Add to ORKGLet A denote the class of functions f (z) = z + ∞ n=2 anz n which are analytic in the open unit disc U = {z : |z| < 1}. Let S denote the class of all functions in A that are univalent in U. A function f ∈ A is said to be bi-univalent in U if both f and f −1 are univalent in U. Let denote the class of bi-univalent functions in U. In this paper, we obtained the upper bounds for the second Hankel functional |a2a4 − a2 3 | for strongly bi-starlike of order
summary:We improve the bounds of the third order Hankel determinant for two classes of univalent fun...
Abstract. The objective of this paper is to obtain an upper bound to the second Hankel determinant j...
The object of the present investigation is to solve Fekete-Szegö problem and determine the sharp upp...
Let A denote the class of functions f (z) = z + �∞ n=2 anz n which are analytic in the open unit dis...
In this paper, we investigate two sub-classes ...
Hankel matrices are related to a wide range of disparate determinant computations and algorithms and...
The estimates for the second Hankel determinant a_2 a_4-a_3^2 of the analytic function f(z)=z+a_2 z^...
Abstract. In the present paper, we consider a subclass of the function class Σ of bi-univalent analy...
In this paper, we discuss the various properties of a newly-constructed subclass of the class of nor...
<span lang="EN-US">Let S denote the class of analytic and univalent functions in the open unit disk ...
Denote S to be the class of functions which are analytic, normalised and univalent in the open unit ...
Let S to be the class of functions which are analytic, normalized and univalent in the unit disk U =...
<span lang="EN-US">In the present paper, we consider asubclass of the function class $\Sigma$ of bi-...
Making use of the Hankel determinant and the Ruscheweyh derivative, in this work, we consider a gene...
Let S denote the class of analytic functions normalized and univalent in the open unit disk. U={Z:|Z...
summary:We improve the bounds of the third order Hankel determinant for two classes of univalent fun...
Abstract. The objective of this paper is to obtain an upper bound to the second Hankel determinant j...
The object of the present investigation is to solve Fekete-Szegö problem and determine the sharp upp...
Let A denote the class of functions f (z) = z + �∞ n=2 anz n which are analytic in the open unit dis...
In this paper, we investigate two sub-classes ...
Hankel matrices are related to a wide range of disparate determinant computations and algorithms and...
The estimates for the second Hankel determinant a_2 a_4-a_3^2 of the analytic function f(z)=z+a_2 z^...
Abstract. In the present paper, we consider a subclass of the function class Σ of bi-univalent analy...
In this paper, we discuss the various properties of a newly-constructed subclass of the class of nor...
<span lang="EN-US">Let S denote the class of analytic and univalent functions in the open unit disk ...
Denote S to be the class of functions which are analytic, normalised and univalent in the open unit ...
Let S to be the class of functions which are analytic, normalized and univalent in the unit disk U =...
<span lang="EN-US">In the present paper, we consider asubclass of the function class $\Sigma$ of bi-...
Making use of the Hankel determinant and the Ruscheweyh derivative, in this work, we consider a gene...
Let S denote the class of analytic functions normalized and univalent in the open unit disk. U={Z:|Z...
summary:We improve the bounds of the third order Hankel determinant for two classes of univalent fun...
Abstract. The objective of this paper is to obtain an upper bound to the second Hankel determinant j...
The object of the present investigation is to solve Fekete-Szegö problem and determine the sharp upp...