| Institution: | 1. LAAS-CNRS, Université de Toulouse, CNRS, Toulouse, France;2. Departamento de Matemática, Universidad Técnica Federico Santa Maria, Casilla 110-V, Valparaiso, Chile;1. Department of Mathematics, Faculty of Science, King Abdulaziz University, Jeddah, Saudi Arabia;2. Department of Mathematics, Faculty of Science, Beni-Suef University, Beni-Suef, Egypt;3. Department of Mathematics, Faculty of Science, Cairo University, Giza, Egypt;4. Department of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah, Saudi Arabia;5. Department of Mathematics and Computer Sciences, Cankaya University, Ankara, Turkey;6. Institute of Space Sciences, Magurele-Bucharest, R 76900, Romania;7. Department of Basic Science, Institute of Information Technology, Modern Academy, Cairo, Egypt |
