About this article
Published Online: May 29, 2020
Page range: 34 - 41
Received: Dec 31, 2019
Accepted: Feb 28, 2020
DOI: https://doi.org/10.2478/mjpaa-2020-0003
Keywords
© 2020 F. Jafari et al., published by Sciendo
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Jafari, F.
Department of Mathematics, Faculty of Sciences, Shiraz Branch, Islamic Azad UniversityShiraz
Kamali, Z.
Department of Mathematics, Faculty of Sciences, Shiraz Branch, Islamic Azad UniversityShiraz