A Certain Class of Function Analytic and Subordinate to the Modified Sigmoid Function
Abstract
A certain class of functions, analytic and subordinate to the modified sigmoid function, is defined. Coefficient inequalities, Toeplitz, distortion, and Fekete-Szegö problems of this class were investigated. It was observed that the results obtained provide extensions to many known results in geometric function theory. Special cases of the results were equally highlighted.
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