Sayadi Shahraki, M.
Mansouri, H.
Zangiabadi, M.
Mahdavi-Amiri, N.
Funding for this research was provided by:
School of Mathematics, Institute for Research in Fundamental Sciences (95900076)
Shahrekord University (94GRD1M2003)
Shahrekord University (94GRD1M1034)
Article History
Received: 22 June 2016
Accepted: 30 July 2017
First Online: 11 October 2017