Coefficient inequalities for new subclasses of bi-univalent functions defined by using the function δ [PDF]
, 2022 © 2022 World Scientific Publishing Company.In this investigation, we introduce and study two new subclasses of bi-univalent functions defined by using the function f and Salagean differential operator.
Sağsöz, Fatma, Orhan, Halit
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An Application of Rabotnov Functions on Certain Subclasses of Bi-Univalent Functions
Axioms, 2022 In this study, a new class RΣμ(x,γ,α,δ,β) of bi-univalent functions studied by means of Gegenbauer polynomials (GP) with Rabotnov functions is introduced. The coefficient of the Taylor coefficients a2 and a3 and Fekete-Szegö problems for functions belonging to RΣμ(x,γ,α,δ,β) have been derived as well.
Ala Amourah +3 more
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Coefficient Estimates for Some Subclasses of m-Fold Symmetric Bi-univalent Functions Defined by Linear Operator [PDF]
, 2021 The articles introduces and investigates "two new subclasses of the bi-univalent functions ." These are analytical functions related to the m-fold symmetric function and .
Hussein , Dhirgam Allawy Hussein +1 more
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Estimates for Coefficients of Bi-Univalent Functions Associated with a Fractional q-Difference Operator [PDF]
, 2022 In the present paper, we discuss a class of bi-univalent analytic functions by applying a principle of differential subordinations and convolutions.
Kamsing Nonlaopon +3 more
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Certain Inequalities for a General Class of Analytic and Bi-univalent Functions [PDF]
Sahand Communications in Mathematical Analysis, 2019 In this work, the subclass of the function class S of analytic and bi-univalent functions is defined and studied in the open unit disc. Estimates for initial coefficients of Taylor- Maclaurin series of bi-univalent functions belonging these class are ...
Arzu Akgul
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Bounds For the Coefficients of Two New Subclasses of Bi-Univalent Functions
Science Journal of University of Zakho, 2022 This article discusses two new subclasses of the bi-univalent functions category ∑ in the open unit disk . The primary goal of the article is to obtain estimations of the coefficients and for the functions that are within these two new subclasses.
khalid Ibrahim Abdullah +1 more
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On the class of bi-univalent functions
Comptes Rendus. Mathématique, 2014 In an attempt to answer the question raised by A.W. Goodman, we obtain a covering theorem, a distortion theorem, a growth theorem, the radius of convexity and an argument estimate of f
Sivasubramanian, Srikandan +3 more
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Subclasses of Bi-Univalent Functions Defined by Frasin Differential Operator [PDF]
, 2020 Let Ω denote the class of functions f ( z ) = z + a 2 z 2 + a 3 z 3 + ⋯ belonging to the normalized analytic function class A in the open unit disk U = z : z < 1 , which are bi-univalent in U , that ...
Ibtisam Aldawish +2 more
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Subclass of bi-univalent function associated to Chebyshev polynomial [PDF]
, 2022 The Chebyshev polynomials are utilized in this study to define the subclass of the bi-univalent function. Also, Chebyshev polynomial bounds and Fekete-Szego inequalities for functions defined in the classes are established.Comment: 7 ...
Birajdar, G. M., Sangle, N. D.
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Faber Polynomial Coefficient Estimates for Meromorphic Bi-Starlike Functions
International Journal of Mathematics and Mathematical Sciences, 2013 We consider meromorphic starlike univalent functions that are also bi-starlike and find Faber polynomial coefficient estimates for these types of functions. A function is said to be bi-starlike if both the function and its inverse are starlike univalent.
Samaneh G. Hamidi +2 more
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