Logarithmic Coefficients for Some Classes Defined by Subordination

被引：2

作者：

Adegani, Ebrahim Analouei ^{[1
]}

Motamednezhad, Ahmad ^{[1
]}

Bulboaca, Teodor ^{[2
]}

Cho, Nak Eun ^{[3
]}

机构：

[1] Shahrood Univ Technol, Fac Math Sci, POB 31636155, Shahrood, Iran

[2] Babes Bolyai Univ, Fac Math & Comp Sci, Cluj Napoca 400084, Romania

[3] Pukyong Natl Univ, Coll Nat Sci, Dept Appl Math, Pusan 608737, South Korea

来源：

AXIOMS | 2023年 / 12卷 / 04期

关键词：

Hankel determinant; logarithmic coefficients; univalent functions; alpha-spiral-like functions; subordination; Ma-Minda-type function; HANKEL DETERMINANTS; UNIVALENT; STARLIKE;

D O I：

10.3390/axioms12040332

中图分类号：

O29 [应用数学];

学科分类号：

070104 ;

摘要：

In this paper, we obtain the sharp and accurate bounds for the logarithmic coefficients of some subclasses of analytic functions defined and studied in earlier works. Furthermore, we obtain the bounds of the second Hankel determinant of logarithmic coefficients for a class defined by subordination, such as the class of starlike functions S*(f). Some applications of our results, which are extensions of those reported in earlier papers are given here as special cases. In addition, the results given can be used for other popular subclasses.

引用

页数：13

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