HIGHER ORDER CLOSE-TO-CONVEX FUNCTIONS ASSOCIATED WITH RUSCHEWEYH DERIVATIVE OPERATOR

被引:0
作者
Noor, Khalida Inayat [1 ]
Shah, Shujaat Ali [1 ]
机构
[1] COMSATS Univ Islamabad, Dept Math, Islamabad, Pakistan
来源
JOURNAL OF APPLIED MATHEMATICS & INFORMATICS | 2021年 / 39卷 / 1-2期
关键词
Close-to-convex functions; Ruschweyh derivative operator; Janowski's functions; Conic domains; HANKEL DETERMINANTS;
D O I
10.14317/jami.2021.133
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
The purpose of this paper is to introduce and study certain subclasses of analytic functions by using Ruscheweyh derivative operator. We discuss various of interesting properties such as, necessary condition, arc length problem and growth rate of coefficient of newly defined class. Also rate of growth of Hankel determinant will be estimated.
引用
收藏
页码:133 / 143
页数:11
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