Название: CHEBYSHEV POLYNOMIALS ON REGULAR POLYGONS IN THE COMPLEX PLANE
Авторы: Shcherbakova, E. O.
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https://elar.urfu.ru/handle/10995/157779
| Название: | CHEBYSHEV POLYNOMIALS ON REGULAR POLYGONS IN THE COMPLEX PLANE |
| Авторы: | Shcherbakova, E. O. |
| Дата публикации: | 2026 |
| Издатель: | N.N. Krasovskii Institute of Mathematics and Mechanics of the Ural Branch of Russian Academy of Sciences Ural Federal University named after the first President of Russia B.N. Yeltsin |
| Библиографическое описание: | Shcherbakova E. O. CHEBYSHEV POLYNOMIALS ON REGULAR POLYGONS IN THE COMPLEX PLANE / E. O. Shcherbakova. — Text : electronic // Ural Mathematical Journal. — 2026. — Volume 12. — № 1. — P. 138-151. |
| Аннотация: | The Chebyshev problem is studied for a regular m-gon Gm, m ≥ 3, in the complex plane ℂ. Let n1 be the set of algebraic polynomials of a given degree n with unit leading coefficient. The problem is to find the smallest value τn(Gm) of the uniform norm ∥pn∥C(Gm) on the polygon Gm for polynomials pn ∈ n1, and a polynomial with the smallest norm, called the Chebyshev polynomial (for the polygon). We restrict the class of polynomials in the problem and reduce the domain on which an equivalent problem is studied for polynomials of a substantially lower degree. An exact solution of the problem is given for polynomials of degrees n = 1, 2,…,m. |
| Ключевые слова: | CHEBYSHEV PROBLEM CHEBYSHEV POLYNOMIALS UNIFORM NORM REGULAR POLYGONS IN THE COMPLEX PLANE |
| URI: | https://elar.urfu.ru/handle/10995/157779 |
| Условия доступа: | Creative Commons Attribution License |
| Текст лицензии: | https://creativecommons.org/licenses/by/4.0/ |
| Идентификатор РИНЦ: | 91852797 |
| EDN: | VUICZZ |
| ISSN: | 2414-3952 |
| DOI: | 10.15826/umj.2026.1.010 |
| Сведения о поддержке: | The author expresses gratitude to Professor V. V. Arestov for his valuable remarks and attention to the study. |
| Источники: | Ural Mathematical Journal. 2026. Volume 12. № 1 |
| Располагается в коллекциях: | Ural Mathematical Journal |
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| Файл | Описание | Размер | Формат | |
|---|---|---|---|---|
| umj_2026_12_1_011.pdf | 223,66 kB | Adobe PDF | Просмотреть/Открыть |
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