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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">10.22405/2226-8383-2023-24-1-50-68</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1473</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>Регуляризованная асимптотика решения сингулярно возмущенной смешанной задачи на полуоси для уравнения типа Шредингера при наличии сильной точки поворота у предельного оператора</article-title><trans-title-group xml:lang="en"><trans-title>Regularized asymptotics of the solution of a singularly perturbed mixed problem on the semiaxis for an equation of Schrodinger type in the presence of a strong turning point for the limit operator</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>Елисеев</surname><given-names>Александр Георгиевич</given-names></name><name name-style="western" xml:lang="en"><surname>Eliseev</surname><given-names>Alexander Georgievich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, доцент</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical science, associate professor</p></bio><email xlink:type="simple">yeliseevag@mpei.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>Кириченко</surname><given-names>Павел Владимирович</given-names></name><name name-style="western" xml:lang="en"><surname>Kirichenko</surname><given-names>Pavel Vladimirovich</given-names></name></name-alternatives><email xlink:type="simple">kirichenkopv@mpei.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Национальный исследовательский университет «МЭИ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research University “Moscow Power Engineering Institute”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>24</day><month>05</month><year>2023</year></pub-date><volume>24</volume><issue>1</issue><fpage>50</fpage><lpage>68</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Елисеев А.Г., Кириченко П.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Елисеев А.Г., Кириченко П.В.</copyright-holder><copyright-holder xml:lang="en">Eliseev A.G., Kirichenko P.V.</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/1473">https://www.chebsbornik.ru/jour/article/view/1473</self-uri><abstract><p>В предложенной работе выполнено построение регуляризованной асимптотики решения сингулярно возмущенной неоднородной смешанной задачи на полуоси, возникающей при квазиклассическом переходе в уравнении Шредингера в координатном представлении.Выбранный в работе профиль потенциальной энергии приводит к особенности в спектре предельного оператора в виде сильной точки поворота. Опираясь на идеи асимптотического интегрирования задач с нестабильным спектром С.А. Ломова и А.Г. Елисеева, указано каким образом и из каких соображений следует вводить регуляризирующие функции и дополнительные регуляризирующие операторы, подробно описан формализм метода регуляризации для поставленной задачи, проведено обоснование этого алгоритма и построено асимптотической решение любого порядка по малому параметру.</p></abstract><trans-abstract xml:lang="en"><p>In the proposed work we construct a regularized asymptotics for the solution of a singularly perturbed inhomogeneous mixed problem on the half-axis arising from a semiclassical transition in the Schrodinger equation in the coordinate representation. The potential energy profile chosen in the paper leads to a singularity in the spectrum of the limit operator in the form strong the turning point. Based on the ideas of asymptotic integration of problems with an unstable spectrum by S.A. Lomov and A.G. Eliseev, it is indicated how and from what considerations regularizing functions and additional regularizing operators should be introduced, the formalism of the regularization method for the problem posed is described in detail, and justification of this algorithm and an asymptotic solution of any order with respect to a small parameter is constructed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сингулярно возмущенная задача</kwd><kwd>асимптотическое решение</kwd><kwd>метод регуляризации</kwd><kwd>точка поворота.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>singularly perturbed problem</kwd><kwd>asymptotic solution</kwd><kwd>regularization method</kwd><kwd>turning point.</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Результаты Елисеева А. 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