{"title":"Bi-concave Functions Defined by Al-Oboudi Differential Operator","authors":"Ş. Altınkaya","doi":"10.52547/ijmsi.17.1.207","DOIUrl":null,"url":null,"abstract":". The purpose of the present paper is to introduce a class D n Σ; δ C 0 ( α ) of bi-concave functions defined by Al-Oboudi differential operator. We find estimates on the Taylor-Maclaurin coefficients | a 2 | and | a 3 | for functions in this class. Several consequences of these results are also pointed out in the form of corollaries.","PeriodicalId":43670,"journal":{"name":"Iranian Journal of Mathematical Sciences and Informatics","volume":" ","pages":""},"PeriodicalIF":0.4000,"publicationDate":"2022-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Iranian Journal of Mathematical Sciences and Informatics","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.52547/ijmsi.17.1.207","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"MATHEMATICS","Score":null,"Total":0}
引用次数: 1
Abstract
. The purpose of the present paper is to introduce a class D n Σ; δ C 0 ( α ) of bi-concave functions defined by Al-Oboudi differential operator. We find estimates on the Taylor-Maclaurin coefficients | a 2 | and | a 3 | for functions in this class. Several consequences of these results are also pointed out in the form of corollaries.
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