Results 21 to 30 of about 303 (87)

On 3-Dimensional (ε,δ)-Trans-Sasakian Structure [PDF]

open access: yes, 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
core   +1 more source

A note on pseudoparallel submanifolds of Lorentzian para-Kenmotsu manifolds

open access: yesFilomat, 2023
In this article, pseudoparallel submanifolds for Lorentzian para-Kenmotsu manifolds are investigated. The Lorentzian para-Kenmotsu manifold is considered on the W1?curvature tensor. Submanifolds of these manifolds with properties such as W1?pseudoparallel, W1?2 pseudoparallel, W1?Ricci generalized pseudoparallel, and W1 ?
Mert, Tuğba, Atçeken, Mehmet
openaire   +4 more sources

Ricci solitons in three-dimensional paracontact geometry [PDF]

open access: yes, 2014
We completely describe paracontact metric three-manifolds whose Reeb vector field satisfies the Ricci soliton equation. While contact Riemannian (or Lorentz\-ian) Ricci solitons are necessarily trivial, that is, $K$-contact and Einstein, the paracontact ...
Calvaruso, Giovanni, Perrone, Antonella
core   +1 more source

The Schouten-van Kampen affine connection adapted to an almost (para) contact metric structure

open access: yes, 2013
We study the Schouten-van Kampen connection associated to an almost contact or paracontact metric structure. With the help of such a connection, some classes of almost (para) contact metric manifolds are characterized.
Olszak, Zbigniew
core   +1 more source

A neutral relation between metallic structure and almost quadratic {\phi}-structure

open access: yes, 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
core   +1 more source

On para-Kenmotsu manifolds

open access: yesFilomat, 2018
In this paper we study para-Kenmotsu manifolds. We characterize this manifolds by tensor equations and study their properties. We are devoted to a study of ?-Einstein manifolds. We show that a locally conformally flat para-Kenmotsu manifold is a space of constant negative sectional curvature -1 and we prove that if a para-Kenmotsu manifold ...
openaire   +3 more sources

Slant curves in 3-dimensional normal almost paracontact metric manifolds

open access: yes, 2012
The presented paper is devoted to study the curvature and torsion of slant Frenet curves in 3-dimensional normal almost paracontact metric manifolds. Moreover, in this class of manifolds, properties of non- Frenet slant curves (with null tangents or null
Wełyczko, Joanna
core   +1 more source

LP-Kenmotsu Manifolds Admitting Bach Almost Solitons

open access: yesUniversal Journal of Mathematics and Applications
For a Lorentzian para-Kenmotsu manifold of dimension $m$ (briefly, ${(LPK)_{m}}$) admitting Bach almost soliton $(g,\zeta,\lambda)$, we explored the characteristics of the norm of Ricci operator. Besides, we gave the necessary condition for ${(LPK)_{m}}
Mohd Bilal   +4 more
doaj   +1 more source

On generalized projective curvature tensor of para-Kenmotsu manifolds

open access: yesMiskolc Mathematical Notes, 2023
Summary: The object of the present paper is to generalize projective curvature tensor of para-Kenmotsu manifold with the help of a new generalized (0,2) symmetric tensor \(\mathcal{Z}\) introduced by \textit{C. A. Mantica} and \textit{Y. J. Suh} [Int. J. Geom. Methods Mod. Phys. 9, No. 1, 1250004, 21 p. (2012; Zbl 1244.53019)].
Raghuwanshi, Teerathram   +3 more
openaire   +2 more sources

On (N(k),ξ)-semi-Riemannian 3-manifolds. [PDF]

open access: yes, 2014
The object of the present paper is to study 3-dimensional (N(k), ξ)-semiRiemannian manifolds. We study (N(k), ξ)-semi-Riemannian 3-manifolds which are Ricci-semi-symmetric, locally ϕ-symmetric and have η-parallel Ricci ...
Nagaraja, H.G.   +2 more
core  

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