[1] Kermanshah Univ Technol, Dept Engn Sci, Kermanshah, Iran
[2] Bahcesehir Univ, Fac Engn & Nat Sci, Dept Math, TR-34349 Istanbul, Turkey
[3] Kafkas Univ, Dept Math, Fac Educ, Kars, Turkey
[4] Ajman Univ, Coll Humanities & Sci, Ajman, U Arab Emirates
[5] Univ Jordan, Dept Math, Fac Sci, Amman 11942, Jordan