THIRD KIND HANKEL DETERMINANT FOR MULTIVALENT BOUNDED TURNING FUNCTIONS OF ORDER ALPHA

THIRD KIND HANKEL DETERMINANT FOR MULTIVALENT BOUNDED TURNING FUNCTIONS OF ORDER ALPHA

D. V. Krishna, D. Shalini

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Abstract

The objective of this paper is to obtain an upper bound of the third order Hankel determinant for the class of multivalent bounded turning functions of order  (0 < < 1):

Keywords

Bounded turning function, upper bound, Hankel determinant, positive real function, p-valent analytic function.