1. University of Oran 2, Laboratory of Analysis and Control of Partial Differential Equations of Sidi Bel Abbes-Algeria, Algeria
2. Higher School of Management-Tlemcen, Laboratory of Analysis and Control of Partial Differential Equations of Sidi Bel Abbes-Algeria, Algeria
3. Qassim University, College of Science, Department of Mathematics, BO 6644, Buraidah: 51452, Saudi Arabia