1. Department of Mathematics, Faculty of Science Jiangsu University Zhenjiang China
2. Department of Mathematics Obour Institutes Cairo Egypt
3. Department of Mathematics, College of Arts and Sciences Prince Sattam bin Abdulaziz University Wadi Aldawaser Saudi Arabia
4. Department of Mathematics, Faculty of Science Taif University Taif Saudi Arabia
5. Department of Mathematics, Faculty of Science Al‐Azher University Cairo Egypt