On a Subclass of Univalent Functions Defined by a Generalized Differential Operator
نویسندگان
چکیده
n=2 anz n which are analytic in the open unit disk U := {z ∈ C : |z| < 1}. By S and C we denote the subclasses of functions in A which are univalent and convex in U, respectively. Let P be the well-known Carathéodory class of normalized functions with positive real part in U and let P(λ), 0 ≤ λ < 1 be the subclass of P consisting of functions with real part greater than λ. The Hadamard product or convolution of the functions f(z) = z + ∞ ∑
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تاریخ انتشار 2011