Results 51 to 60 of about 10,343,403 (331)

Applications of the q-Srivastava-Attiya Operator Involving a Certain Family of Bi-Univalent Functions Associated with the Horadam Polynomials

open access: yesSymmetry, 2021
In this article, by making use of the q-Srivastava-Attiya operator, we introduce and investigate a new family SWΣ(δ,γ,λ,s,t,q,r) of normalized holomorphic and bi-univalent functions in the open unit disk U, which are associated with the Bazilevič ...
H. Srivastava, A. Wanas, R. Srivastava
semanticscholar   +1 more source

Certain Classes of Univalent Functions With Negative Coefficients Defined By General Linear Operator

open access: yesTikrit Journal of Pure Science, 2019
In this study, a subclass of an univalent function with negative coefficients which is defined by anew general Linear operator have been introduced.
Mazin Sh.Mahmoud   +2 more
doaj   +1 more source

A Special Family of m-Fold Symmetric Bi-Univalent Functions Satisfying Subordination Condition

open access: yesFractal and Fractional, 2022
In this paper, we introduce a special family Mσm(τ,ν,η,φ) of the function family σm of m-fold symmetric bi-univalent functions defined in the open unit disc D and obtain estimates of the first two Taylor–Maclaurin coefficients for functions in the ...
I. Aldawish, S. R. Swamy, B. Frasin
semanticscholar   +1 more source

Nonvanishing univalent functions [PDF]

open access: yesMathematische Zeitschrift, 1980
The class S of functions g(z) = z + c 2 z 2 + c 3 z 3 + ... analytic and univalent in the unit disk Izr < 1 has been thoroughly studied, and its properties are well known. Our purpose is to investigate another class of functions which, by contrast, seems to have been rather neglected. This is the class S o of functions f ( z ) = 1 + a 1 z + a 2 z Z + .
Duren, Peter L., Schober, Glenn
openaire   +3 more sources

Application of Gegenbauer Polynomials with Two Variables to Bi-univalency of Generalized Discrete Probability Distribution Via Zero-Truncated Poisson Distribution Series [PDF]

open access: yesSahand Communications in Mathematical Analysis
The present study is unique in exploring bi-univalent functions, which has recently garnered attention from many researchers in Geometric Function Theory (GFT).
Tunji Ibrahim Awolere   +2 more
doaj   +1 more source

An exact estimate of the third Hankel determinants for functions inverse to convex functions

open access: yesМатематичні Студії, 2023
Invesigation of bounds for Hankel determinat of analytic univalent functions is prominent intrest of many researcher from early twenth century to study geometric properties.
B. Rath, K. S. Kumar, D. V. Krishna
doaj   +1 more source

Initial Coefficient Estimates and Fekete-Szegö Inequalities for New Families of Bi-Univalent Functions Governed by (p - q)-Wanas Operator

open access: yesSymmetry, 2021
The motivation of the present article is to define the (p−q)-Wanas operator in geometric function theory by the symmetric nature of quantum calculus. We also initiate and explore certain new families of holormorphic and bi-univalent functions AE(λ,σ,δ,s ...
A. Wanas, L. Cotîrlă
semanticscholar   +1 more source

Meromorphic univalent function with negative coefficient

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1994
Let Mn be the classes of regular functions f(z)=z−1+a0+a1z+… defined in the annulus ...
A. Dernek
doaj   +1 more source

Argument and Coefficient Estimates for Certain Analytic Functions

open access: yesMathematics, 2020
The aim of the present paper is to introduce a new class G α , δ of analytic functions in the open unit disk and to study some properties associated with strong starlikeness and close-to-convexity for the class G α , δ
Davood Alimohammadi   +3 more
doaj   +1 more source

Coefficient Bounds for Certain Subclasses of Bi-Univalent Function

open access: yes, 2013
We introduce two new subclasses of the function class Σ of bi-univalent functions defined in the open unit disc. Furthermore, we find estimates on the coefficients and for functions in these new subclasses.
G. Murugusundaramoorthy   +2 more
semanticscholar   +1 more source

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