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On the Fekete-Szegö problem for concave univalent functions
the Fekete-Szegö problem concave univalent functions
2010/11/22
We consider the Fekete-Szeg\"o problem with real parameter $\lambda$ for the class $Co(\alpha)$ of concave univalent functions.
On a Subclass of Harmonic Univalent Functions
Convex harmonic functions Starlike harmonic functions extremal problems
2010/1/22
The class of univalent harmonic functions on the unit disc satisfying the condition is given. Sharp coefficient relations and distortion theorems are given for these functions. In this paper we fin...
On Univalent Functions with Three Preassigend Values
Univalent Functions Three Preassigend Values
2010/3/5
In this paper, univalent functions with three preassigend values are studied. The sharp bounds for the first coefficient are obtained. Moreover, the coefficient problem for a subclass of such function...