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Spacetimes Admitting Concircular Curvature Tensor in f(R) Gravity
Faculty
Science
Year:
2022
Type of Publication:
ZU Hosted
Pages:
6
Authors:
Hassan Mostafa Metwally
Staff Zu Site
Abstract In Staff Site
Journal:
Frontiers in Physics Frontiers in Physics
Volume:
Keywords :
Spacetimes Admitting Concircular Curvature Tensor , f(R) Gravity
Abstract:
The main object of this paper is to investigate spacetimes admitting concircular curvature tensor in f(R) gravity theory. At first, concircularly flat and concircularly flat perfect fluid spacetimes in f(R) gravity are studied. In this case, the forms of the isotropic pressure p and the energy density σ are obtained. Next, some energy conditions are considered. Finally, perfect fluid spacetimes with divergence free concircular curvature tensor in f(R) gravity are studied; amongst many results, it is proved that if the energy-momentum tensor of such spacetimes is recurrent or bi-recurrent, then the Ricci tensor is semi-symmetric and hence these spacetime
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Hassan Mostafa Metwally, "On generalized projective P-curvature tensor", Elsevier, 2021
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