Affiliation: | 1.Department of Mathematics, Quaid-I-Azam University, Islamabad, 45320, Pakistan ;2.NUTECH School of Applied Sciences and Humanities, National University of Technology, Islamabad, 44000, Pakistan ;3.Nonlinear Analysis and Applied Mathematics (NAAM) Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah, 21589, Saudi Arabia ; |