1. Laboratoire de Systèmes Dynamiques, Faculté de Mathématiques, USTHB, Algiers, Algeria
2. Higher Institute of Applied Mathematics and Computer Sciences, University of Kairaouan, Street of Assad Ibn Alfourat, Kairaouan 3100, Tunisia; Laboratory of Algebra, Number Theory and Nonlinear Analysis LR18ES15, Department of Mathematics, Faculty of Sciences, Monastir, Tunisia; and Department of Mathematics, Faculty of Sciences, University of Tabuk, King Faisal Rd., Tabuk, Saudi Arabia