Document Type : Original Article
Authors
1 Department of mathematics - faculty of science (girls branch) - al - azhar university
2 Department of Mathematics, Faculty of Science, Al-Azhar University, (girls branch) 11651, Egypt
3 Department of Mathematics, Faculty of Science, New Mansoura University, New Mansoura 7723730, Egypt
4 ⁴ Department of Mathematics, Faculty of Science, Al-Azhar University 11884, Egypt
Abstract
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