1. Department of Mathematics, Faculty of Science, South Valley University, Qena 83523, Egypt
2. Department of Mathematics, University of Poonch Rawalakot, Azad Kashmir, Pakistan
3. School of Science, University of Phayao, Phayao 56000, Thailand
4. School of Mathematics and Statistics, Beijing Institute of Technology, Beijing 102488, China
5. Research Institute for Natural Science, Hanyang University, Seoul 04763, Korea