1. Department of Mathematics, University of Tabuk, Tabuk 71491, Saudi Arabia
2. Department of Mathematics, Alagappa University, Karaikudi 630 003, India
3. Department of Mathematics and Statistics, College of Science, Taif University, P.O. Box 11099, Taif 21944, Saudi Arabia
4. Ramanujan Centre for Higher Mathematics, Alagappa University, Karaikudi 630 003, India
5. Department of Mathematics and Physics, Faculty of Education, Hasahesa, Gezira University, Sudan