In this work, the generalized Bessel functions with their normalization are considered.
Various conditions are obtained so that these Bessel functions have certain geometric …

A bi-univalent function is a univalent function defined on the unit disk with its inverse also
univalent on the unit disk. Estimates for the initial coefficients are obtained for bi-univalent …

Abstract period.. Using the methods of differential subordination and superordina hyphen t
ion comma sufficient conditions are determined on the multiplier transformation for …

We obtain subordination and superordination preserving properties for a new generalized
multiplier transformation operator, defined for multivalent functions in the open unit disk. A …

Subclasses of $ p $-valent starlike and convex functions in the unit disk in the complex plane
are investigated. Every $ p $-valent convex function in a subclass is shown to belong to its …

On Meromorphic Starlike Functions of Reciprocal Order α Page 1 On Meromorphic Starlike
Functions of Reciprocal Order α Yong Sun1, Wei-** Kuang1 and Zhi-Gang Wang2 1Department …

Several subclasses of meromorphic functions in the unit disk are introduced by means of
convolution with a given fixed meromorphic function. Subjecting each convoluted-derived …

The aim of a study of the presented paper is the differential subordination involving
harmonic means of the expressions p (z) p (z), p (z)+ zp'(z) p (z)+ zp′(z), and p (z)+ zp'(z) p …

2 sub Department of Mathematics comma Kyungsung University comma Busan 608 hyphen
737 comma Korea 1 sub necho at pknu period ac period kr comma 2 sub oskwon at ks …

In the paper we introduce classes of functions related to a class of linear combinations of two
convex functions. By using properties of multivalent prestarlike functions we obtain various …