Coefficient inequalities for analytic functions associated with cardioid domains

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Hacettepe Journal of Mathematics and Statistics
Volume:49 Issue:6
Coefficient inequalities for analytic functions associated with cardioid domains

Coefficient inequalities for analytic functions associated with cardioid domains

Authors : Mohsan RAZA, Saima MUSHTAQ, Sarfraz Nawaz MALİK, Janusz SOKOL

Pages : 2017-2027

Doi:10.15672/hujms.595068

View : 127 | Download : 12

Publication Date : 2020-12-08

Article Type : Research Paper

Abstract :The geometry of image domain of analytic functions is of substantial importance to have a comprehensive study of analytic functions. Malik et al. [Analytic functions associated with cardioid domain, submitted] introduced a new class of functions connected with cardioid domain and established coefficient bounds for functions in this class. Also the bounds for the coefficients of Taylor series and their related functional inequalities are of major interest. In this article, we aim to find the sharp bounds for the coefficients and to estimate the Fekete-Szegö functional for certain analytic functions associated with cardioid domain. The same type results are obtained for inverse functions and for $\loginsert ignore into journalissuearticles values(finsert ignore into journalissuearticles values(z);/z);$.
Keywords : analytic functions, shell like curve, Fibonacci numbers, cardioid domain, starlike functions

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