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On certain subclass of harmonic univalent functions defined by a generalized Ruscheweyh derivatives operator
Harmonic univalent functions Ruscheweyh derivative
2010/9/20
In this paper, the class SH(α, β; n, λ) of univalent harmonic and sense-preserving mappings in the unit disk is introduced. The distortion inequalities and extreme points for functions in the class SH...
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 the Subclass of Salagean-Type Harmonic Univalent Functions
Harmonic Meromorphic Starlike Symmetric Conjugate Convex functions
2008/6/27
Using the Salagean derivative, we introduce and study a class of Goodman-Ronning type harmonic univalent functions. We obtain coefficient conditions, extreme points, distortion bounds, convolution con...