On Harmonic Functions Defined by Derivative Operator

On Harmonic Functions Defined by Derivative Operator

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Abstract Let denote the class of functions that are harmonic univalent and sense-preserv- ing in the unit disk , where.In this paper, we introduce the class of functions which are The Path of Financial Institutions to Develop Green Finance to Support the Conversion of New and Old Kinetic Energy in Shandong Province harmonic in.A sufficient coefficient of this class is determined.It is MIGRATING AUTOLUX WEBSITE FROM MODX TO PHALCONPHP WITH FURTHER DEVELOPMENTS (Search Engine Optimization and Mobile Application Support Implementation) shown that this coefficient bound is also necessary for the class if , where and.

Coefficient conditions, such as distortion bounds, convolution conditions, convex combination, extreme points, and neighborhood for the class , are obtained.