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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">10.22405/2226-8383-2025-26-3-174-184</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-2012</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>Разложение решений начально-краевых задач для уравнения теплопроводности в ряды полиномов Эрмита</article-title><trans-title-group xml:lang="en"><trans-title>Expansion of the initial-boundary value problem solution for the heat equation into Hermite polynomial series</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>Нижников</surname><given-names>Александр Иванович</given-names></name><name name-style="western" xml:lang="en"><surname>Nizhnikov</surname><given-names>Alexander Ivanovich</given-names></name></name-alternatives><email xlink:type="simple">nizhnikov.ai@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яремко</surname><given-names>Олег Эммануилович</given-names></name><name name-style="western" xml:lang="en"><surname>Yaremko</surname><given-names>Oleg Emmanuilovich</given-names></name></name-alternatives><email xlink:type="simple">yaremki8@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Яремко</surname><given-names>Наталья Николаевна</given-names></name><name name-style="western" xml:lang="en"><surname>Yaremko</surname><given-names>Natalya Nikolaevna</given-names></name></name-alternatives><email xlink:type="simple">yaremki@yandex.ru</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский педагогический государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow State Pedagogical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Московский государственный технический университет «Станкин»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow State Technical University “Stankin”</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Национальный исследовательский технологический университет «МИСиС»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Technological University “MISiS”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>01</day><month>11</month><year>2025</year></pub-date><volume>26</volume><issue>3</issue><fpage>174</fpage><lpage>184</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Нижников А.И., Яремко О.Э., Яремко Н.Н., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Нижников А.И., Яремко О.Э., Яремко Н.Н.</copyright-holder><copyright-holder xml:lang="en">Nizhnikov A.I., Yaremko O.E., Yaremko N.N.</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/2012">https://www.chebsbornik.ru/jour/article/view/2012</self-uri><abstract><p>Решение начально-краевых задач для уравнения теплопроводности представляется в виде разложения в ряд полиномов Эрмита. Для задачи Коши и ретроспективной задачиКоши найдены коэффициенты разложения решения в ряды по полиномам Эрмита. Исследована связь преобразования Лапласа и рядов по полиномам Эрмита. Найдена новая формула обращения интегрального преобразования Лапласа по значениям изображения на действительной полуоси. Функция оригинал строится как сумма квазистепенного ряда. Получена формула для изображения Лапласа в виде суммы квазистепенного ряда. Решеназадача восстановления температурного поля неограниченного стержня по его моментам.</p></abstract><trans-abstract xml:lang="en"><p>The initial boundary value problems solution for the heat equation is represented as a decomposition into a series of Hermite polynomials. For the Cauchy problem and the Cauchy retrospective problem, the coefficients of the solution expansion into series by Hermite polynomials are found. The relationship between the Laplace transform and the Hermite polynomial series is investigated. A new formula for inverting the integral Laplace transform with respect to the values of the image on the real half- axis is found. The original function is constructed as the sum of a quasi-series. A formula is obtained for the Laplace representation as the sum of a quasi-minor series.The problem of reconstructing the temperature field of an unlimited rod based on its moments has been solved.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>полином Эрмита</kwd><kwd>преобразование Фурье</kwd><kwd>преобразование Лапласа</kwd><kwd>задача Коши</kwd><kwd>ретроспективная задача</kwd><kwd>смешанная краевая задача.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Hermite polynomial</kwd><kwd>Fourier transform</kwd><kwd>Laplace transform</kwd><kwd>Cauchy problem</kwd><kwd>retrospective problem</kwd><kwd>initial-boundary value problem.</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при поддержке Министерства науки и высшего образования Российской Федерации (проект № FSFS-2024-0007)</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Владимиров В.С., Михайлов В.П., Вашарин А.А. и др. 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