1. Department of Mathematics, Faculty of Mathematics and InformaticsUniversity of Science and Technology of Oran Mohamed Boudiaf El Mnaouar Bir El Djir, Oran 31000 Algeria
2. Department of Mathematics, College of Sciences and ArtsQassim University Buraydah Kingdom of Saudi Arabia
3. Laboratory of Fundamental and Applied Mathematics of Oran (LMFAO)University of Oran 1 Ahmed Benbella Algeria