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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">10.22405/2226-8383-2026-27-1-153-165</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-2191</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>История математики и приложений</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Сomputer science</subject></subj-group></article-categories><title-group><article-title>Анализ сходимости метода спектральных элементов на примере задачи Лэмба в сравнении с аналитическим решением</article-title><trans-title-group xml:lang="en"><trans-title>Convergence analysis of the spectral element method on the example of the Lamb problem in comparison with the analytical solution</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>Левин</surname><given-names>Владимир Анатольевич</given-names></name><name name-style="western" xml:lang="en"><surname>Levin</surname><given-names>Vladimir Anatol’evich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences, professor</p></bio><email xlink:type="simple">v.a.levin@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>Вершинин</surname><given-names>Анатолий Викторович</given-names></name><name name-style="western" xml:lang="en"><surname>Vershinin</surname><given-names>Anatoliy Victorovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, научный сотрудник</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences</p></bio><email xlink:type="simple">versh1984@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>Зингерман</surname><given-names>Константин Моисеевич</given-names></name><name name-style="western" xml:lang="en"><surname>Zingerman</surname><given-names>Konstantin Moiseevich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences, professor</p></bio><email xlink:type="simple">zingerman@rambler.ru</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>Уханов</surname><given-names>Евгений Михайлович</given-names></name><name name-style="western" xml:lang="en"><surname>Ukhanov</surname><given-names>Evgeny Mikhailovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p></bio><bio xml:lang="en"><p>student</p></bio><email xlink:type="simple">evgenii.ukhanov@math.msu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет им. М. В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Тверской государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tver State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>15</day><month>04</month><year>2026</year></pub-date><volume>27</volume><issue>1</issue><fpage>153</fpage><lpage>165</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Левин В.А., Вершинин А.В., Зингерман К.М., Уханов Е.М., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Левин В.А., Вершинин А.В., Зингерман К.М., Уханов Е.М.</copyright-holder><copyright-holder xml:lang="en">Levin V.A., Vershinin A.V., Zingerman K.M., Ukhanov E.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/2191">https://www.chebsbornik.ru/jour/article/view/2191</self-uri><abstract><p>Выполнен анализ сходимости метода спектральных элементов (одной из современных модификаций метода конечных элементов) для динамической задачи теории упругости посредством сравнения численного решения с аналитическим решением задачи Лэмба —задачи о динамическом воздействии на границу полуплоскости или полупространства сосредоточенной или распределенной нагрузкой, меняющейся по некоторому временномузакону. В статье рассматривается воздействие на границу нагрузкой, меняющейся по временному закону Берлаге. Расчеты выполнены с использованием отечественного прочностного программного пакета «Фидесис». Приводятся графики распределения напряжений для исследуемого материала. Исследована зависимость погрешности численного решенияот порядка элементов при фиксированном количестве точек на длину волны Рэлея.</p></abstract><trans-abstract xml:lang="en"><p>The convergence analysis of the spectral element method (one of the modern modifications of the finite element method) for the dynamic problem of elasticity theory is performed by comparing the numerical solution with the analytical solution of the Lamb problem — theproblem of dynamic action on the boundary of a half-plane or half-space by a concentrated or distributed load changing according to some time law. The article considers the effect on the boundary of a load changing according to the Berlage time law. The calculations areperformed using the domestic strength software package “Fidesys”. Stress distribution graphs for the material under study are given. The dependence of the error of the numerical solution on the order of elements for a fixed number of points per Rayleigh wavelength is investigated.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>задача Лэмба</kwd><kwd>закон Берлаге</kwd><kwd>метод конечных элементов</kwd><kwd>метод спектральных элементов</kwd><kwd>погрешность численного решения.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Lamb’s problem</kwd><kwd>Berlage’s law</kwd><kwd>finite element method</kwd><kwd>spectral element method</kwd><kwd>numerical solution error.</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена в Московском государственном университете им. М. В. Ломоносова при поддержке Российского научного фонда (проект 22-11-00110).</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">Lamb H. On the Propagation of Tremors over the Surface of an Elastic Solid. Philosophical Transactions of the Royal Society of London. Ser. A. 1904, vol. 203, pp. 1—42.</mixed-citation><mixed-citation xml:lang="en">Lamb, H. 1904, “On the propagation of Tremors over the Surface of an Elastic Solid”, Philosophical Transactions of the Royal Society of London. Series A, vol. 203, pp. 1–42.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Lamb H. On waves due to a travelling disturbance, with an application to waves in superposed fluids. 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