 2013-12-12 Bayram Sahin

In this paper, we study the geometry of pointwise semi-slant warped products in a locally conformal Kaehler manifold. In particular, we obtain several results which extend Chen's inequality for CR-warped product submanifolds in Kaehler…

Differential Geometry · Mathematics 2020-11-10 Bang-Yen Chen , Fatimah Alghamdi , Siraj Uddin

Non-existence of warped product semi-slant submanifolds of Kaehler manifolds was proved in [17], it is interesting to find their existence. In this paper, we prove the existence of warped product semi-slant submanifolds of nearly Kaehler…

Differential Geometry · Mathematics 2014-04-28 Siraj Uddin , Falleh R. Al-Solamy , V. A. Khan , Cenap Ozel

In this paper, the first Chen inequality is proved for CR-warped product submanifolds in complex space forms. This inequality involves intrinsic invariants (a leaf-wise $\delta$-invariant and the sectional curvature) controlled by an…

Differential Geometry · Mathematics 2026-05-20 Abdulqader Mustafa , Monika Sati , Uday Chand De , Cenap Ozel , Alexander Pigazzini

In this paper, we introduce the notion of warped product quasi bi-slant submanifolds in Kaehler manifolds. We have shown that every warped product quasi bi-slant submanifold in a Kaehler manifold is either a Riemannian product or a warped…

Differential Geometry · Mathematics 2023-09-15 Mehraj Ahmad Lone , Prince Majeed

We study immersions of pointwise bi-slant submanifolds of locally conformal K\"ahler manifolds as warped products. In particular, we establish characterisation theorem for a pointwise bi-slant submanifold of a locally conformal K\"ahler…

General Mathematics · Mathematics 2023-01-16 Umar Mohd Khan , Viqar Azam Khan

Warped product manifolds have been studied for a long period of time. In contrast, the study of warped product submanifolds from extrinsic point of view was initiated by the first author around the beginning of this century in [7, 8]. Since…

Differential Geometry · Mathematics 2017-11-21 Bang-Yen Chen , Siraj Uddin

n this paper, we obtain a geometric inequality between the length of the second fundamental form and the length of Lee form in terms of the warping function for a CR-warped product submanifold in a locally conformal Kaehler space form. The…

Differential Geometry · Mathematics 2020-04-01 Siraj Uddin , Khushwant Singh , Fatimah Alghamdi , Cengizhan Murathan

In this paper, the first Chen inequality is proved for general warped product submanifolds in Riemannian space forms, this inequality involves intrinsic invariants ($\delta$-invariant and sectional curvature) controlled by an extrinsic one…

Differential Geometry · Mathematics 2022-09-07 Abdulqader Mustafa , Cenap Ozel , Alexander Pigazzini , Ramandeep Kaur , Gauree Shanker

We introduce warped product skew semi-invariant submanifolds of order $1$ of a locally product Riemannian manifold. We give a necessary and sufficient condition for skew semi-invariant submanifold of order 1 to be a locally warped product.…

Differential Geometry · Mathematics 2014-06-11 Hakan Mete Taştan

Recently, M. Atcken studied Contact CR-warped prod- uct submanifolds in cosymplectic space forms and established gen- eral sharp inequalities for CR-warped products in a cosymplectic manifold [1]. In the present paper, we obtain an…

Differential Geometry · Mathematics 2012-07-11 Khushwant Singh , S. S. Bhatia

In this paper, we initiate the study of $\p R$-warped products in para-K\"ahler manifolds and prove some fundamental results on such submanifolds. In particular, we establish a general optimal inequality for $\p R$-warped products in…

Differential Geometry · Mathematics 2011-06-21 Bang-Yen Chen , Marian Ioan Munteanu

We prove some isoperimetric type inequalities in warped product manifolds, or more generally, multiply warped product manifolds. We then relate them to inequalities involving the higher order mean-curvature integrals. We also apply our…

Differential Geometry · Mathematics 2017-08-23 Kwok-Kun Kwong

We study biwarped product submanifolds which are special cases of multiply warped product submanifolds in K\"{a}hler manifolds. We observe the non-existence of such submanifolds under some circumstances. We show that there exists a…

Differential Geometry · Mathematics 2017-01-11 Hakan Mete Taştan

The object of the present paper is to study the characterization of warped product manifolds satisfying some pseudosymmetric type conditions, especially, due to projective curvature tensor. For this purpose we consider a warped product…

Differential Geometry · Mathematics 2016-12-13 Absos Ali Shaikh , Haradhan Kundu

B. Y. Chen established sharp inequalities between certain Riemannian invariants and the squared mean curvature for submanifolds in real space form as well as in complex space form. In this paper we generalize Chen inequalities for…

Differential Geometry · Mathematics 2016-04-27 Mehraj Ahmad Lone , Mohammad Jamali , Mohammad Hasan Shahid

Recently, we have shown that there do not exist the warped product semi-slant submanifolds of cosymplectic manifolds [10]. As nearly cosymplectic structure generalizes cosymplectic ones same as nearly Kaehler generalizes Kaehler structure…

Differential Geometry · Mathematics 2019-10-03 Siraj Uddin , Abdulqader Mustafa , Bernardine R. Wong , Cenap Ozel

The present paper deals with the study of warped product pointwise bi-slant submanifolds of Kenmotsu manifolds with an example. The characterization for such submanifold is also discussed. An inequality of such submanifold is obtained and…

Differential Geometry · Mathematics 2018-03-29 Shyamal Kumar Hui , Joydeb Roy , Tanumoy Pal

In this paper, we study semi-slant submanifolds and their warped products in Kenmotsu manifolds. The existence of such warped products in Kenmotsu manifolds is shown by an example and a characterization. A sharp relation is obtained as a…

Differential Geometry · Mathematics 2020-01-07 Siraj Uddin

We find the necessary conditions for a sequential warped product manifold to be a quasi-Einstein manifold. We also investigate the necessary and sufficient conditions for a sequential standard static space-time and a sequential generalized…

Differential Geometry · Mathematics 2021-04-28 Fatma Karaca , Cihan Ozgur
‹ Prev 1 2 3 10 Next ›