1. Department of Mathematics, Faculty of Science, Jazan University 1 , Jazan, Saudi Arabia
2. Department of Mathematics, Faculty of Science 2 , Mansoura, Egypt
3. Department of Mathematics, College of Science and Humanities, Imam Abdulrahman Bin Faisal University 3 , Jubail 35811, Saudi Arabia
4. Yanbu Industrial College, The Royal Commission for Jubail and Yanbu 4 , Riyadh 30436, Saudi Arabia