About this article
Published Online: Sep 21, 2017
Page range: 141 - 159
Received: Oct 10, 2015
Accepted: Dec 15, 2015
DOI: https://doi.org/10.1515/auom-2016-0052
Keywords
© 2017
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Heydari, Mohammad Taghi
Department of Mathematics, College of Sciences, Yasouj University,Yasouj, Iran
Department of Mathematics, College of Sciences, Higher Education Center of Eghlid,Eghlid, Iran
Ranjbar, Sajad
Department of Mathematics, College of Sciences, Higher Education Center of Eghlid,Eghlid, Iran