HANKEL DETERMINANT PROBLEMS FOR CERTAIN SUBCLASSES OF SAKAGUCHI TYPE FUNCTIONS DEFINED WITH SUBORDINATION

被引：2

作者：

Singh, Gagandeep ^{[1
]}

Singh, Gurcharanjit ^{[2
]}

机构：

[1] Khalsa Coll, Dept Math, Amritsar 143002, Punjab, India

[2] GNDU Coll, Dept Math, Chungh 143304, Punjab, India

来源：

KOREAN JOURNAL OF MATHEMATICS | 2022年 / 30卷 / 01期

关键词：

Analytic functions; Sakaguchi type functions; subordination; coefficient problem; Hankel determinant; COEFFICIENT; STARLIKE; INVERSE;

D O I：

10.11568/kjm.2022.30.1.81

中图分类号：

O1 [数学];

学科分类号：

0701 ; 070101 ;

摘要：

The present investigation is concerned with the estimation of initial coefficients, Fekete-Szego inequality, second Hankel determinants, Zalcman functionals and third Hankel determinants for certain subclasses of Sakaguchi type functions defined with subordination in the open unit disc E = {z is an element of C : vertical bar z vertical bar < 1}. The results derived in this paper will pave the way for the further study in this direction.

引用

页码：81 / 90

页数：10

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