Coefficient estimates for bi-concave functions

Year 2019, Volume: 68 Issue: 1, 53 - 60, 01.02.2019

F. Müge Sakar , H. Özlem Güney

https://doi.org/10.31801/cfsuasmas.443600

Cited By: 3

Abstract

In this study,a new class C_{Σ}^{p,q}(α) of analytic and bi-concave functions were presented in the open unit disc. The coefficients estimates on the first two Taylor-Maclaurin coefficients |a₂| and |a₃| were found for functions belonging to this class.

Keywords

Analytic, bi-concave functions, analytic function, univalent function, bi-univalent function, concave function

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