Certain subclasses of Spiral-like univalent functions related with Pascal distribution series
نویسندگان
چکیده
Abstract The purpose of the present paper is to find sufficient conditions for subclasses analytic functions associated with Pascal distribution be in spiral-like univalent and inclusion relations such open unit disk
منابع مشابه
A certain convolution approach for subclasses of univalent harmonic functions
In the present paper we study convolution properties for subclasses of univalent harmonic functions in the open unit disc and obtain some basic properties such as coefficient characterization and extreme points.
متن کاملStability for certain subclasses of harmonic univalent functions
In this paper, the problem of stability for certain subclasses of harmonic univalent functions is investigated. Some lower bounds for the radius of stability of these subclasses are found.
متن کاملCertain subclasses of bi-univalent functions associated with the Aghalary-Ebadian-Wang operator
In this paper, we introduce and investigate two new subclasses of the functions class $ Sigma $ of bi-univalent functions defined in the open unit disk, which are associated with the Aghalary-Ebadian-Wang operator. We estimate the coefficients $|a_{2} |$ and $|a_{3} |$ for functions in these new subclasses. Several consequences of the result are also pointed out.
متن کاملCertain Subclasses of Bi–univalent Functions Satisfying Subordinate Conditions
In this paper, we introduce and investigate each of the following subclasses: SΣ(λ ,γ ;φ), H S Σ(α), RΣ(η ,γ ;φ) and BΣ(μ ;φ) (0 λ 1; γ ∈ C {0}; α ∈ C; 0 η < 1; μ 0) of bi-univalent functions, φ is an analytic function with positive real part in the unit disk D, satisfying φ(0) = 1, φ ′(0) > 0, and φ(D) is symmetric with respect to the real axis. We obtain coefficient bounds involving the Taylo...
متن کاملOn Certain Subclasses of Univalent Functions and Radius Properties
Denote by A the class of all functions f , normalized by f(0) = f ′(0) − 1 = 0, that are analytic in the unit disk ∆ = {z ∈ C : |z| < 1}, and by S the subclass of univalent functions in ∆. Denote by S∗ the subclass consisting of functions f in S that are starlike (with respect to origin), i.e., tw ∈ f(∆) whenever t ∈ [0, 1] and w ∈ f(∆). Analytically, f ∈ S∗ if and only if Re (zf ′(z)/f(z)) > 0...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Moroccan Journal of pure and applied analysis
سال: 2021
ISSN: ['2351-8227']
DOI: https://doi.org/10.2478/mjpaa-2021-0020