1. Department of Mathematics, Centre for Research and Development, KPR Institute of Engineering and Technology, Coimbatore, Tamilnadu 641048, India
2. Department of Mathematics, K.S.Rangasamy College of Technology, Tiruchengode, Namakkal 637215, Tamilnadu, India
3. Department of Statistics, Mathematical Analysis and Optimization, Institute of Mathematics, University of Santiago de Compostela, Santiago de Compostela 15782, Spain
4. Department of Mathematics, College of Arts and Sciences, Wadi Aldawaser 11991, Prince Sattam bin Abdulaziz University, Saudi Arabia