ON COMPLEX HARMONIC TYPICALLY-REAL FUNCTIONS WITH A POLE AT THE POINT ZERO

Journal Title: Проблемы анализа-Issues of Analysis - Year 2006, Vol 13, Issue

Abstract

Several mathematicians examined classes of meromorphic typically-real functions with a simple pole at the point zero. This article includes results concern class Q' H of complex harmonic typically-real functions with a pole at the point zero. There are determined the relationships between this class and the class Q' r of meromorphic typically-real funtions with a pole at the origin, which was investigated by S. A. Gelfer [4]. We present also coefficient estimates for functions of a subclass of the class Q' H and properties of the Hadamard product with fuctions of the class Q' H.

Authors and Affiliations

Z. J. JAKUBOWSKI, A. SIBELSKA

Keywords

Related Articles

ON SOME CLASSES OF HARMONIC FUNCTIONS WITH CONDITIONS IMPOSED ON COEFFICIENTS AND THEIR ARGUMENTS

In this paper we consider a few classes of functions f harmonic in the unit disc ∆ of the form f = h+ \overline{g}, where h, g are suitably normalized functions holomorphic in ∆. Our special attention is drawn to some cl...

Sharp estimates of products of inner radii of non-overlapping domains in the complex plane

In the paper we study a generalization of the extremal problem of geometric theory of functions of a complex variable on non-overlapping domains with free poles: Fix any γ ∈ R + and find the maximum (and describe all ext...

EXTENSION OF THE REFINED GIBBS INEQUALITY

In this note, we give an extension of the refined Gibbs' inequality containing arithmetic and geometric means. As an application, we obtain converse and refinement of the arithmetic-geometric mean inequality.

ON METRIC SPACE VALUED FUNCTIONS OF BOUNDED ESSENTIAL VARIATION

Let ∅≠T ⊂ R and let X be a metric space. For an ideal J ⊂ P(T) and a function f:T-> X, we define the essential variation V^J ess(f, T) as the in mum of all variations V (g; T) where g:T-> X, g = f on T\E, and E in J. We...

GENERALIZED RESOLVENTS OF OPERATORS GENERATED BY INTEGRAL EQUATIONS

We define a minimal operator L_0 generated by an integral equation with an operator measure and give a description of the adjoint operator L∗_0. We prove that every generalized resolvent of L_0 is an integral operator an...

Download PDF file
  • EP ID EP243952
  • DOI -
  • Views 106
  • Downloads 0

How To Cite

Z. J. JAKUBOWSKI, A. SIBELSKA (2006). ON COMPLEX HARMONIC TYPICALLY-REAL FUNCTIONS WITH A POLE AT THE POINT ZERO. Проблемы анализа-Issues of Analysis, 13(), 112-123. https://europub.co.uk./articles/-A-243952