1. Nonlinear Analysis and Applied Mathematics Research Group (NAAM), King Abdulaziz University, Jeddah, Saudi Arabia
2. Department of Mathematics, Atilim University, Incek, 06836 Ankara, Turkey
3. Department of Mathematics, Arak Branch, Islamic Azad University, Arak, Iran
4. Department of Mathematics, University of Jaén, Campus las Lagunillas s/n, 23071 Jaén, Spain