Estimates for the Variation of Functions Defined by Double Trigonometric Cosine Series
For functions of two variables defined by trigonometric cosine series with quasiconvex coefficients, we obtain estimates for their variations in the Hardy–Vitali sense.
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| Datum: | 2003 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | Russisch Englisch |
| Veröffentlicht: |
Institute of Mathematics, NAS of Ukraine
2003
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| Online Zugang: | https://umj.imath.kiev.ua/index.php/umj/article/view/3949 |
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| Назва журналу: | Ukrains’kyi Matematychnyi Zhurnal |
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Ukrains’kyi Matematychnyi Zhurnal| _version_ | 1860510080419495936 |
|---|---|
| author | Hembars'ka, S. B. Гембарская, С. В Гембарская, С. В |
| author_facet | Hembars'ka, S. B. Гембарская, С. В Гембарская, С. В |
| author_sort | Hembars'ka, S. B. |
| baseUrl_str | https://umj.imath.kiev.ua/index.php/umj/oai |
| collection | OJS |
| datestamp_date | 2020-03-18T20:16:01Z |
| description | For functions of two variables defined by trigonometric cosine series with quasiconvex coefficients, we obtain estimates for their variations in the Hardy–Vitali sense. |
| first_indexed | 2026-03-24T02:51:19Z |
| format | Article |
| fulltext |
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| id | umjimathkievua-article-3949 |
| institution | Ukrains’kyi Matematychnyi Zhurnal |
| keywords_txt_mv | keywords |
| language | rus English |
| last_indexed | 2026-03-24T02:51:19Z |
| publishDate | 2003 |
| publisher | Institute of Mathematics, NAS of Ukraine |
| record_format | ojs |
| resource_txt_mv | umjimathkievua/54/c9441aa70b92c20d0d9312124ae11e54.pdf |
| spelling | umjimathkievua-article-39492020-03-18T20:16:01Z Estimates for the Variation of Functions Defined by Double Trigonometric Cosine Series Оценки вариации функций, заданных двойными тригонометрическими рядами по косинусам Hembars'ka, S. B. Гембарская, С. В Гембарская, С. В For functions of two variables defined by trigonometric cosine series with quasiconvex coefficients, we obtain estimates for their variations in the Hardy–Vitali sense. Для функцій двох змінних, заданих тригонометричиими рядами по косинусах із квазіопуклими коефіцієнтами, одержано оцінки їх варіацій у розумінні Харді - Віталі. Institute of Mathematics, NAS of Ukraine 2003-06-25 Article Article application/pdf https://umj.imath.kiev.ua/index.php/umj/article/view/3949 Ukrains’kyi Matematychnyi Zhurnal; Vol. 55 No. 6 (2003); 733-749 Український математичний журнал; Том 55 № 6 (2003); 733-749 1027-3190 rus en https://umj.imath.kiev.ua/index.php/umj/article/view/3949/4611 https://umj.imath.kiev.ua/index.php/umj/article/view/3949/4612 Copyright (c) 2003 Hembars'ka S. B. |
| spellingShingle | Hembars'ka, S. B. Гембарская, С. В Гембарская, С. В Estimates for the Variation of Functions Defined by Double Trigonometric Cosine Series |
| title | Estimates for the Variation of Functions Defined by Double Trigonometric Cosine Series |
| title_alt | Оценки вариации функций, заданных двойными тригонометрическими рядами по косинусам |
| title_full | Estimates for the Variation of Functions Defined by Double Trigonometric Cosine Series |
| title_fullStr | Estimates for the Variation of Functions Defined by Double Trigonometric Cosine Series |
| title_full_unstemmed | Estimates for the Variation of Functions Defined by Double Trigonometric Cosine Series |
| title_short | Estimates for the Variation of Functions Defined by Double Trigonometric Cosine Series |
| title_sort | estimates for the variation of functions defined by double trigonometric cosine series |
| url | https://umj.imath.kiev.ua/index.php/umj/article/view/3949 |
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