1. INSA Hauts-de-France, CERAMATHS-Laboratoire de Matériaux Céramiques et de Mathématiques, Univ. Polytechnique Hauts-de-France, F-59313 Valenciennes, France
2. Department of Mathematics, Al Maaref University, Beirut Campus, Airport Bridge, Ghobeiry 5078 0025, Lebanon
3. Department of Mathematics, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia