首都师范大学学报(自然科学版)2025,Vol.46Issue(4):45-49,5.DOI:10.19789/j.1004-9398.2025.04.006
几类单叶函数逆的Hermitian Toeplitz行列式
Hermitian Toeplitz determinants for the inverse of several univalent functions
摘要
Abstract
Let A denote the class of functions f of form f(z)=z+∞∑n=2anzn,which are analytic in the unit disk Δ={z:|z|<1}.Let S*(K,RT and T resp.)denote the class of functions f ∈A such that Re{zf′(z)/f(z)}>0(Re{1+zf″(z)/f′(z)}>0,Re{f′(z)}>0 and Re{f(z)/z}>0 resp.)in Δ.In the present paper,we determine the sharp bounds for|T2,1(f-1)|,|T3,1(f-1)|for functions f in the classes S*,K,RT and T.关键词
Hermitian Toeplitz矩阵/单叶函数/逆函数Key words
Hermitian Toeplitz matrix/univalent functions/inverse function分类
数理科学引用本文复制引用
郭栋,敖恩,王庆,李宗涛..几类单叶函数逆的Hermitian Toeplitz行列式[J].首都师范大学学报(自然科学版),2025,46(4):45-49,5.基金项目
内蒙古自治区自然科学基金项目(2020MS01010) (2020MS01010)
安徽省高校自然科学研究项目(KJ2020ZD74,KJ2020A0993) (KJ2020ZD74,KJ2020A0993)
广州民航职业技术学院项目(22x0418) (22x0418)