1. Laboratory of Dynamical Systems, Mathematical Engineering Team, Department of Mathematics, Faculty of Sciences El Jadida, Chouaib Doukkali University, El Jadida, Morocco
2. Department of Mathematics, Faculty of Sciences Ain Chock, University Hassan II, Casablanca, Morocco
3. Laboratory of Analysis, Modeling and Simulation, Department of Mathematics, Computer Science, Faculty of Sciences Ben M’Sik, Hassan II University Mohammedia, Casablanca, Morocco