Coefficient Bounds for the Functions in the Class of Sigmoid Function

Authors

  • O.A. Fadipe-Joseph
  • N.A. Adeniran
  • B.B. Kadir
  • E.O. Adeniran

Keywords:

Sigmoid function, Subordination, Fekete-Szego Inequality, Analytic Functions, Univalent Functions

Abstract

In this work, coefficient bounds for the functions in the class S(λ,φ) were obtained. This work was concluded by determining  Fekete-Szego functional and the Hankel determinant.

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Published

2017-06-01

Issue

Vol. 4 No. 1 (2017)

Section

Articles