1. Department of Mathematics, Faculty of Arts and Science Khalifa University Abu Dhabi United Arab Emirates
2. NAAM Research Group, Department of Mathematics, Faculty of Science King Abdulaziz University Jeddah Saudi Arabia
3. LASIE University of La Rochelle La Rochelle France
4. Institute of Informatics University of Rzeszów Rzeszów Poland
5. Department of Differential Equations Ivan Franko National University of Lviv Lviv Ukraine