Results 61 to 70 of about 313 (89)

F($\mathfrak{R},\mathfrak{T}$)-Gravity with Anisotropic Fluid Admitting Hyperbolic Ricci Solitons with Torse-Forming Vector Field

Mathematics
This study is dedicated to a separable F(R,T)-gravity related to the anisotropic matter to extract the equation of state for F(R,T)-gravity. In this research, we offer insight into calculating the density and pressure in the phantom barrier, stiff fluid,
Mohd Danish Siddiqi, Fatemah Mofarreh
doaj   +1 more source

*-Ricci-Yamabe soliton on Kenmotsu manifold with torse forming potential vector field

Filomat
The goal of the present paper is to deliberate *-Ricci-Yamabe soliton, whose potential vector field is torse-forming on the Kenmotsu manifold. Here, we have shown the nature of the soliton and found the scalar curvature when the manifold admitting *-Ricci-Yamabe soliton on the Kenmotsu manifold.
R RoySoumendu, Santu Dey, Ali Alkhaldi, Akram Ali, Arindam Bhattacharyya   +4 more
openaire   +1 more source

Ricci Solitons on Riemannian Hypersurfaces Generated by Torse-Forming Vector Fields in Riemannian and Lorentzian Manifolds

Axioms
In this paper, we examine torse-forming vector fields to characterize extrinsic spheres (that is, totally umbilical hypersurfaces with nonzero constant mean curvatures) in Riemannian and Lorentzian manifolds. First, we analyze the properties of these vector fields on Riemannian manifolds.
Norah Alshehri, Mohammed Guediri
openaire   +2 more sources

On tensor fields semiconjugated with torse-forming vector fields [PDF]

, 2005
summary:The paper deals with tensor fields which are semiconjugated with torse-forming vector fields.
Mikeš, Josef, Rachůnek, Lukáš
core  

On N(k)-Contact Metric Manifolds

Cubo, 2010
The object of the present paper is to study a type of contact metric manifolds, called contact metric manifolds admitting a non-null concircular and torse forming vector field.
A.A Shaikh, C.S Bagewadi
doaj  

Remarks on Einstein solitons with certain types of potential vector field

, 2021
We consider almost Einstein solitons $(V,\lambda)$ in a Riemannian manifold when $V$ is a gradient, a solenoidal or a concircular vector field. We explicitly express the function $\lambda$ by means of the gradient vector field $V$ and illustrate the ...
Blaga, Adara M., Latcu, Dan Radu
core  

On quasirecurrent manifolds [PDF]

summary:We introduce a type of Riemannian manifolds (namely, quasirecurrent manifold) and study its several geometric properties. Among others, we prove that the scalar curvature of such a manifold is constant, and that the manifold is Einstein under ...
Kim, Jaeman
core   +1 more source

On h-almost conformal η-Ricci-Bourguignon soliton in a perfect fluid spacetime [PDF]

The primary object of the paper is to study h-almost conformal η-Ricci-Bourguignon soliton in an almost pseudo-symmetric Lorentzian Kähler spacetime manifold when some different curvature tensors vanish identically.
Pahan, Sampa
core   +2 more sources

η-Ricci Soliton on 3-Dimensional f-Kenmotsu Manifolds [PDF]

, 2018
The object of the present paper is to carry out η-Ricci soliton on 3-dimensional regularf-Kenmotsu manifold and we turn up some geometrical results.
Chaubey, S. K., Hui, S. K., Yadav, S. K.
core   +1 more source

On Kaehlerian torse-forming vector fields [PDF]

Kodai Mathematical Journal, 1979
openaire   +3 more sources