À propos de cet article
Publié en ligne: 07 déc. 2018
Pages: 73 - 85
Reçu: 12 juin 2018
Accepté: 10 oct. 2018
DOI: https://doi.org/10.2478/awutm-2018-0006
Mots clés
© 2018 Sujit Ghosh, published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Ghosh, Sujit
Department of Mathematics, Krishnagar Govt. CollegeWest Bengal, India