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4 papers · 2 filters
Minimal Length, Friedmann Equations and Maximum Density
Adel Awad, Ahmed Farag Ali
Inspired by Jacobson's thermodynamic approach[gr-qc/9504004], Cai et al [hep-th/0501055,hep-th/0609128] have shown the emergence of Friedmann equations from the first law of thermo…
Pure Geometric Field Theory: Description of Gravity and Material Distribution
M. I. Wanas, Nabil L. Youssef, W. El Hanafy
A field theory is constructed in the context of parameterized absolute parallelism geometry. The theory is shown to be a pure gravity one. It is capable of describing the gravitati…
Regularization of gravity theories and local Lorentz transformation
G. G. L. Nashed
We regularized the field equations of gravity theories such that the effect of Local Lorentz Transformation (LLT), in the case of spherical symmetry, is removed. A "general…
A Built-in Inflation in the -Cosmology
G. G. L. Nashed, W. El Hanafy
In the present work we derive an exact solution of an isotropic and homogeneous Universe governed by gravity. We show how the torsion contribution to the FRW cosmology can p…