On fekete-szegö problems for a subclass of analytic functions
The aim of this paper is to determine the Fekete-Szegö inequalities for a normalised analytic function f (z) defined on the open unit disc for which z(Dλ1,λ2 ,δ m,b f (z))′ / (Dλ1,λ2 ,δ m,b f (z)),δ ,m,b ∈N0 ,λ2 ≥ λ1 ≥ 0 lies in a region starlike with respect to 1 and it is symmetric with respe...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Penerbit Universiti Kebangsaan Malaysia
2014
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| Online Access: | http://journalarticle.ukm.my/8291/ http://journalarticle.ukm.my/8291/1/jqma-10-1-paper2.pdf |
| _version_ | 1848811753504243712 |
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| author | Entisar El-Yagubi, Maslina Darus, |
| author_facet | Entisar El-Yagubi, Maslina Darus, |
| author_sort | Entisar El-Yagubi, |
| building | UKM Institutional Repository |
| collection | Online Access |
| description | The aim of this paper is to determine the Fekete-Szegö inequalities for a
normalised analytic function f (z) defined on the open unit disc for which
z(Dλ1,λ2 ,δ
m,b f (z))′ / (Dλ1,λ2 ,δ
m,b f (z)),δ ,m,b ∈N0 ,λ2 ≥ λ1 ≥ 0 lies in a region starlike with respect to 1 and it
is symmetric with respect to the real axis by using the operator Dλ1,λ2 ,δ
m,b f (z) given recently by the
authors. As a special case of this result, Fekete-Szegö inequality for a class of functions defined
by fractional derivatives is also obtained. |
| first_indexed | 2025-11-14T23:51:25Z |
| format | Article |
| id | oai:generic.eprints.org:8291 |
| institution | Universiti Kebangasaan Malaysia |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-14T23:51:25Z |
| publishDate | 2014 |
| publisher | Penerbit Universiti Kebangsaan Malaysia |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | oai:generic.eprints.org:82912016-12-14T06:46:48Z http://journalarticle.ukm.my/8291/ On fekete-szegö problems for a subclass of analytic functions Entisar El-Yagubi, Maslina Darus, The aim of this paper is to determine the Fekete-Szegö inequalities for a normalised analytic function f (z) defined on the open unit disc for which z(Dλ1,λ2 ,δ m,b f (z))′ / (Dλ1,λ2 ,δ m,b f (z)),δ ,m,b ∈N0 ,λ2 ≥ λ1 ≥ 0 lies in a region starlike with respect to 1 and it is symmetric with respect to the real axis by using the operator Dλ1,λ2 ,δ m,b f (z) given recently by the authors. As a special case of this result, Fekete-Szegö inequality for a class of functions defined by fractional derivatives is also obtained. Penerbit Universiti Kebangsaan Malaysia 2014-07 Article PeerReviewed application/pdf en http://journalarticle.ukm.my/8291/1/jqma-10-1-paper2.pdf Entisar El-Yagubi, and Maslina Darus, (2014) On fekete-szegö problems for a subclass of analytic functions. Journal of Quality Measurement and Analysis, 10 (1). pp. 17-26. ISSN 1823-5670 http://www.ukm.my/jqma/index.html |
| spellingShingle | Entisar El-Yagubi, Maslina Darus, On fekete-szegö problems for a subclass of analytic functions |
| title | On fekete-szegö problems for a subclass of analytic functions |
| title_full | On fekete-szegö problems for a subclass of analytic functions |
| title_fullStr | On fekete-szegö problems for a subclass of analytic functions |
| title_full_unstemmed | On fekete-szegö problems for a subclass of analytic functions |
| title_short | On fekete-szegö problems for a subclass of analytic functions |
| title_sort | on fekete-szegö problems for a subclass of analytic functions |
| url | http://journalarticle.ukm.my/8291/ http://journalarticle.ukm.my/8291/ http://journalarticle.ukm.my/8291/1/jqma-10-1-paper2.pdf |