1. Mathematics Department, Faculty of Science, Assiut University, New Valley Branch, Assiut, Egypt
2. Mathematical Science, Faculty of Science, Princess Nourah bint Abdulrahman University, Riyadh, Saudi Arabia
3. Mathematics Department, Faculty of Science, Assiut University, Assiut, Egypt
4. Mathematics and Statistics Department, Faculty of Science, Taif University, Taif, Saudi Arabia
5. Faculty of Science, Alexandria University, Alexandria, Egypt