On Sandwich-Type Results for a Subclass of Certain Univalent Functions Using a New Hadamard Product Operator

This paper is concerned with studying some results by introducing a new Hadamard product Mγ,b,v,δC,η operator for differential subordination and superordination for certain univalent functions in the open unit disc U. Firstly, we state some basic definitions and required theorems. Furthermore. Some...

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Bibliographic Details
Published inSymmetry (Basel) Vol. 14; no. 5; p. 931
Main Authors Sabri, Mustafa A., Atshan, Waggas Galib, El-Seidy, Essam
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.05.2022
Subjects
analytic function
differential subordination
dominant
Hadamard product
Operators (mathematics)
sandwich theorem
subordinate
Theorems
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Summary:This paper is concerned with studying some results by introducing a new Hadamard product Mγ,b,v,δC,η operator for differential subordination and superordination for certain univalent functions in the open unit disc U. Firstly, we state some basic definitions and required theorems. Furthermore. Some sandwich theorems are derived. The differential subordination theory’s features and outcomes are symmetric to those derived using the differential superordination theory.
ISSN:2073-8994
2073-8994
DOI:10.3390/sym14050931