À propos de cet article
Publié en ligne: 02 oct. 2020
Pages: 210 - 217
Reçu: 20 mai 2020
Accepté: 29 juil. 2020
DOI: https://doi.org/10.2478/mjpaa-2020-0016
Mots clés
© 2020 Radouane Azennar et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.
Azennar, Radouane
Department of Mathematics, Faculty of Sciences, Ibn Tofaïl UniversityMorocco
Mentagui, Driss
Department of Mathematics, Faculty of Sciences, Ibn Tofaïl UniversityMorocco