1. School of Mathematical Sciences, University of Science and Technology of China, Hefei, China, 230026
2. Department of Mathematics, Faculty of Science, Pabna University of Science and Technology, Pabna, Bangladesh
3. Mathematics Department, Faculty of Science, Taibah University, Al-Ula, Saudi Arabia
4. Department of Mathematics, Cankaya University, Ankara, Turkey
5. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung, Taiwan
6. Institute of Space Sciences, 077125, Magurele, Romania