Document Type : Research Paper
Authors
1 Department of Mathematics, Rasht Branch, Islamic Azad University, Rasht, Iran
2 Department of Applied Mathematics, Faculty of Mathematical Sciences, University of Guilan, P.O. Box. 41335-1914, Guilan, Rasht, Iran
3 Department of Engineering sciences, Faculty of Technology and Engineering East of Guilan, University of Guilan P.C.44891-Rudsar-Vajargah,Iran
Abstract
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