Coefficient bounds of m-fold symmetric bi-univalent functions for certain subclasses

Author(s):

Nihad Hameed Shehab * , Abdul Rahman S. Juma

Message:
Article Type:
Research/Original Article (دارای رتبه معتبر)
Abstract:

In this article, the authors introduce two new subclasses of a class m-fold symmetric biunivalent functions in open unit disk. Coefficient bounds for the Taylor-Maclaurin coefficients |am+1| and |a2m+1| are are obtain . Furthermore, we solve ”Fekete-Szeg” ”o” functional problems for functions in FP,m(γ, µ, ϑ) and MP,m(κ, η, ϑ) . Also, several certain special improver results for the associated classes are presented .

Keywords:

Analytic functions , Bi-Univalent functions , Fekete-Szeg¨o coefficient , Taylor-Maclaurin series , Univalent functions

Language:
English
Published:
International Journal Of Nonlinear Analysis And Applications, Volume:12 Issue: 1, Winter-Spring 2021
Pages:
71 to 82
https://www.magiran.com/p2261116