Institution: | 1. Ibnu Sina Institute for Fundamental Science Studies, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia;2. Department of Mathematics, Faculty of Science, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia;3. Department of Mathematics, College of Science, University of Sulaimani, 46001 UOS, Sulaimani, Kurdistan, Iraq;4. Department of Mathematics, Faculty of Science, Ibb University, P.O. Box 70270, Ibb, Yemen;5. Department of Mathematics, Faculty of Science, King Khalid University, P.O. Box 9004, Abha, Saudi Arabia |