Results 11 to 20 of about 498 (49)

Locally decomposable golden Riemannian tangent bundles with Cheeger-Gromoll metric

, 2016
In this paper we obtain a condition for the tangent bundle .TM; Q J ; Q g/ to be locally decomposable Golden Riemannian tangent bundle, where Q J is the Golden structure on TM and Q g is the Cheeger-Gromoll metric. 2010 Mathematics Subject Classification:
A. Kazan, H. Karadağ
semanticscholar   +1 more source

Strongly pseudo-convex CR space forms

Complex Manifolds, 2019
For a contact manifold, we study a strongly pseudo-convex CR space form with constant holomorphic sectional curvature for the Tanaka-Webster connection.
Cho Jong Taek
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Contact metric manifolds with large automorphism group and (κ, µ)-spaces

Complex Manifolds, 2019
We discuss the classifiation of simply connected, complete (κ, µ)-spaces from the point of view of homogeneous spaces. In particular, we exhibit new models of (κ, µ)-spaces having Boeckx invariant -1.
Lotta Antonio
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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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Geometry of 3-Dimensional Trans-Sasakaian Manifolds

, 2014
In this paper, we obtain some sufficient conditions for a 3-dimensional compact trans-Sasakian manifold of type (α, β) to be homothetic to a Sasakian manifold.
Sharief Deshmukh
semanticscholar   +1 more source

Notes on Ricci solitons in $f$-cosymplectic manifolds [PDF]

, 2017
The purpose of this article is to study an $f$-cosymplectic manifold $M$ admitting Ricci solitons. Here we consider mainly two classes of Ricci solitons on $f$-cosymplectic manifolds. One is the class of contact Ricci solitons.
Chen, Xiaomin
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Virtual Legendrian Isotopy [PDF]

, 2014
An elementary stabilization of a Legendrian link $L$ in the spherical cotangent bundle $ST^*M$ of a surface $M$ is a surgery that results in attaching a handle to $M$ along two discs away from the image in $M$ of the projection of the link $L$. A virtual
Chernov, V., Sadykov, R.
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D-Homothetically Deformed Kenmotsu Metric as a Ricci Soliton

Annales Mathematicae Silesianae, 2019
In this paper we study the nature of Ricci solitons in D-homo-thetically deformed Kenmotsu manifolds. We prove that η -Einstein Kenmotsu metric as a Ricci soliton remains η -Einstein under D-homothetic deformation and the scalar curvature remains ...
Kumar D.L. Kiran, Nagaraja H.G., Venu K.
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Sasakian metric as a Ricci soliton and related results [PDF]

, 2013
We prove the following results: (i) A Sasakian metric as a non-trivial Ricci soliton is null $\eta$-Einstein, and expanding. Such a characterization permits to identify the Sasakian metric on the Heisenberg group $\mathcal{H}^{2n+1}$ as an explicit ...
Ghosh, Amalendu, Sharma, Ramesh
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Gradient Ricci Soliton in Kenmotsu Manifold

, 2014
In this paper we have found that if a Kenmotsu manifold with a Killing vector field satisfies gradient Ricci soliton equation then the smooth function is either constant or is orthogonal to the Killing vector field.
Nirabhra Basu, A. Bhattacharyya
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