Abstract:Let SH be the class of functions f = h +ḡ that are harmonic univalent and sense-preserving in the open unit disk U = {z ∈ C : |z| < 1} , where h, g are analytic and f (0In this paper, we investigate the properties of some subclasses of SH such that h(z) is a starlike (or convex) function defined by subordination. We provide coefficient estimates, extremal function, distortion and growth estimates of g , growth, and Jacobian estimates of f . We also obtain area estimates and covering theorems of the classes. Th… Show more
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