1. Department of Mathematics, University of Science and Technology of Mazandaran, Behshahr, Iran
2. Department of Mathematical Sciences, University of South Africa, UNISA 0003, South Africa
3. Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 110122, Taiwan
4. Department of Mathematics and Informatics, Azerbaijan University, Jeyhun Hajibeyli, 71, Baku AZ1007, Azerbaijan
5. Department of Mathematics, Faculty of Art and Sciences, Çankaya University, Ankara, Turkey
6. Lebanese American University, 11022801 Beirut, Lebanon
7. Institute of Space Sciences, Magurele–Bucharest, Romania