Authors
Hakima Bouhadjera
Badji Mokhtar-Annaba University Faculty of Sciences, Department of Mathematics Laboratory of Applied Mathematics, Annaba, Algeria
Aya Dari
Chadli Ben Djedid University Faculty of Sciences and Technology, Department of Mathematics, El-Tarf, Algeria
Ryme Zouaimia
Badji Mokhtar-Annaba University Faculty of Sciences, Department of Mathematics Laboratory of Applied Mathematics, Annaba, Algeria