Hossein JAFARI *, Hassan Kamil JASSIM , and Javad VAHIDI a,d a Department of Mathematical Sciences, University of South Africa, Pretoria, South Africa b Department of Mathematics, University of Mazandaran,… Click to show full abstract
Hossein JAFARI *, Hassan Kamil JASSIM , and Javad VAHIDI a,d a Department of Mathematical Sciences, University of South Africa, Pretoria, South Africa b Department of Mathematics, University of Mazandaran, Babolsar, Iran c Department of Mathematics, Faculty of Education for Pure Sciences, University of Thi-Qar, Nasiriyah, Iraq d Department of Mathematics, Iran University of Science and Technology, Tehran, Iran
               
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