1. Department of Mathematics, College of Science and Humanities in Al‐Kharj Prince Sattam bin Abdulaziz University Al‐Kharj Saudi Arabia
2. Department of Basic Engineering Science, Faculty of Engineering Menoufia University Shebin El‐Kom Egypt
3. Department of Mathematics, Faculty of Science Assuit University Assuit Egypt
4. Department of Mathematics, Faculty of Science Aswan University Aswan Egypt