Authors
Abdelfatah Kouidere
LAMS, Department of Mathematics and Computer Science, Faculty of Sciences Ben M’Sik, Hassan II University of Casablanca, Morocco
Omar Balatif
Laboratory of Fundamental Mathematics and their Applications (LFMA), Department of Mathematics, Faculty of Sciences El Jadida, Chouaib Doukkali University, El Jadida, Morocco
Mostafa Rachik
LAMS, Department of Mathematics and Computer Science, Faculty of Sciences Ben M’Sik, Hassan II University of Casablanca, Morocco