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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2023-24-4-212-238</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1602</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Инвариантные дифференциальные полиномы</article-title><trans-title-group xml:lang="en"><trans-title>Invariant differential polynomials</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Малышев</surname><given-names>Фёдор Михайлович</given-names></name><name name-style="western" xml:lang="en"><surname>Malyshev</surname><given-names>Fyodor Mikhailovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences</p></bio><email xlink:type="simple">malyshevfm@mi-ras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Математический институт им. В.А. Стеклова Российской академии наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Steklov Mathematical Institute of Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>25</day><month>01</month><year>2024</year></pub-date><volume>24</volume><issue>4</issue><fpage>212</fpage><lpage>238</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Малышев Ф.М., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Малышев Ф.М.</copyright-holder><copyright-holder xml:lang="en">Malyshev F.M.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.chebsbornik.ru/jour/article/view/1602">https://www.chebsbornik.ru/jour/article/view/1602</self-uri><abstract><p>На основе предлагаемого в статье способа решения так называемых (𝑟, 𝑠)-систем линейных уравнений доказано, что порядки однородных инвариантных дифференциальных операторов 𝑛 гладких вещественных функций одной переменной принимают значения от 𝑛 до (𝑛(𝑛+1))/2, а размерность пространства всех таких операторов не превосходит 𝑛!. Получена классификация инвариантных дифференциальных операторов порядка 𝑛 + 𝑠 для 𝑠 = 1, 2, 3, 4, а при 𝑛 = 4 для всех порядков от 4 до 10. Единственные с точностью до множителей однородные инвариантные дифференциальные операторы самого маленькогопорядка 𝑛 и самого большого порядка (𝑛(𝑛+1))/2 предоставлены, соответственно, произведением 𝑛 первых дифференциалов (𝑠 = 0) и вронскианом (𝑠 = (𝑛 − 1)𝑛/2). Доказано существование ненулевых однородных инвариантных дифференциальных операторов порядка 𝑛 + 𝑠 для 𝑠 &lt; ((1+√5)/2)*(𝑛 − 1).</p></abstract><trans-abstract xml:lang="en"><p>Based on the method proposed in the article for solving the so-called (𝑟, 𝑠)-systems of linear equations proven that the orders of homogeneous invariant differential operators 𝑛 of smooth real functions of one variable take values from 𝑛 to (𝑛(𝑛+1))/2 , and the dimension of the space of all such operators does not exceed 𝑛!. A classification of invariant differential operators of order 𝑛 + 𝑠 is obtained for 𝑠 = 1, 2, 3, 4, and for 𝑛 = 4 for all orders from 4 to 10. The only, up to factors, homogeneous invariant differential operators of the smallest order 𝑛 and the largest order (𝑛(𝑛+1))/2 are given, respectively, by the product of the 𝑛 first differentials (𝑠 = 0 ) andthe Wronskian (𝑠 = (𝑛 − 1)𝑛/2). The existence of nonzero homogeneous invariant differential operators of order 𝑛 + 𝑠 for 𝑠 &lt;((1+√5)/2)*(𝑛 − 1) is proved.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>Производная</kwd><kwd>дифференциал</kwd><kwd>система линейных уравнений</kwd><kwd>симплекс</kwd><kwd>инвариантный дифференциальный оператор.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Derivative</kwd><kwd>differential</kwd><kwd>system of linear equations</kwd><kwd>simplex</kwd><kwd>invariant differential operator.</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Архипов Г.И., Садовничий В.А., Чубариков В.Н. 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