Results 51 to 60 of about 130 (98)

On Lorentzian Para-Sasakian Manifolds Satisfying W2- Curvature Tensor

open access: yesIOSR Journal of Mathematics, 2014
The object of the present paper is to study some properties of W2curvature tensor in an Lorentzian para-Sasakian manifolds.
Venkatesha Venkatesha   +2 more
openaire   +1 more source

Harmonic (p, q)‐Curves in Trans‐Sasakian and Normal Almost Paracontact Metric Manifolds

open access: yesJournal of Mathematics, Volume 2025, Issue 1, 2025.
In this paper, we give some characterizations about biharmonic, f‐harmonic, and f‐biharmonic (p, q)‐curves in 3‐dimensional trans‐Sasakian and normal almost paracontact metric manifolds. The (p, q)‐curves are considered as generalizations of magnetic curves.
Murat Altunbaş, B. B. Upadhyay
wiley   +1 more source

Geometric Classifications of Perfect Fluid Space‐Time Admit Conformal Ricci‐Bourguignon Solitons

open access: yesJournal of Mathematics, Volume 2024, Issue 1, 2024.
This paper is dedicated to the study of the geometric composition of a perfect fluid space‐time with a conformal Ricci‐Bourguignon soliton, which is the extended version of the soliton to the Ricci‐Bourguignon flow. Here, we have delineated the conditions for conformal Ricci‐Bourguignon soliton to be expanding, steady, or shrinking.
Noura Alhouiti   +6 more
wiley   +1 more source

ALMOST CONFORMAL RICCI SOLITONS ON LP-SASAKIAN MANIFOLDS [PDF]

open access: yes
The object of the present paper is to classify almost conformal Ricci solitons on Lorentzian para-Sasakian manifolds. In this paper, we prove that such manifolds with infinitesimal contact vector field V is η-Einstein and the scalar curvature of the ...
Kar, Debabrata, Majhi, Pradip
core   +1 more source

Slant and pseudo-slant submanifolds in ${\rm LCS}$-manifolds [PDF]

open access: yes, 2013
summary:We show new results on when a pseudo-slant submanifold is a LCS-manifold. Necessary and sufficient conditions for a submanifold to be pseudo-slant are given.
Kumar Hui, Shyamal, Atçeken, Mehmet
core   +1 more source

Quasi Conformal Curvature Tensor on a Lorentzian Para-Sasakian Manifold

open access: yesJournal of the Tensor Society, 2009
In This paper, we consider quasi-conformally flat, quasi-conformally conservative and -quasi conformally flat Lorentzian para-sasakian manifold. It has also been proved that an Einstein Lorentzian para-sasakian manifold satisfying the relation R(X, Y). = 0, where is a quasi-conformal curvature tensor is locally isometric with a unit sphere.
Anjana Singh, Amit Prakash
openaire   +1 more source

CR-submanifolds of Some Lorentzian Manifolds and K-manifolds

open access: yes, 2021
In this paper I have studied about CR(Cauchy-Riemann)-submanifolds of Lorentzian Concircular Structure manifold ((LCS)n-manifold), Lorentzian Para-Sasakian(LP)-cosymplectic manifold, S-manifold and Generalized Kenmotsu (GKM) manifold.
Karmakar, Payel
core  

m - projective curvature tensor on a Lorentzian para – Sasakian manifolds

open access: yesIOSR Journal of Mathematics, 2013
, = , + , , = ( ), , = , , , = ,
openaire   +1 more source

Cones over pseudo-Riemannian manifolds and their holonomy

open access: yes, 2009
Copyright © 2009 Walter de GruyterBy a classical theorem of Gallot (1979), a Riemannian cone over a complete Riemannian manifold is either flat or has irreducible holonomy. We consider metric cones with reducible holonomy over pseudo-Riemannian manifolds.
Alekseevsky, D.   +3 more
core   +1 more source

Biharmonic curves in Lorentzian Para-Sasakian manifolds

open access: yes, 2010
In this paper we give necessary and sucient conditions for space- like and timelike curves in a conformally at, quasi conformally at and conformally symmetric 4-dimensional Lorentzian Para-Sasakian (LP-Sasakian) manifold to be proper biharmonic. Also, we
Husna Zayadi
core  

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