Affiliation: | 1. Nonlinear Analysis and Applied Mathematics (NAAM) Research Group, Faculty of Science, King Abdulaziz University, P. O. Box 80257, Jeddah 21589, Saudi Arabia;2. Department of Mathematics & Statistics International Islamic University, Islamabad 44000, Pakistan;3. Department of Applied Mathematics, IT-BHU, Varanasi 221005, India;4. Department of Mathematics, Quaid-i-Azam University, Islamabad 44000, Pakistan |