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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">matmess</journal-id><journal-title-group><journal-title xml:lang="ru">Математические заметки СВФУ</journal-title><trans-title-group xml:lang="en"><trans-title>Mathematical notes of NEFU</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2411-9326</issn><issn pub-type="epub">2587-876X</issn><publisher><publisher-name>Северо-Восточный федеральный университет имени М.К. Аммосова</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.25587/2411-9326-2025-2-100-101</article-id><article-id custom-type="elpub" pub-id-type="custom">matmess-91</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>ТЕЗИСЫ ДОКЛАДОВ НА КОНФЕРЕНЦИИ «НЕКЛАССИЧЕСКИЕ ДИФФЕРЕНЦИАЛЬНЫЕ УРАВНЕНИЯ И МАТЕМАТИЧЕСКОЕ МОДЕЛИРОВАНИЕ» Самара, 15–17 июля 2024 г.</subject></subj-group></article-categories><title-group><article-title>Разрешимость краевых задач Жевре для дифференциальных уравнений высокого порядка</article-title><trans-title-group xml:lang="en"><trans-title>Solvability of Gevrey boundary value problems for high order differential equation</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>Попов</surname><given-names>С. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Popov</surname><given-names>S. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Попов Сергей Вячеславович</p><p>пр. Ленина, 33, Якутск 677007</p></bio><bio xml:lang="en"><p>Sergey V. Popov</p><p>33 Lenina Avenue, Yakutsk 677007</p></bio><email xlink:type="simple">guspopov@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>Попова</surname><given-names>М. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Popova</surname><given-names>M. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Попова Мичийэ Николаевна</p><p>ул. Белинского, 58, Якутск 677000</p></bio><bio xml:lang="en"><p>Michiye N. Popova</p><p>58 Belinskogo Street, Yakutsk 677000</p></bio><email xlink:type="simple">michiya9797@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Академия наук Республики Саха (Якутия)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Academy of Sciences Republic of Sakha</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Северо-Восточный федеральный университет имени М. К. Аммосова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ammosov North-Eastern Federal University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2025</year></pub-date><volume>32</volume><issue>2</issue><fpage>100</fpage><lpage>101</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Попов С.В., Попова М.Н., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Попов С.В., Попова М.Н.</copyright-holder><copyright-holder xml:lang="en">Popov S.V., Popova M.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://matmess.elpub.ru/jour/article/view/91">https://matmess.elpub.ru/jour/article/view/91</self-uri><abstract><p>Рассматриваются сингулярные интегральные операторы задач Жевре для параболических уравнений высокого порядка с весовыми условиями сопряжения (склеивания). В отличие от классического случая эти операторы помимо сингулярного оператора Коши содержат также некомпактные интегральные операторы специального вида, которые определяются ядром, приближенно однородным степени −1 относительно расстояний до концов отрезка. Получены критерии фредгольмовости этих операторов и приводятся формулы их индексов. Приведены примеры сингулярных интегральных уравнений, возникающих при исследовании краевых задач для уравнений с меняющимся направлением времени.</p></abstract><trans-abstract xml:lang="en"><p>Singular integral operators of Gevrey problems for high-order parabolic equations with weighted conjugation (gluing) conditions are considered. In contrast to the classical case, the singular Cauchy operator together with the noncompact integral operators of a special form whose kernels are approximately homogeneous of degree −1 are among these operators. The Fredholm property criterion is established for these operators as well as formulas for their indexes. Examples of singular integral equations arising in the study of boundary value problems for forward- backward equations are displayed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>сингулярные интегральные операторы</kwd><kwd>интегральный оператор с ядром</kwd><kwd>однородным степени −1</kwd><kwd>критерий фредгольмовости</kwd><kwd>формула индекса</kwd></kwd-group><kwd-group xml:lang="en"><kwd>singular integral operators</kwd><kwd>integral operator with a kernel homogeneous of degree −1</kwd><kwd>Fredholm property criterion</kwd><kwd>formula for the index</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">Popov S. V. Parabolic equations with changing time direction and a full matrix of gluing conditions // AIP Conference Proceedings. 2017. V. 1907, N 030009. P. 1–6.</mixed-citation><mixed-citation xml:lang="en">Popov S. V. Parabolic equations with changing time direction and a full matrix of gluing conditions // AIP Conference Proceedings. 2017. V. 1907, N 030009. P. 1–6.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Popov S. V., Soldatov A. P. To the theory of singular integral equations of non-classical type on a segment of a line // Lobachevskii J. Math. 2023. V. 44, N 8. P. 3522–3534.</mixed-citation><mixed-citation xml:lang="en">Popov S. V., Soldatov A. P. To the theory of singular integral equations of non-classical type on a segment of a line // Lobachevskii J. Math. 2023. V. 44, N 8. P. 3522–3534.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
