A unified approach for univalent functions with negative coefficients using the Hadamard product
For given analytic functions ϕ(z) = z + Σ n=2 ∞ λ n z n , Ψ(z) = z + Σ n=2 ∞ μ with λ n ≥ 0, μ n ≥ 0, and λ n ≥ μ n and for α, β (0≤α
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| Datum: | 1997 |
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| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | Englisch |
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Institute of Mathematics, NAS of Ukraine
1997
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| Online Zugang: | https://umj.imath.kiev.ua/index.php/umj/article/view/5113 |
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| Назва журналу: | Ukrains’kyi Matematychnyi Zhurnal |
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Ukrains’kyi Matematychnyi Zhurnal| _version_ | 1860511309676675072 |
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| author | Assiri, E. Q. Mogra, M. L. Ассірі, Є. В. Могра, М. Л. |
| author_facet | Assiri, E. Q. Mogra, M. L. Ассірі, Є. В. Могра, М. Л. |
| author_sort | Assiri, E. Q. |
| baseUrl_str | https://umj.imath.kiev.ua/index.php/umj/oai |
| collection | OJS |
| datestamp_date | 2020-03-18T21:25:05Z |
| description | For given analytic functions ϕ(z) = z + Σ n=2 ∞ λ n z n , Ψ(z) = z + Σ n=2 ∞ μ with λ n ≥ 0, μ n ≥ 0, and λ n ≥ μ n and for α, β (0≤α |
| first_indexed | 2026-03-24T03:10:51Z |
| format | Article |
| fulltext |
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| id | umjimathkievua-article-5113 |
| institution | Ukrains’kyi Matematychnyi Zhurnal |
| keywords_txt_mv | keywords |
| language | English |
| last_indexed | 2026-03-24T03:10:51Z |
| publishDate | 1997 |
| publisher | Institute of Mathematics, NAS of Ukraine |
| record_format | ojs |
| resource_txt_mv | umjimathkievua/92/63b5bf39d59ad5e88c7ef0a9589d9d92.pdf |
| spelling | umjimathkievua-article-51132020-03-18T21:25:05Z A unified approach for univalent functions with negative coefficients using the Hadamard product Єдиний підхід для унівалентніх функцій з від'ємними коефіцієнтами з використанням продукту Адамара Assiri, E. Q. Mogra, M. L. Ассірі, Є. В. Могра, М. Л. For given analytic functions ϕ(z) = z + Σ n=2 ∞ λ n z n , Ψ(z) = z + Σ n=2 ∞ μ with λ n ≥ 0, μ n ≥ 0, and λ n ≥ μ n and for α, β (0≤α Нехай в $U = {z:\; |z| < 1}$ задані аналітичні функції $ϕ(z) = z + \sum_{n=2}^{∞} λ_n z^n ,\; Ψ(z) = z + \sum_{n=2}^{∞} μ_n z^n , де $λ_n ≥ 0,\; μ_n ≥ 0$ і $λ_n ≥ μ_n$ і $E(φ,ψ; α, β)$, $0≤α Institute of Mathematics, NAS of Ukraine 1997-09-25 Article Article application/pdf https://umj.imath.kiev.ua/index.php/umj/article/view/5113 Ukrains’kyi Matematychnyi Zhurnal; Vol. 49 No. 9 (1997); 1162–1170 Український математичний журнал; Том 49 № 9 (1997); 1162–1170 1027-3190 en https://umj.imath.kiev.ua/index.php/umj/article/view/5113/6922 https://umj.imath.kiev.ua/index.php/umj/article/view/5113/6923 Copyright (c) 1997 Assiri E. Q.; Mogra M. L. |
| spellingShingle | Assiri, E. Q. Mogra, M. L. Ассірі, Є. В. Могра, М. Л. A unified approach for univalent functions with negative coefficients using the Hadamard product |
| title | A unified approach for univalent functions with negative coefficients using the Hadamard product |
| title_alt | Єдиний підхід для унівалентніх функцій з від'ємними коефіцієнтами з використанням продукту Адамара |
| title_full | A unified approach for univalent functions with negative coefficients using the Hadamard product |
| title_fullStr | A unified approach for univalent functions with negative coefficients using the Hadamard product |
| title_full_unstemmed | A unified approach for univalent functions with negative coefficients using the Hadamard product |
| title_short | A unified approach for univalent functions with negative coefficients using the Hadamard product |
| title_sort | unified approach for univalent functions with negative coefficients using the hadamard product |
| url | https://umj.imath.kiev.ua/index.php/umj/article/view/5113 |
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