Subordination Implications and Coefficient Estimates for Subclasses of Starlike Functions

In the present paper, we consider various subclasses of star-like functions, which are defined by subordination and then we obtain several subordination implications related to these subclasses. Some coefficient bounds for functions belonging to some subclasses of star-like functions are also estima...

Full description

Bibliographic Details
Main Authors: Nak Eun Cho, Ali Ebadian, Serap Bulut, Ebrahim Analouei Adegani
Format: Article
Language:English
Published: MDPI AG 2020-07-01
Series:Mathematics
Subjects:
Online Access:https://www.mdpi.com/2227-7390/8/7/1150
_version_ 1797562564359487488
author Nak Eun Cho
Ali Ebadian
Serap Bulut
Ebrahim Analouei Adegani
author_facet Nak Eun Cho
Ali Ebadian
Serap Bulut
Ebrahim Analouei Adegani
author_sort Nak Eun Cho
collection DOAJ
description In the present paper, we consider various subclasses of star-like functions, which are defined by subordination and then we obtain several subordination implications related to these subclasses. Some coefficient bounds for functions belonging to some subclasses of star-like functions are also estimated. Moreover, we give some related connections of the outcomes stated here with those obtained earlier.
first_indexed 2024-03-10T18:30:01Z
format Article
id doaj.art-d2aa864b0ab54d1fa0c47a184f8da840
institution Directory Open Access Journal
issn 2227-7390
language English
last_indexed 2024-03-10T18:30:01Z
publishDate 2020-07-01
publisher MDPI AG
record_format Article
series Mathematics
spelling doaj.art-d2aa864b0ab54d1fa0c47a184f8da8402023-11-20T06:42:17ZengMDPI AGMathematics2227-73902020-07-0187115010.3390/math8071150Subordination Implications and Coefficient Estimates for Subclasses of Starlike FunctionsNak Eun Cho0Ali Ebadian1Serap Bulut2Ebrahim Analouei Adegani3Department of Applied Mathematics, College of Natural Sciences, Pukyong National University, Busan 608-737, KoreaDepartment of Mathematics, Faculty of Science, Urmia University, Urmia 5756151818, IranFaculty of Aviation and Space Sciences, Arslanbey Campus, Kocaeli University, 41285 Kartepe-Kocaeli, TurkeyDepartment of Mathematics, Faculty of Science, Urmia University, Urmia 5756151818, IranIn the present paper, we consider various subclasses of star-like functions, which are defined by subordination and then we obtain several subordination implications related to these subclasses. Some coefficient bounds for functions belonging to some subclasses of star-like functions are also estimated. Moreover, we give some related connections of the outcomes stated here with those obtained earlier.https://www.mdpi.com/2227-7390/8/7/1150analytic functionsstar-like functionssubordination
spellingShingle Nak Eun Cho
Ali Ebadian
Serap Bulut
Ebrahim Analouei Adegani
Subordination Implications and Coefficient Estimates for Subclasses of Starlike Functions
Mathematics
analytic functions
star-like functions
subordination
title Subordination Implications and Coefficient Estimates for Subclasses of Starlike Functions
title_full Subordination Implications and Coefficient Estimates for Subclasses of Starlike Functions
title_fullStr Subordination Implications and Coefficient Estimates for Subclasses of Starlike Functions
title_full_unstemmed Subordination Implications and Coefficient Estimates for Subclasses of Starlike Functions
title_short Subordination Implications and Coefficient Estimates for Subclasses of Starlike Functions
title_sort subordination implications and coefficient estimates for subclasses of starlike functions
topic analytic functions
star-like functions
subordination
url https://www.mdpi.com/2227-7390/8/7/1150
work_keys_str_mv AT nakeuncho subordinationimplicationsandcoefficientestimatesforsubclassesofstarlikefunctions
AT aliebadian subordinationimplicationsandcoefficientestimatesforsubclassesofstarlikefunctions
AT serapbulut subordinationimplicationsandcoefficientestimatesforsubclassesofstarlikefunctions
AT ebrahimanaloueiadegani subordinationimplicationsandcoefficientestimatesforsubclassesofstarlikefunctions