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Toplam kayıt 8, listelenen: 1-8
Applications of chebyshev polynomials on λ-pseudo bi-starlike and λ-pseudo bi-convex functions with respect to symmetrical points
(Işık University Press, 2020)
The purpose of this work is to use the Chebyshev polynomial expansions to seek upper bounds for the second and third coefficients of functions belongs to a subclass of λ-pseudo bi-starlike and λ-pseudo bi-convex functions ...
Sharp inequalities for univalence of meromorphic functions in the punctured unit disk
(Işık University Press, 2021)
A new class of meromorphic functions f that are univalent in the punctured unit disk U∗ = {z : 0 < |z| < 1} is introduced. This class is denoted by MU and consisting of functions f defined by |1 + f’(z)/f ²(z)| < 1 and ...
On the Chebyshev polynomial coefficient problem of bi-Bazilevič functions
(Işık University Press, 2020)
A function said to be bi-Bazilevič in the open unit disk U if both the function and its inverse are Bazilevič there. In this paper, we will study a newly constructed class of bi-Bazilevič functions. Furthermore, we establish ...
Subclasses of multivalent functions of complex order associated with sigmoid function and bernoulli lemniscate
(Işık University Press, 2020)
In this present work, subclasses of multivalent functions of complex order associated with simple logistic sigmoid activation function and Bernoulli Lemniscate were investigated. Early few coefficient bounds, relevant ...
Bounds for initial maclaurin coefficients for a new subclasses of analytic and M-fold symmetric BI-univalent functions
(Işık University Press, 2020)
In the present paper, we introduce and study two new subclasses of the function class Σm consisting of analytic and m-fold symmetric bi-univalent functions in the open unit disk U. We establish upper bounds for the initial ...
On a class of sakaguchi functions related to Bernoulli lemniscate and modified sigmoid function
(Işık University Press, 2020)
The aim of this investigation is to provide further results on a class of Sakaguchi functions related to Bernoulli Lemniscate and modified sigmoid function for the class SL(s, t, Φm,n). Early few coefficient bounds of f(z) ...
(p, q)−Chebyshev polynomials and their applications to bi-univalent functions
(Işık University Press, 2022)
In the present paper, a subclass of analytic and bi-univalent functions by means of (p, q)−Chebyshev polynomials is introduced. Certain coefficient bounds for functions belong to this subclass are obtained. Furthermore, ...
A certain subclass of uniformly convex functions with negative coefficients defined by lambda operator
(Işık University Press, 2022)
In this paper, we introduce a new subclass of uniformly convex functions with negative coefficients defined by lambda operator. We obtain the coefficient bounds, growth distortion properties, extreme points and radii of ...