Subclass of m-quasiconformal harmonic functions in association with Janowski starlike functions

F. M. Sakar, M. Aydoğan*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)

Abstract

Let's take f(z)=h(z)+g(z)¯ which is an univalent sense-preserving harmonic functions in open unit disc D={z:|z|<1}. If f(z) fulfills |w(z)|=|[Formula presented]|<m, where 0 ≤ m < 1, then f(z) is known m-quasiconformal harmonic function in the unit disc (Kalaj, 2010) [8]. This class is represented by SH(m). The goal of this study is to introduce certain features of the solution for non-linear partial differential equation f¯=w(z)f(z) when |w(z)| < m, w(z)≺[Formula presented], h(z) ∈ S*(A, B). In such case S*(A, B) is known to be the class for Janowski starlike functions. We will investigate growth theorems, distortion theorems, jacobian bounds and coefficient ineqaulities, convex combination and convolution properties for this subclass.

Original languageEnglish
Pages (from-to)461-468
Number of pages8
JournalApplied Mathematics and Computation
Volume319
DOIs
Publication statusPublished - 15 Feb 2018
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2017

Keywords

  • Convex combination
  • Convolution properties
  • Distortion theorem
  • Growth theorem
  • Harmonic mapping
  • Starlike functions

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