نتایج جستجو برای: subordination between analytic functions

تعداد نتایج: 3248045  

Journal: :Axioms 2022

In this paper, we introduce a new class of analytic functions subordinated by which is not Carathéodory. We have obtained some interesting subordination properties, inclusion and integral representation the defined function class. Several corollaries are presented to highlight applications our main results.

2004
H. Silverman R. AGHALARY JAY M. JAHANGIRI Jay M. Jahangiri

We consider the family P(1, b), b > 0, consisting of functions p analytic in the open unit disc U with the normalization p(0) = 1 which have the disc formulation |p − 1| < b in U. Applying the subordination properties to certain choices of p using the functions fn(z) = z + ∑∞ k=1+n akz , n = 1, 2, ..., we obtain inclusion relations, sufficient starlikeness and convexity conditions, and coeffici...

Journal: :Axioms 2021

Using differential subordination, we consider conditions of β so that some multivalent analytic functions are subordinate to (1+z)γ (0&lt;γ≤1). Notably, these results applied derive sufficient for f∈A satisfy the condition zf′(z)f(z)2−1&lt;1. Several previous extended.

Journal: :Journal of Functional Analysis 2018

2006
H. ÖZLEM GÜNEY

For analytic functions f(z) and g(z) which satisfy the subordination f(z) ≺ g(z), J. E. Littlewood (Proc. London Math. Soc., 23 (1925), 481–519) has shown some interesting results for integral means of f(z) and g(z). The object of the present paper is to derive some applications of integral means by J.E. Littlewood and show interesting examples for our theorems. We also generalize the results o...

2016
Rabha W. Ibrahim M. Z. Ahmad Hiba F. Al-Janaby

Recently, the generalized hypergeometric function is extended by utilizing the Beta function. Based on this type of function, we introduce a new operator in the open unit disk. The present article investigates some subordination and superordination results for certain normalized analytic functions in the open unit disk, which are acted upon by the generalized Noor integral operator. Some of out...

2007
ROMUALD LENCZEWSKI R. LENCZEWSKI

It has been shown by Voiculescu and Biane that the analytic subordination property holds for free additive and multiplicative convolutions. In this paper, we present an operatorial approach to subordination for free multiplicative convolutions. This study is based on the concepts of ‘freeness with subordination’, or ‘s-free independence’, and ‘orthogonal independence’, introduced recently in th...

Journal: :Journal of Mathematical Analysis and Applications 1990

2009
SHAMANI SUPRAMANIAM V. RAVICHANDRAN

The general classes of multivalent starlike, convex, close-to-convex and quasiconvex functions are introduced. These classes provide a unified treatment to various known subclasses. Inclusion and convolution properties are derived using the methods of convex hull and differential subordination. 1. Motivation and Preliminaries Let U = {z : |z| < 1} be the unit disk and H(U) be the class of all a...

Journal: :Mathematics 2022

This paper examines two subclasses of multivalent analytic functions defined with higher-order derivatives. These classes are generalizations several known that have been studied in separate works. Moreover, we find interesting results for these classes, including subordination results, containment relations, and integral preserving properties.

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