Department of Mathematics, Indira Gandhi National Tribal University, Lalpur, Amarkantak, Madhya Pradesh 484 887, India

Department of Mathematics, Shanghai University, China, China

Iraq

Iraq

Georgia

Chake No. 128-A/TDA, Tehsil And District Layyah, Punjab, Pakistan

Department of Mathematical and Natural Sciences Faulty of Engineering, Egyptian Russian University, Nasr City, Cairo, Egypt

Department of Mathematics and Statistics, School of Basic Science and General Studies, Margaret Lawrence University, Galilee, Delta State, Nigeria