1. Department of Mathematics, Science and Research Branch, Islamic Azad University, Tehran, Iran
2. Department of Mathematics, Qaemshahr Branch, Islamic Azad University, Qaemshahr, Iran
3. Nonlinear Analysis Research Group, Ton Duc Thang University, Ho Chi Minh City, Vietnam + Faculty of Mathematics and Statistics, Ton Duc Thang University, Ho Chi Minh City, Vietnam