HANKEL DETERMINANT ASSOCIATED WITH LOGISTIC SIGMOID FUNCTIONS IN THE SPACE OF λ-PSEUDO-STARLIKE FUNC

Abstracts

The present paper is targeted at obtaining the sharp upper bounds for functions belonging to the class of logistic type. The application of these bounds to the Fekete-Szego functional and the second Hankel determinant were critically examined.

Keywords : Univalent; analytic function; λ - pseudo-starlike function; second Hankel determinant; sigmoid function.

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