1. Department of of Applied Mathematics and Science, Faculty of Engineering National University of Science and Technology Seeb Sultanate of Oman
2. Department of Mathematics, Faculty of Science King Abdulaziz University Jeddah Saudi Arabia
3. University of Jeddah College of Science and Arts at Khulis, Department of Mathematics Jeddah Saudi Arabia
4. Mathematics Department, Faculty of Science Al‐Azhar University (Assiut Branch) Assiut Egypt