Affiliation: | [1]Theoretical Plasma Physics Division, PINSTECH, P.O. Nilore Islamabad 44000, Pakistan [2]Department of Mathematics, Quaid-i-Azam University 45320 Islamabad 44000, Pakistan [3]Department of Mathematics, College of Science, King Saud University, P.O. Box. 2455, Riyadh 11451, Saudi Arabia |