1. Department of Mathematics, Faculty of Science, Kafrelsheikh University, Kafrelsheikh 33516, Egypt; Email: roshdeymareay@sci.kfs.edu.eg
2. Department of Mathematics, Faculty of Science, Zarqa University, Zarqa 13132, Jordan; Email: rgdairi@zu.edu.jo
3. Department of Mathematics, Faculty of Science, New Valley University, Egypt; Email: m.shaban@sci.nvu.edu.eg