1. Laboratory of Pure and Applied Mathematics, UMAB, Department of Mathematics, University of Alger 1, Alger Ctre, Algeria
2. Ecole Normale Superieure, UMAB, Mostaganem, Algeria
3. Department of Computer Science and Mathematics, Lebanese American University, Beirut, Lebanon
4. Mathematics Research Center, Department of Mathematics, Near East University, Nicosia /Mersin 10, Turkey
5. Information and Communication Technology Research Group, Scientific Research Center, Al-Ayen University, Thi-Qar, Iraq
6. Laboratory of Pure and Applied Mathematics, Faculty of SEI, UMAB University, Mostaganem, Algeria
7. Cardiff School of Technologies, Cardiff Metropolitan University, Cardiff, UK