Authors
Francis Nyamda
Department of Mathematics, Faculty of Sciences, University of Yaounde 1, Cameroon
Christophe Mouaha
Department of Mathematics, Higher Teachers Training College of Yaounde, University of Yaounde 1, Cameroon
© 2025 Francis Nyamda, Christophe Mouaha, published by West University of Timisoara
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.