Initial coefficients estimates and Fekete–Szegö inequality problem for a general subclass of bi-univalent functions defined by subordination

M Illafe, F Yousef, M Haji Mohd, S Supramaniam - Axioms, 2023 - mdpi.com
In the present work, we aim to introduce and investigate a novel comprehensive subclass of
normalized analytic bi-univalent functions involving Gegenbauer polynomials and the zero …

Coefficients Inequalities for the Bi-Univalent Functions Related to q-Babalola Convolution Operator

I Al-shbeil, J Gong, TG Shaba - Fractal and Fractional, 2023 - mdpi.com
This article defines a new operator called the q-Babalola convolution operator by using
quantum calculus and the convolution of normalized analytic functions in the open unit disk …

A new comprehensive subclass of analytic bi-univalent functions related to gegenbauer polynomials

T Al-Hawary, A Amourah, A Alsoboh, O Alsalhi - Symmetry, 2023 - mdpi.com
In the current study, we provide a novel qualitative new subclass of analytical and bi-
univalent functions in the symmetry domain U defined by the use of Gegenbauer …

An application of Miller–Ross-type Poisson distribution on certain subclasses of bi-univalent functions subordinate to Gegenbauer polynomials

A Amourah, BA Frasin, TM Seoudy - Mathematics, 2022 - mdpi.com
The Miller–Ross-type Poisson distribution is an important model for plenty of real-world
applications. In the present analysis, we study and introduce a new class of bi-univalent …

Coefficient bounds for a certain subclass of bi-univalent functions associated with Lucas-balancing polynomials

A Hussen, M Illafe - Mathematics, 2023 - mdpi.com
In this paper, we introduce a new subclass of bi-univalent functions defined using Lucas-
Balancing polynomials. For functions in each of these bi-univalent function subclasses, we …

Coefficient Bounds for a Family of s-Fold Symmetric Bi-Univalent Functions

I Al-Shbeil, N Khan, F Tchier, Q **n, SN Malik, S Khan - Axioms, 2023 - mdpi.com
We present a new family of s-fold symmetrical bi-univalent functions in the open unit disc in
this work. We provide estimates for the first two Taylor–Maclaurin series coefficients for these …

[PDF][PDF] Collection of bi-univalent functions using bell distribution associated with Jacobi polynomials

A Amourah, T Al-Hawary, F Yousef… - Int. J. Neutrosophic …, 2025 - researchgate.net
The aim of this study is to present novel collections of bi-univalent functions, which are
characterized using the Bell Distribution. These collections are delineated through the …

[PDF][PDF] Bounds for the second hankel determinant of a general subclass of bi-univalent functions

M Illafe, MH Mohd, F Yousef… - International Journal of …, 2024 - researchgate.net
The Hankel determinant, which plays a significant role in the theory of univalent functions, is
investigated here in the context of bi-univalent analytic functions. Specifically, this paper is …

Coefficient inequalities and Fekete–Szegö-type problems for family of bi-univalent functions

T Al-Hawary, A Amourah, H Almutairi, B Frasin - Symmetry, 2023 - mdpi.com
In this study, we present a novel family of holomorphic and bi-univalent functions, denoted
as E Ω (η, ε; Ϝ). We establish the coefficient bounds for this family by utilizing the …

A Subclass of bi-univalent functions defined by aSymmetric q-derivative operator and Gegenbauer polynomials

M Illafe, MH Mohd, F Yousef… - European Journal of Pure …, 2024 - ejpam.com
This paper introduces a novel subclass of bi-univalent analytic functions by utilizing a
symmetric q-derivative operator in conjunction with Gegenbauer polynomials. Within this …