Results 1 to 10 of about 293 (42)
A basic inequality for submanifolds in a cosymplectic space form [PDF]
International Journal of Mathematics and Mathematical Sciences, Volume 2003, Issue 9, Page 539-547, 2003., 2002 For submanifolds tangent to the structure vector field in cosymplectic space forms, we establish a basic inequality between the main intrinsic invariants of the submanifold, namely its sectional curvature and scalar curvature on one side; and its main ...
Choi, Jaedong, Kim, Jeong-Sik
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Semi-invariant warped product submanifolds of cosymplectic manifolds
Journal of Inequalities and Applications, 2012 In this article, we obtain the necessary and sufficient conditions that the semi-invariant submanifold to be a locally warped product submanifold of invariant and anti-invariant submanifolds of a cosymplectic manifold in terms of canonical structures T ...
M. Khan, S. Uddin, R. Sachdeva
semanticscholar +2 more sources
Semi-invariant warped product submanifolds of almost contact manifolds
Journal of Inequalities and Applications, 2012 In this article, we have obtained necessary and sufficient conditions in terms of canonical structure F on a semi-invariant submanifold of an almost contact manifold under which the submanifold reduced to semi-invariant warped product submanifold ...
F. Al-Solamy, M. Khan
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Generalized Contact Bundles [PDF]
, 2016 In this Note, we propose a line bundle approach to odd-dimensional analogues of generalized complex structures. This new approach has three main advantages: (1) it encompasses all existing ones; (2) it elucidates the geometric meaning of the ...
Vitagliano, Luca, Wade, Aïssa
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The twistor space of a quaternionic contact manifold [PDF]
, 2010 We show that the CR structure on the twistor space of a quaternionic contact structure described by Biquard is normal if and only if the Ricci curvature of the Biquard connection commutes with the endomorphisms in the quaternionic structure of the ...
Davidov, Johann +2 more
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On 3-Dimensional (ε,δ)-Trans-Sasakian Structure [PDF]
, 2013 The object of present paper is to study 3-dimensional $(\varepsilon,\delta)$-trans-Sasakian manifold admitting Ricci solitons and $K$-torse forming vector fields.
Maralabhavi, Y.B. +2 more
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A Study of W2 - Curvature Tensor of a N(k) - Quasi Einstein Manifold
, 2015 In this paper, the study of W2 -curvature tensor in N(k) -quasi Einstein manifold satisfying W2(E,X).W2 = 0 is carried out. Mathematics subject is classification : 53C25, 53D10, 53D15.
M. Dwivedi
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ON WEAKLY $\phi$-RICCI SYMMETRIC KENMOTSU MANIFOLDS
, 2014 The object of the present paper is to introduce the notion of weakly φ-Ricci symmetric Kenmotsu manifolds and study characteristic properties of locally φ-Ricci symmetric and φ-recurrent spaces.
D. G. Prakasha, S. Hui, K. Vikas
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Contact boundaries of hypersurface singularities and of complex polynomials
, 2003 We survey some recent results concerning the behaviour of the contact structure defined on the boundary of a complex isolated hypersurface singularity or on the boundary at infinity of a complex polynomial.Comment: 8 pages; to be published in the ...
Caubel, C., Tibar, M.
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A neutral relation between metallic structure and almost quadratic {\phi}-structure
, 2018 In this paper, metallic structure and almost quadratic metric phi-structure are studied. Based on metallic (polynomial) Riemannian manifold, Kenmotsu quadratic metric manifold, cosymplectic quadratic metric manifold are defined and gave some examples ...
Erken, İrem Küpeli +3 more
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