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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">10.22405/2226-8383-2026-27-1-111-133</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-2187</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>Интегрирование модифицированного уравнения Кортевега – де Фриза с интегральным источником</article-title><trans-title-group xml:lang="en"><trans-title>Integration of the modified Korteweg-de Vries equation with an integral source</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>Яхшимуратов</surname><given-names>Алишер Бекчанович</given-names></name><name name-style="western" xml:lang="en"><surname>Yaxshimuratov</surname><given-names>Alisher Bekchanovich</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">alisher.yakhshi@gmail.com</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>Хасанов</surname><given-names>Музаффар Машарипович</given-names></name><name name-style="western" xml:lang="en"><surname>Khasanov</surname><given-names>Muzaffar Masharipovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор философии (PhD) по физико-математическим наукам</p></bio><bio xml:lang="en"><p>doctor of philosophy (PhD) in physical and mathematical sciences</p></bio><email xlink:type="simple">hmuzaffar@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет Мамуна</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Mamun University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Ургенчский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Urgench 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>111</fpage><lpage>133</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Яхшимуратов А.Б., Хасанов М.М., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Яхшимуратов А.Б., Хасанов М.М.</copyright-holder><copyright-holder xml:lang="en">Yaxshimuratov A.B., Khasanov M.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/2187">https://www.chebsbornik.ru/jour/article/view/2187</self-uri><abstract><p>В данной работе рассматривается модифицированное уравнение Кортевега – де Фриза с интегральным источником. Показано, что метод обратной спектральной задачи может быть применен для интегрирования модифицированного равнения Кортевега – де Фриза с интегральным источником. Определена эволюция спектральных данных оператора Дирака с периодическим потенциалом, связанным с решением модифицированного уравнения Кортевега – де Фриза с интегральным источником. Доказана разрешимость задачи Коши для бесконечной системы дифференциальных уравнений Дубровина — Трубовица в классе шесть раз непрерывно дифференцируемых периодических функций. Показано, что построенное решение действительно удовлетворяет рассматриваемому уравнению.</p></abstract><trans-abstract xml:lang="en"><p>In this paper, we consider the modified Korteweg–de Vries equation with an integral source.It is shown that the inverse spectral problem method can be applied to integrate the modified Korteweg–de Vries equation with an integral source. The evolution of the spectral data of the Dirac operator with a periodic potential associated with the solution of the modifiedKorteweg–de Vries equation with an integral source is determined. The solvability of the Cauchy problem for the infinite system of Dubrovin–Trubowitz differential equations in the class of six times continuously differentiable periodic functions is proved. It is shown that the  constructed solution, indeed, satisfies the equation under consideration.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>модифицированное уравнение Кортевега – де Фриза</kwd><kwd>самосогласованный источник</kwd><kwd>оператор Дирака</kwd><kwd>обратная спектральная задача</kwd><kwd>система уравнений Дубровина – Трубовица</kwd><kwd>формулы следов.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Modified Korteweg-de Vries equation</kwd><kwd>self-consistent source</kwd><kwd>Dirac operator</kwd><kwd>inverse spectral problem</kwd><kwd>Dubrovin-Trubowitz system of equations</kwd><kwd>trace formulas.</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">Wadati M. The exact solution of the modified Korteweg-de Vries equation // J. Phys. Soc. Japan. 1972. 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