1. Department of Mathematics, Sana’a University, Sana’a, Yemen
2. Department of Computer Science, College of Science, Cihan University-Duhok, Duhok 42001, Iraq
3. Department of Mathematics, Faculty of Science, University of Zakho, Duhok, Iraq
4. Department of Mathematics, Faculty of Science, Assiut University, Assiut 71515, Egypt
5. Department of Mathematics, College of Arts and Science, Methnab, Qassim University, Buridah, Saudi Arabia