Results 41 to 50 of about 1,301 (144)

Parallel mean curvature surfaces in four-dimensional homogeneous spaces [PDF]

open access: yes, 2017
We survey different classification results for surfaces with parallel mean curvature immersed into some Riemannian homogeneous four-manifolds, including real and complex space forms, and product spaces.
Manzano, José M.   +2 more
core   +1 more source

Some submanifolds of generalized Kenmotsu manifolds

open access: yesGulf Journal of Mathematics, 2022
In this paper, invariant submanifolds of a generalized Kenmotsu manifold are studied and given some properties. An example is constructed for an invariant submanifold of a generalized Kenmotsu manifold. In addition, integrabilities of invariant distribution is investigated, and some theorems are given related to curvature tensor and the second ...
Vanli A.T., Sari R.
openaire   +2 more sources

A Note on LP-Kenmotsu Manifolds Admitting Conformal Ricci-Yamabe Solitons

open access: yesInternational Journal of Analysis and Applications, 2023
In the current note, we study Lorentzian para-Kenmotsu (in brief, LP-Kenmotsu) manifolds admitting conformal Ricci-Yamabe solitons (CRYS) and gradient conformal Ricci-Yamabe soliton (gradient CRYS).
Mobin Ahmad   +2 more
doaj   +1 more source

Index of quasi-conformally symmetric semi-Riemannian manifolds [PDF]

open access: yes, 2012
We find the index of $\widetilde{\nabla}$-quasi-conformally symmetric and $\widetilde{\nabla}$-concircularly symmetric semi-Riemannian manifolds, where $\widetilde{\nabla}$ is metric ...
Gupta, Punam   +2 more
core   +3 more sources

Study of Kenmotsu manifolds with semi-symmetric metric connection

open access: yesUniversal Journal of Mathematics and Applications, 2018
The present paper deals with the study of Kenmotsu manifolds equipped with a semi-symmetric metric connection. The properties of $\eta-$parallel Ricci tensor, globally symmetric and $\phi-$symmetric Kenmotsu manifolds with the semi-symmetric metric ...
Sudhakar Chaubey, Sunil Kr Yadav
doaj   +1 more source

A Study on Ricci Solitons in Kenmotsu Manifolds [PDF]

open access: yesISRN Geometry, 2013
We study and obtain results on Ricci solitons in Kenmotsu manifolds satisfying , , , and , where and are C-Bochner and pseudo-projective curvature tensor.
Bagewadi, C. S.   +2 more
openaire   +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 nearly Kenmotsu manifolds

open access: yesTURKISH JOURNAL OF MATHEMATICS, 2013
We prove that on a nearly Kenmotsu manifold a second-order symmetric closed recurrent tensor is a multiple of the associated metric tensor. We then find the necessary condition under which a vector field on a nearly Kenmotsu manifold will be a strict contact or Killing vector field.
Behzad NAJAFI   +1 more
openaire   +1 more source

On an (ε,δ)-trans-Sasakian structure; pp. 20–28 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2012
In this paper we investigate (ε,δ)-trans-Sasakian manifolds which generalize the notion of (ε)-Sasakian and (ε)-Kenmotsu manifolds. We prove the existence of such a structure by an example and we consider φ-recurrent, pseudo-projectively flat and ...
Halammanavar G. Nagaraja   +2 more
doaj   +1 more source

∗-η-Ricci Soliton and Gradient Almost ∗-η-Ricci Soliton Within the Framework of Para-Kenmotsu Manifolds

open access: yesFrontiers in Physics, 2022
The goal of the present study is to study the ∗-η-Ricci soliton and gradient almost ∗-η-Ricci soliton within the framework of para-Kenmotsu manifolds as a characterization of Einstein metrics.
Santu Dey, Nasser Bin Turki
doaj   +1 more source

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