1. Department of Basic Sciences, College of Science and Theoretical Studies, Saudi Electronic University, Jeddah-23442, Saudi Arabia, f.sikander@seu.edu.sa
2. Department of Mathematics and Statistics, College of Sciences, Taibah University, Yanbu-41911, Saudi Arabia, tansari@taibahu.edu.sa
3. Department of Mathematics, College of Science, King Saud University, Riyadh, Saudi Arabia, shariefd@ksu.edu.sa
4. Department of Mathematics, Faculty of Science, Tanta University, Tanta, Egypt, ayman_ramadan@science.tanta.edu.eg