Results 11 to 20 of about 34,283 (120)

On torse-forming vector fields and biharmonic hypersurfaces in Riemannian manifolds [PDF]

open access: green, 2023
In this paper, we give some properties of biharmonic hypersurface in Riemannian manifold has a torse-forming vector field.
Ahmed Mohammed Cherif
core   +4 more sources

MYLLER CONFIGURATIONS IN FINSLER SPACES. APPLICATIONS TO THE STUDY OF SUBSPACES AND OF TORSE FORMING VECTOR FIELDS [PDF]

open access: bronzeJournal of the Korean Mathematical Society, 2008
In this paper we define a Myller configuration in a Finsler space and use some special configurations to obtain results about Finsler subspaces. Let F n =(M, F ) be a Finsler space, with M a real, differentiable manifold of dimension n. Using the pull back bundle (π∗TM, π, TM) of the tangent bundle (TM, π, M) by the mapping π = π/TM and the Cartan ...
O. Constantinescu
semanticscholar   +4 more sources

On an Anti-Torqued Vector Field on Riemannian Manifolds

open access: yesMathematics, 2021
A torqued vector field ξ is a torse-forming vector field on a Riemannian manifold that is orthogonal to the dual vector field of the 1-form in the definition of torse-forming vector field. In this paper, we introduce an anti-torqued vector field which is
Sharief Deshmukh   +2 more
doaj   +2 more sources

Reeb vector field of almost contact metric structure as affine motion

open access: yesДифференциальная геометрия многообразий фигур, 2022
Smooth manifold with almost contact metric structure (i. e., almost contact metric manifold) was considered in this paper. We used a modern version of Cartan’s method of external forms to conduct our study.
L.A. Ignatochkina
doaj   +2 more sources

Conformal Yamabe soliton and * -Yamabe soliton with torse forming potential vector field [PDF]

open access: green, 2021
The goal of this paper is to study conformal Yamabe soliton and $*$-Yamabe soliton, whose potential vector field is torse forming. Here, we have characterized conformal Yamabe soliton admitting potential vector field as torse forming with respect to Riemannian connection, semi-symmetric metric connection and projective semi-symmetric connection on ...
Roy, Soumendu   +2 more
openaire   +4 more sources

Twisted Lorentzian manifolds: a characterization with torse-forming time-like unit vectors [PDF]

open access: yesGeneral Relativity and Gravitation, 2016
Robertson–Walker and generalized Robertson–Walker spacetimes may be characterized by the existence of a time-like unit torse-forming vector field, with other constrains.
C. Mantica, L. Molinari
semanticscholar   +6 more sources

A Note on LP-Sasakian Manifolds with Almost Quasi-Yamabe Solitons

open access: yesJournal of Mathematics, 2021
We categorize almost quasi-Yamabe solitons on LP-Sasakian manifolds and their CR-submanifolds whose potential vector field is torse-forming, admitting a generalized symmetric metric connection of type α,β.
Sunil Kumar Yadav   +2 more
doaj   +2 more sources

Imperfect Fluid Generalized Robertson Walker Spacetime Admitting Ricci-Yamabe Metric

open access: yesAdvances in Mathematical Physics, 2021
In the present paper, we investigate the nature of Ricci-Yamabe soliton on an imperfect fluid generalized Robertson-Walker spacetime with a torse-forming vector field ξ.
Ali H. Alkhaldi   +3 more
doaj   +2 more sources

On torse-forming vector fields and their applications in submanifold theory

open access: diamondFilomat, 2023
The present article utilises a property of torse-forming vector fields to deduce some criteria for invariant submanifolds of Riemannian manifolds to be totally geodesic. Certain features of submanifolds of Riemannian manifolds as ?-Ricci Bourguignon soliton have been developed.
Avijit Sarkar, Uday De, Suparna Halder
openaire   +3 more sources

ON SOME RIEMANNIAN MANIFOLDS ADMITTING TORSE-FORMING VECTOR FIELDS [PDF]

open access: hybridDemonstratio Mathematica, 1985
The following theorem is proved: If in a Riemannian manifold (M,g) with dim \(M\geq 4\) the covariant derivative \(R_{ij,k}\) of the Ricci tensor is symmetric in all indices, if \(R_{ij}[\ell m]=0\), and if there exists a vector field \(v_ i\) such that \(v_{i,j}=Fg_{ij}+A_ jv_ i\) with a certain scalar field F and a vector field \(A_ j\) (i.e.
Jan Kowolik
openaire   +3 more sources

Home - About - Disclaimer - Privacy