1. Department Matematica Aplicada, E.T.S.I. de Telecomunicacion, Campus Miguel Delibes, University of Valladolid , Paseo Belen 15, 47011 Valladolid , Spain
2. Department of Mathematics, College of Art and Sciences, Khalifa University of Science and Technology , Abu Dhabi , United Arab Emirates
3. Nonlinear Analysis and Applied Mathematics (NAAM)-Research Group, Department of Mathematics, Faculty of Science, King Abdulaziz University , , Jeddah 21589 , Saudi Arabia