About this article
Published Online: Mar 31, 2018
Page range: 73 - 81
Received: Dec 01, 2016
Accepted: Mar 06, 2017
DOI: https://doi.org/10.1515/auom-2017-0036
Keywords
© 2018
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.
Kinkar Ch. Das
Department of Mathematics, Sungkyunkwan University,Suwon, Republic of Korea
Carlos M. da Fonseca
Department of Mathematics, Kuwait University,Safat, Kuwait
University of Primorska, FAMNIT, Glagoljaska 8, 6000Koper, Slovenia