1. Department of Physics, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia
2. Department of Mathematics, Faculty of Science, Zagazig University, Zagazig 44519, Egypt
3. Faculty of Medicine and Health Sciences, Ghent University, Ghent 9000, Belgium
4. Department of Mathematics, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia