Institution: | 1. Department of Mathematics, University of Engineering and Technology, Lahore, 54890, Pakistan;2. Department of Mathematics, COMSATS University Islamabad, Sahiwal, 57000, Pakistan;3. Department of Mathematics, Anurag University, Venkatapur, Hyderabad, 500 088, India;4. Department of Mathematics, JNTUH University College of Engineering, Hyderabad, 500 085, India;5. Department of Mathematics and Statistics, Riphah International University I-14, Islamabad, 44000, Pakistan |