پديدآورندگان :
Saeidikia Zahra z.saeidikiai@edu.ikiu.ac.ir 2 Department of Pure Mathematics, Faculty of Sciences, Imam Khomeini International University, Qazvin 34149, Iran. , Abkar Ali abkar@sci.ikiu.ac.ir 2 Department of Pure Mathematics, Faculty of Sciences, Imam Khomeini International University, Qazvin 34149, Iran.