A subclass of harmonic functions with negative coefficients defined by Dziok-Srivastava operator (Q2896925)

The authors make use of the generalized hypergeometric function \({_pF_q(z)}\) depending upon complex parameters, and by forming its convolution with analytic functions, they define a certain linear operator. This operator is then used to define a new class of harmonic mappings on the unit disk. The new class includes many earlier ones studied by various other authors. A sufficient condition for mappings to belong to this class is established; furthermore, the authors present coefficient bounds, distortion theorems and forms of extreme points.