ON THE LOGARITHMIC COEFFICIENTS OF CLOSE TO CONVEX FUNCTIONS

被引:39
作者
Thomas, D. K. [1 ]
机构
[1] Swansea Univ, Dept Math, Singleton Pk, Swansea SA2 8PP, W Glam, Wales
关键词
Univalent functions; close to convex functions; logarithmic coefficients; UNIVALENT-FUNCTIONS;
D O I
10.1090/proc/12921
中图分类号
O29 [应用数学];
学科分类号
070104 ;
摘要
For f analytic and close to convex in D = {z : vertical bar z vertical bar < 1}, we give sharp estimates for the logarithmic coefficients gamma(n) of f defined by log f(z)/z = 2 Sigma(infinity)(n=1) gamma(n)z(n) when n = 1, 2, 3.
引用
收藏
页码:1681 / 1687
页数:7
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