1. Department of Mathematics, University of Management and Technology, Lahore, Pakistan
2. Université de Sousse, Institut Supérieur d’Informatique et des Techniques de Communication, H. Sousse 4000, Tunisia
3. China Medical University Hospital, China Medical University, Taichung 40402, Taiwan
4. Department of Mathematics and Applied Mathematics, Sefako Makgatho Health Sciences University, P.O. Box 60, Ga-Rankuwa 0208, South Africa
5. Institut de Mathématiques et de Sciences Physiques (IMSP/UAC), Laboratoire de Topologie Fondamentale, Computationnelle et leurs Applications (Lab-ToFoCApp), Porto-Novo BP 613, Benin