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Effect of Spin-Torsion Interaction on Raychaudhuri Equation
M. I. Wanas, M. A. Bakry
Raychaudhuri equation is generalized in the parameterized absolute parallelism geometry. This version of absolute parallelism is more general than the conventional one. The general…
The Accelerating Expansion of the Universe and Torsion Energy
M. I. Wanas
In the present work, it is shown that the problem of the accelerating expansion of the Universe can be directly solved by applying Einstein geometrization philosophy in a wider geo…
An Ap-Structure with Finslerian Flavor: I
M. I. Wanas
A geometric structure (FAP-structure), having both absolute parallelism and Finsler properties, is constructed. The building blocks of this structures are assumed to be functions o…
On the Relation between Mass and Charge: A Pure Geometric Approach
M. I. Wanas
A new solution of the field equations of the generalized field theory, constructed by Mikhail and Wanas in 1977, has been obtained. The geometric structure used, in the present app…
Linear Connections and Curvature Tensors in the Geometry of Parallelizable Manifolds
Nabil L. Youssef, Amr M. Sid-Ahmed
In this paper we discuss curvature tensors in the context of Absolute Parallelism geometry. Different curvature tensors are expressed in a compact form in terms of the torsion tens…