Second Hankel Determinants and Fekete-Szegö Inequalities for Some Sub-Classes of Bi-Univalent Functions with Respect to Symmetric and Conjugate Points Related to a Shell Shaped Region

In this paper, we have investigated second Hankel determinants and FeketeSzeg? inequalities for some subclasses of Bi-univalent functions with respect to symmetric and Conjugate points which are subordinate to a shell shaped region in the open unit disc ?.

一类解析函数类的Hankel行列式的上界估计（英文）

本文对在单位圆盘U={z∈C:|z|<1}内解析且满足(1-λ)f(z)/z+λf'(z)1+Az/1+Bz(-1≤B<A≤1;z∈U)的函数f所对应的Hankel行列式|a2a4-a23|,利用Toeplitz行列式的性质得到了其上界估计.

有关对称点的星像函数和凸像函数逆的Toeplitz行列式

令S_(s)^(*)和C_(s)分别表示与对称点有关的星像和凸像函数类,研究了f∈S_(s)^(*)和f∈C_(s)的逆函数的Toeplitz行列式.

贝努利左半区域内一类解析函数的三阶Hankel行列式（英文）

利用从属关系定义了贝努利左半区域内的一类解析函数BLα(0≤α≤1),并研究了该函数类BLα的三阶Hankel行列式H 3(1),得到其上界估计.除此之外,给出了一些特殊的例子.