The Fekete-Szego Problems for Subclass of Bi-Univalent Functions Associated with Sigmoid Function
| dc.contributor.author | Orhan, Halit | |
| dc.contributor.author | Murugusundaramoorthy, Gangadharan | |
| dc.contributor.author | Caglar, Murat | |
| dc.date.accessioned | 2026-03-26T14:46:51Z | |
| dc.date.available | 2026-03-26T14:46:51Z | |
| dc.date.issued | 2022 | |
| dc.description | Murugusundaramoorthy, Gangadharan/0000-0001-8285-6619 | en_US |
| dc.description.abstract | The purpose of this article is to introduce a new subclass of analytic and bi-univalent functions, in associated with sigmoid function and to investigate the upper bounds for |a(2)| and |a(3)|, where a(2), a(3) are the initial Taylor-Maclaurin coefficients. Further, we obtain the Fekete-Szego 5 inequalities for this subclass of the bi-univalent function class sigma. We also give several illustrative examples of the bi-univalent function class which we introduce here. | en_US |
| dc.identifier.doi | 10.22190/FUMI201022034O | |
| dc.identifier.issn | 0352-9665 | |
| dc.identifier.issn | 2406-047X | |
| dc.identifier.uri | https://doi.org/10.22190/FUMI201022034O | |
| dc.identifier.uri | https://hdl.handle.net/20.500.14901/2051 | |
| dc.language.iso | en | en_US |
| dc.publisher | Univ Nis | en_US |
| dc.relation.ispartof | Facta Universitatis-Series Mathematics and Informatics | en_US |
| dc.rights | info:eu-repo/semantics/openAccess | en_US |
| dc.subject | Analytic Functions | en_US |
| dc.subject | Univalent Functions | en_US |
| dc.subject | Bi-Univalent Functions | en_US |
| dc.subject | Sigmoid Function | en_US |
| dc.subject | Upper Bounds | en_US |
| dc.subject | Fekete-Szego Problem | en_US |
| dc.subject | Subordination Between Analytic Functions | en_US |
| dc.title | The Fekete-Szego Problems for Subclass of Bi-Univalent Functions Associated with Sigmoid Function | en_US |
| dc.type | Article | en_US |
| dspace.entity.type | Publication | |
| gdc.author.id | Murugusundaramoorthy, Gangadharan/0000-0001-8285-6619 | |
| gdc.author.wosid | Caglar, Murat/W-1165-2018 | |
| gdc.author.wosid | Murugusundaramoorthy, Gangadharan/J-6303-2013 | |
| gdc.description.department | Erzurum Technical University | en_US |
| gdc.description.departmenttemp | [Orhan, Halit] Ataturk Univ, Fac Sci, Dept Math, TR-25240 Erzurum, Turkey; [Murugusundaramoorthy, Gangadharan] Vellore Inst Technol, Sch Adv Sci, Dept Math, Vellore 632014, Tamil Nadu, India; [Caglar, Murat] Erzurum Tech Univ, Fac Sci, Dept Math, TR-25100 Erzurum, Turkey | en_US |
| gdc.description.endpage | 506 | en_US |
| gdc.description.issue | 3 | en_US |
| gdc.description.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | en_US |
| gdc.description.scopusquality | N/A | |
| gdc.description.startpage | 495 | en_US |
| gdc.description.volume | 37 | en_US |
| gdc.description.woscitationindex | Emerging Sources Citation Index | |
| gdc.description.wosquality | Q4 | |
| gdc.identifier.wos | WOS:000865954100004 | |
| gdc.index.type | WoS |