About the Authors

Oussaeif Taki-Eddine

Department of Mathematics and Informatics, the Larbi Ben M.hidi University, Oum El Bouaghi

Bouziani Abdelfatah

Department of Mathematics and Informatics, the Larbi Ben M.hidi University, Oum El Bouaghi

Corresponding Author

Email: taki_maths@live.fr