1. Institute of Fundamental and Applied Sciences, Duy Tan University, Ho Chi Minh City, Vietnam
2. Faculty of Natural Sciences, Duy Tan University, Da Nang, Vietnam
3. Department of Mathematics, Cankaya University, Ankara, Turkey
4. Institute of Space Sciences, Magurele-Bucharest, Romania
5. Faculty of Mathematics and Computational Science, Xiangtan University, Xiangtan, Hunan, People's Republic of China
6. Nonlinear Analysis and Applied Mathematics Research Group, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia
7. Applied Analysis Research Group, Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City, Vietnam