Coefficient Bounds for a General Subclass of Bi-Univalent Functions

  • Şahsene Altinkaya uludağ üniversity
  • Sibel Yalcin
Keywords: Analytic and univalent functions, bi-univalent functions, coefficient bounds

Abstract

In the present investigation, we introduce and investigate a new subclass of the function class ∑ of bi-univalent functions defined in the open unit disc. We find estimates on the coefficients |a2| and |a3| for functions in the function class S∑(n, h,λ ). The results presented in this paper improve or generalize the recent works of Jothibasu [13] and other authors.
Published
2016-07-11
Section
Articoli