Hankel determinant for two subclasses of univalent functions with bounded turning

被引：0
|
作者：
Nagpal, Sumit [1 ]
机构：
[1] Univ Delhi, Dept Math, Delhi 110007, India
来源：
LITHUANIAN MATHEMATICAL JOURNAL | 2025年
关键词：
Hankel determinant; functions with positive real part; bounded turning; coefficient functional; COEFFICIENT; INVERSE;
D O I：
10.1007/s10986-025-09670-6
中图分类号：
O1 [数学];
学科分类号：
0701 ; 070101 ;
摘要：
We investigate sharp upper bounds for the third-order Hankel determinants for two important subclasses F and W of normalized analytic functions f defined in an open unit disk satisfying Re f ' > 0, defined analytically by the conditions |f '(z)-1|<1 and Re(f '(z)+zf ''(z))>0, respectively.
引用
收藏
页码：294 / 305
页数：12
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