ON UNIVALENT HARMONIC FUNCTIONS
Metın Öztürk, Sibel Yalçın
Abstract
Metın Öztürk, Sibel Yalçın
Abstract
Two classes of univalent harmonic functions on unit disc satisfying the conditions P 1 are given. That the ranges of the functions belonging to these two classes are starlike and convex, respectively. Sharp coefficient relations and distortion theorems are given for these functions. Furthermore results concerning the convolutions of functions satisfying above inequalities with univalent, harmonic and convex functions in the unit disk and with harmonic functions having positive real part.
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Two classes of univalent harmonic functions on unit disc satisfying the conditions P 1 are given. That the ranges of the functions belonging to these two classes are starlike and convex, respectively. Sharp coefficient relations and distortion theorems are given for these functions. Furthermore results concerning the convolutions of functions satisfying above inequalities with univalent, harmonic and convex functions in the unit disk and with harmonic functions having positive real part.
Key concepts: Mathematics, Unit disk, Harmonic, Harmonic function, Convex function, Regular polygon, Distortion (music), Univalent function