Harmonic Starlike Functions with Respect to Symmetric Points

In the paper we define classes of harmonic starlike functions with respect to symmetric points and obtain some analytic conditions for these classes of functions. Some results connected to subordination properties, coefficient estimates, integral representation, and distortion theorems are also obta...

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Main Authors: Nak Eun Cho, Jacek Dziok
Format: Article
Language:English
Published: MDPI AG 2019-12-01
Series:Axioms
Subjects:
Online Access:https://www.mdpi.com/2075-1680/9/1/3
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author Nak Eun Cho
Jacek Dziok
author_facet Nak Eun Cho
Jacek Dziok
author_sort Nak Eun Cho
collection DOAJ
description In the paper we define classes of harmonic starlike functions with respect to symmetric points and obtain some analytic conditions for these classes of functions. Some results connected to subordination properties, coefficient estimates, integral representation, and distortion theorems are also obtained.
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spelling doaj.art-76b39524d72946729cddac3b7ab9bf012022-12-22T00:20:02ZengMDPI AGAxioms2075-16802019-12-0191310.3390/axioms9010003axioms9010003Harmonic Starlike Functions with Respect to Symmetric PointsNak Eun Cho0Jacek Dziok1Department of Applied Mathematics, College of Natural Sciences, Pukyong National University, Busan 608-737, KoreaFaculty of Mathematics and Natural Sciences, University of Rzeszow, aleja Tadeusza Rejtana 16C, 35-310 Rzeszów, PolandIn the paper we define classes of harmonic starlike functions with respect to symmetric points and obtain some analytic conditions for these classes of functions. Some results connected to subordination properties, coefficient estimates, integral representation, and distortion theorems are also obtained.https://www.mdpi.com/2075-1680/9/1/3harmonic functionsjanowski functionsstarlike functionsextreme pointssubordination
spellingShingle Nak Eun Cho
Jacek Dziok
Harmonic Starlike Functions with Respect to Symmetric Points
Axioms
harmonic functions
janowski functions
starlike functions
extreme points
subordination
title Harmonic Starlike Functions with Respect to Symmetric Points
title_full Harmonic Starlike Functions with Respect to Symmetric Points
title_fullStr Harmonic Starlike Functions with Respect to Symmetric Points
title_full_unstemmed Harmonic Starlike Functions with Respect to Symmetric Points
title_short Harmonic Starlike Functions with Respect to Symmetric Points
title_sort harmonic starlike functions with respect to symmetric points
topic harmonic functions
janowski functions
starlike functions
extreme points
subordination
url https://www.mdpi.com/2075-1680/9/1/3
work_keys_str_mv AT nakeuncho harmonicstarlikefunctionswithrespecttosymmetricpoints
AT jacekdziok harmonicstarlikefunctionswithrespecttosymmetricpoints