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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">vestnikmephi</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник НИЯУ МИФИ</journal-title><trans-title-group xml:lang="en"><trans-title>Vestnik natsional'nogo issledovatel'skogo yadernogo universiteta "MIFI"</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2304-487X</issn><publisher><publisher-name>National Research Nuclear University "MEPhI"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26583/vestnik.2025.1.3</article-id><article-id custom-type="edn" pub-id-type="custom">DXKPEC</article-id><article-id custom-type="elpub" pub-id-type="custom">vestnikmephi-389</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>МАТЕМАТИЧЕСКИЕ МОДЕЛИ И ЧИСЛЕННЫЕ МЕТОДЫ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICAL MODELS AND NUMERICAL METHODS</subject></subj-group></article-categories><title-group><article-title>НЕЛИНЕЙНОЕ УРАВНЕНИЕ ШРЕДИНГЕРА ОБЩЕГО ВИДА: МНОГОФУНКЦИОНАЛЬНАЯ МОДЕЛЬ, РЕДУКЦИИ И ТОЧНЫЕ РЕШЕНИЯ</article-title><trans-title-group xml:lang="en"><trans-title>NONLINEAR SCHRÖDINGER EQUATION OF GENERAL FORM: MULTIFUNCTIONAL MODEL, REDUCTIONS AND EXACT SOLUTIONS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-2610-0590</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Полянин</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Polyanin</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор</p><p>AuthorID: 4251</p></bio><email xlink:type="simple">polyanin@ipmnet.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5926-9715</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Кудряшов</surname><given-names>Н. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Kudryashov</surname><given-names>N. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор</p></bio><email xlink:type="simple">nakudryashov@mephi.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт проблем механики им. А.Ю. Ишлинского РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Ishlinsky Institute for Problems in Mechanics, Russian Academy of Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Национальный исследовательский ядерный университет «МИФИ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>National Research Nuclear University MEPhI (Moscow Engineering Physics Institute)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>25</day><month>02</month><year>2025</year></pub-date><volume>14</volume><issue>1</issue><fpage>24</fpage><lpage>36</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Полянин А.Д., Кудряшов Н.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Полянин А.Д., Кудряшов Н.А.</copyright-holder><copyright-holder xml:lang="en">Polyanin A.D., Kudryashov N.A.</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://vestnikmephi.elpub.ru/jour/article/view/389">https://vestnikmephi.elpub.ru/jour/article/view/389</self-uri><abstract><p>Представлена новая математическая модель, основанная на нелинейном уравнении Шредингера с шестью произвольными функциями и позволяющая учитывать различные факторы. Эта многофункциональная модель является обобщением более простых родственных нелинейных моделей, которые часто встречаются в различных разделах теоретической физики, включая нелинейную оптику, сверхпроводимость и физику плазмы. Для анализа рассматриваемого нелинейного уравнения используется комбинация метода функциональных связей и методов обобщенного разделения переменных. Описаны одномерные несимметрийные редукции, приводящие исследуемое сложное уравнение в частных производных к более простым обыкновенным дифференциальным уравнениям или системам таких уравнений. Найден ряд точных решений нелинейного уравнения Шредингера общего вида, которые выражаются в квадратурах или элементарных функциях. Получены как периодические решения по времени, так и по пространственной переменной. Специальное внимание уделено некоторым более узким классам уравнений с меньшим числом произвольных функций. Описанная общая многофункциональная модель путем конкретизации вида произвольных функций позволяет эффективно анализировать многочисленные более простые модели и находить их точные решения. Полученные в данной работе точные решения могут использоваться в качестве тестовых задач, предназначенных для проверки адекватности и оценки точности численных и приближенных аналитических методов интегрирования нелинейных уравнений математической физики.</p></abstract><trans-abstract xml:lang="en"><p>A new mathematical model based on the nonlinear Schrödinger equation with six arbitrary functions and allowing for various factors is presented. This multifunctional model is a broad generalization of numerous simpler related nonlinear models that are commonly encountered in various areas of theoretical physics, including nonlinear optics, superconductivity, and plasma physics. To analyze the nonlinear equation under consideration, a combination of the method of functional constraints and methods of generalized separation of variables is used. One-dimensional non-symmetry reductions are described, which lead the studied complex partial differential equation to simpler ordinary differential equations or systems of such equations. A number of exact solutions of the nonlinear Schrödinger equation of general form have been found, which are expressed in quadratures or elementary functions. Both periodic solutions in time and in spatial variable are obtained. Special attention is paid to some narrower classes of nonlinear PDEs with a smaller number of arbitrary functions. The described general multifunctional model allows one to effectively analyze numerous simpler models by specifying a specific particular forms of arbitrary functions. The exact solutions obtained in this work can be used as test problems intended to check the adequacy and assess the accuracy of numerical and approximate analytical methods for integrating nonlinear equations of mathematical physics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нелинейное уравнение Шредингера</kwd><kwd>нелинейные УЧП общего вида</kwd><kwd>нелинейная оптика</kwd><kwd>точные решения</kwd><kwd>решения в квадратурах</kwd><kwd>решения с обобщенным разделением переменных</kwd><kwd>несимметрийные редукции</kwd></kwd-group><kwd-group xml:lang="en"><kwd>nonlinear Schrödinger equation</kwd><kwd>general nonlinear PDEs</kwd><kwd>nonlinear optics</kwd><kwd>exact solutions</kwd><kwd>solutions in quadratures</kwd><kwd>generalized separable solutions</kwd><kwd>non-symmetry reductions</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена по темам государственного задания (№№ госрегистрации 124012500440-9 и FSWU-2023-0031).</funding-statement><funding-statement xml:lang="en">The work was carried out on the topics of the state assignment (state registration no. 124012500440-9 and FSWU-2023-0031).</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">Агравал Г. 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