SECOND HANKEL DETERMINANT OF LOGARITHMIC COEFFICIENTS OF CONVEX AND STARLIKE FUNCTIONS

被引:38
|
作者
Kowalczyk, Bogumila [1 ]
Lecko, Adam [1 ]
机构
[1] Univ Warmia & Mazury, Fac Math & Comp Sci, Dept Complex Anal, Ul Sloneczna 54, PL-10710 Olsztyn, Poland
关键词
starlike function; convex function; Caratheodory function; Hankel determinant; logarithmic coefficient; INVERSE;
D O I
10.1017/S0004972721000836
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
We begin the study of Hankel matrices whose entries are logarithmic coefficients of univalent functions and give sharp bounds for the second Hankel determinant of logarithmic coefficients of convex and starlike functions.
引用
收藏
页码:458 / 467
页数:10
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