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On the Coefficients of Two Classes of Bi-Univalent Functions
Journal article   Peer reviewed

On the Coefficients of Two Classes of Bi-Univalent Functions

H. E. Darwish, A. Y. Lashin and E. M. Madar
Southeast Asian bulletin of mathematics, Vol.41(6), pp.829-835
01/01/2017

Abstract

Mathematics Physical Sciences Science & Technology
Two interesting subclasses of the function class Sigma of analytic and bi-univalent functions in the open unit disk D are introduced. Bounds for the Taylor-Maclaurin coefficients vertical bar a(2)vertical bar and vertical bar a(3)vertical bar are found in our investigations.

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