43 citations · 279 across the 20 of their papers we have counts for
21 papers
Conformal Solutions of Static Plane Symmetric Cosmological Models in Cases of a Perfect Fluid and a Cosmic String Cloud
Ragab M. Gad, Awatif Al-Jedani, Shahad T. Alsulami
In this work, we obtained exact solutions of Einstein's field equations for plane symmetric cosmological models by assuming that thy admit conformal motion. The space-time geometry…
Gravitational Energy in Van Stockum Space-Time
Ragab M Gad, H. A. Alharbi
The purpose of this paper is to illustrate the problem of energy and momentum distributions of Van Stockum space-time within the framework of two different theories of gravity, gen…
On Torsion Axial Vector and gravitational Energy in Lewis-Papapetrou Space-Time in the Theory of Teleparallel Gravity
A. S. Alofi, Ragab M Gad
The teleparallel version of Lewis-Papapetrou space-time is investigated. For this space-time the true discussion of the geometric and physical properties is given. We show that the…
On Axially Symmetric Space-Times Admitting Homothetic Vector Fields in Lyra's Geometry
Ragab M. Gad, A. E. Al Mazrooei
This paper investigates axially symmetric space-times that admit a homothetic vector field based on Lyra's geometry. The cases when the displacement vector is a function of and…
Homothetic Motion in a Bianchi Type-I Model in Lyra Geometry
Ragab M. Gad
In this paper we study a homothetic vector field of a Bianchi type-I model based on Lyra geometry. The cases when a displacement vector is function of and when it is constant a…
Inhomogeneous Bianchi Type I Cosmological Model with Electromagnetic Field in Lyra Geometry
M. Abdel-Megied, Ragab M. Gad, E. A. Hegazy
We have investigated an inhomogeneous Bianchi type-I cosmological model with electromagnetic field based on Lyra geometry. A new class of exact solutions have been obtained by cons…