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相关论文: Geometry of PR-warped products in para-Kaehler man…

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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…

微分几何 · 数学 2014-04-28 Siraj Uddin , Falleh R. Al-Solamy , V. A. Khan , Cenap Ozel

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…

微分几何 · 数学 2020-11-10 Bang-Yen Chen , Fatimah Alghamdi , Siraj Uddin

In this paper, we study a new generalized class of $\mathcal{P}\mathcal{R}$-warped product submanifolds under the name $\mathcal{P}\mathcal{R}$-pseudo-slant warped product submanifolds in para-K\"{a}hler manifolds $\bar{M}$. The results of…

微分几何 · 数学 2024-08-09 A. Sharma , S. K. Srivastava

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…

微分几何 · 数学 2013-12-12 Bayram Sahin

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…

微分几何 · 数学 2017-01-11 Hakan Mete Taştan

We introduce sequential warped product submanifolds of Kaehler manifolds, provide examples and establish Chen's inequality for such submanifolds. The equality case is also studied. Moreover, by inspiring Lawson and Simons's integral…

微分几何 · 数学 2020-06-05 Bayram Sahin

We study bi-warped product submanifolds of nearly Kaehler manifolds which are the natural extension of warped products. We prove that every bi-warped product submanifold of the form $M=M_T\times_{f_1}\! M_\perp\times_{f_2}\! M_\theta$ in a…

微分几何 · 数学 2020-03-18 Siraj Uddin , Bang-Yen Chen , Awatif AL-Jedani , Azeb Alghanemi

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…

微分几何 · 数学 2020-04-01 Siraj Uddin , Khushwant Singh , Fatimah Alghamdi , Cengizhan Murathan

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…

微分几何 · 数学 2023-09-15 Mehraj Ahmad Lone , Prince Majeed

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…

微分几何 · 数学 2020-01-07 Siraj Uddin

The warped product $N_1\times_f N_2$ of two Riemannian manifolds $(N_1,g_1)$ and $(N_2,g_2)$ is the product manifold $N_1\times N_2$ equipped with the warped product metric $g=g_1+f^2 g_2$, where $f$ is a positive function on $N_1$. Warped…

微分几何 · 数学 2018-07-02 Bang-Yen Chen

In this paper, we study warped products of contact skew-CR submanifolds, called contact skew CR-warped products. We establish an inequality for the squared norm of the second fundamental form in terms of the warping function and the slant…

微分几何 · 数学 2020-10-06 Siraj Uddin , Falleh R. Al-Solamy , Fatimah Alghamdi , Reem Al-Ghefari

A product of K\"ahler manifolds also carries a K\"ahler metric. In this short note we would like to study the product of generalized $p-$K\"ahler manifolds, compact or not. The results we get extend the known results (balanced, SKT, sG…

微分几何 · 数学 2017-02-16 Lucia Alessandrini

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…

微分几何 · 数学 2012-07-11 Khushwant Singh , S. S. Bhatia

The purpose of this paper is to study pointwise pseudo-slant warped product submanifolds of a K\"{a}hler manifold $\widetilde{M}$. We derive the conditions of integrability and totally geodesic foliation for the distributions allied to the…

微分几何 · 数学 2017-01-19 S. K. Srivastava , A. Sharma

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…

微分几何 · 数学 2017-08-23 Kwok-Kun Kwong

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…

微分几何 · 数学 2017-11-21 Bang-Yen Chen , Siraj Uddin

B.-Y. Chen initiated the study of warped product submanifolds in his fundamental seminal papers \cite{C1,C2,C2.1}. In this paper, we study contact CR-warped product submanifolds of cosymplectic space forms and prove an optimal inequality by…

微分几何 · 数学 2019-10-03 Falleh R. Al-Solamy , Siraj Uddin

The purpose of this paper is to study $\mathcal{P}\mathcal{R}$-semi-invariant warped product submanifolds of a paracosymplectic manifold $\widetilde{M}$. We prove that the distributions associated with the definition of…

微分几何 · 数学 2017-01-19 S. K. Srivastava , A. Sharma

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…

微分几何 · 数学 2019-10-03 Siraj Uddin , Abdulqader Mustafa , Bernardine R. Wong , Cenap Ozel
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