1. Laboratory of Algebra, Number Theory and Nonlinear Analysis, LRES, Department of Mathematics, Faculty of Sciences, University of Monastir, Monastir, Tunisia + Department of Mathematics, Higher Institute of Applied Mathematics and Computer Sciences, University of Kairouan, Kairouan, Tunisia + Department of Mathematics, Faculty of Sciences, University of Tabuk, Tabuk, Saudi Arabia
2. Department of Algebra and Number Theory, Faculty of Mathematics, University of Sciences and Technology Houari Boumediene, Algiers, Algeria
3. Laboratory of Analysis, Probability and Fractals, LRES, Department of Mathematics, Faculty of Sciences, University of Monastir, Monastir, Tunisia