Authors
Rabah Mecheter
Department of Mathematics, Faculty of Mathematics and Informatics, University of M’sila University Pole, M’sila, Algeria
Hichem Khelifi
Department of Mathematics, Faculty of Sciences, University of Algiers 1, Algiers, Algeria
© 2025 Rabah Mecheter, Hichem Khelifi, published by Slovak Academy of Sciences, Mathematical Institute
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.