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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">phmath</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Государственного университета просвещения. Серия: Физика-Математика</journal-title><trans-title-group xml:lang="en"><trans-title>Bulletin of Federal State University of Education. Series: Physics and Mathematics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2949-5083</issn><issn pub-type="epub">2949-5067</issn><publisher><publisher-name>Federal State University of Education</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18384/2949-5067-2026-2-103-112</article-id><article-id custom-type="elpub" pub-id-type="custom">phmath-774</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>МАТЕМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICS</subject></subj-group></article-categories><title-group><article-title>Точные решения задачи Дирихле – Неймана для обобщённого уравнения Трикоми</article-title><trans-title-group xml:lang="en"><trans-title>Exact solutions of the Dirichlet – Neumann problem for the generalized Tricomi 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>Алгазин</surname><given-names>О. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Algazin</surname><given-names>O. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алгазин Олег Дмитриевич – кандидат физико-математических наук, доцент кафедры вычислительной математики и математической физики</p><p>г. Москва</p></bio><bio xml:lang="en"><p>Oleg D. Algazin – PhD (Phys.-Math.), Assoc. Prof., Department of Computational Mathematics and Mathematical Physics</p><p>Moscow</p></bio><email xlink:type="simple">mopi66@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный технический университет им. Н. Э. Баумана (национальный исследовательский университет)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bauman Moscow State Technical 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>14</day><month>10</month><year>2026</year></pub-date><volume>0</volume><issue>2</issue><fpage>103</fpage><lpage>112</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Алгазин О.Д., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Алгазин О.Д.</copyright-holder><copyright-holder xml:lang="en">Algazin O.D.</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.physmathmgou.ru/jour/article/view/774">https://www.physmathmgou.ru/jour/article/view/774</self-uri><abstract><p>Целью работы является поиск условий, при выполнении которых уравнение Трикоми имеет точные решения и нахождение этих решений.</p><sec><title>Процедура и методы</title><p>Процедура и методы. Рассматривается задача Дирихле – Неймана для многомерного обобщения уравнения Трикоми в бесконечной области, ограниченной двумя гиперплоскостями. С помощью преобразования Фурье показано, что эта задача в области эллиптичности уравнения имеет единственное решение в классе функций медленного роста.</p></sec><sec><title>Результаты</title><p>Результаты. Показано, что в случае, когда правые части уравнения и граничных условий являются полигармоническими функциями (в частности полиномами), существуют точные решения задачи. Приведён алгоритм получения решения.</p><p>Теоретическая и практическая значимость заключается в нахождении условий существования точных решений задачи и нахождении самих точных решений, которые могут использоваться для проверки точности приближенных методов.</p></sec></abstract><trans-abstract xml:lang="en"><sec><title>Aim</title><p>Aim. The aim of the work is to find conditions under which the Tricomi equation has exact solutions and to find these solutions.</p></sec><sec><title>Methodology</title><p>Methodology. We consider the Dirichlet – Neumann problem for a multidimensional generalization of the Tricomi equation in an infinite domain bounded by two hyperplanes. Using the Fourier transform, it is shown that this problem in the domain of ellipticity of the equation has a unique solution in the class of functions of slow growth.</p></sec><sec><title>Results</title><p>Results. It is shown that when the right-hand sides of the equation and boundary conditions are polyharmonic functions (specifically, polynomials), exact solutions to the problem exist. An algorithm for obtaining the solution is presented.</p><p>Research implications consist of finding the conditions for the existence of exact solutions to the problem and finding the exact solutions themselves, which can be used to test the accuracy of approximate methods.</p></sec></trans-abstract><kwd-group xml:lang="ru"><kwd>функции медленного роста</kwd><kwd>полигармонические функции</kwd><kwd>преобразование  Фурье</kwd><kwd>задача Дирихле – Неймана</kwd><kwd>уравнение Трикоми</kwd></kwd-group><kwd-group xml:lang="en"><kwd>functions of slow growth</kwd><kwd>polyharmonic functions</kwd><kwd>Fourier transform</kwd><kwd>Dirichlet-Neumann  problem</kwd><kwd>Tricomi equation</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">Tricomi F. Sulle equazioni lineari alle derivate parziali di secondo ordine, di tipo misto // Atti Della Reale Accademia Dei Lincei. Serie Quinta. 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