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Multivalent harmonic functions defined by Dziok-Srivastava operator. (English) Zbl 1252.30011

The authors consider a class of multivalent harmonic functions defined by the Dziok-Srivastava operator. Necessary and sufficient coefficient bounds, extreme points, convex combination and distortion bounds for this class of functions are obtained.

MSC:

30C45 Special classes of univalent and multivalent functions of one complex variable (starlike, convex, bounded rotation, etc.)
30C50 Coefficient problems for univalent and multivalent functions of one complex variable
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