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Paper Information

Journal:   JOURNAL OF MATHEMATICAL EXTENSION   2018 , Volume 12 , Number 4; Page(s) 39 To 50.

New Subclass of Univalent Function Involving the Modified Sigmoid Function Using Subordination Principle

Author(s):  Fadipe Joseph O.A.*, Adeniran Nafisat Adenike, Windare o.j.
* Department of Mathematics Faculty of Physical Sciences University of Ilorin Ilorin, Nigeria
In this work, a new subclass of function, G (n, μ ,  ): n 2 N0, μ > 1, 0 6  6 1, was defined using the Sˇ alˇ agean differential operator involving the modified sigmoid function and subordination principle. The initial coefficient bounds and the Fekete-Szego functional of this class were obtained.
Keyword(s): Analytic function,Sigmoid function,Subordination principle,Sˇalˇagean differential operator
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