1. Department of Mathematics, Faculty of Physical and Numerical Sciences, Abdul Wali Khan University Mardan, Mardan, Khyber Pakhtunkhwa, Pakistan
2. Department of Electrical and Electronic Engineering, College of Science and Engineering, National University of Ireland Galway, Galway, Ireland
3. Department of Mathematics, College of Science and Arts in Muhayil, King Khalid University, Abha, Saudi Arabia