4 papers
Teleparallel Energy-Momentum Distribution of Spatially Homogeneous Rotating Spacetimes
M. Sharif, M. Jamil Amir
The energy-momentum distribution of spatially homogeneous rotating spacetimes in the context of teleparallel theory of gravity is investigated. For this purpose, we use the telepar…
Complex Wave Numbers in the Vicinity of the Schwarzschild Event Horizon
M. Sharif, Umber Sheikh
This paper is devoted to investigate the cold plasma wave properties outside the event horizon of the Schwarzschild planar analogue. The dispersion relations are obtained from the…
Matter Collineations of Some Static Spherically Symmetric Spacetimes
M. Sharif
We derive matter collineations for some static spherically symmetric spacetimes and compare the results with Killing, Ricci and Curvature symmetries. We conclude that matter and Ri…
Momentum and Angular Momentum in the Expanding Universe
M. Sharif
A new approach has been used to evaluate the momentum and angular momentum of the isotropic and homogeneous cosmological models. It is shown that the results obtained for momentum…