[1] JIS Coll Engn, Dept Math, Kalyani 741235, W Bengal, India
[2] Assistant Teacher Sankarpur High Madrasah HS, Murshidabad 742159, India
[3] Bu Ali Sina Univ, Fac Basic Sci, Dept Math, Hamadan 6517838695, Iran
[4] Taif Univ, Coll Sci, Dept Math & Stat, POB 11099, Taif 21944, Saudi Arabia
[5] King Khalid Univ, Coll Sci, Dept Math, Abha 61413, Saudi Arabia
[6] Khon Kaen Univ, Fac Sci, Dept Math, Khon Kaen 40002, Thailand