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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences</journal-id><journal-title-group><journal-title xml:lang="en">Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Самарского государственного технического университета. Серия «Физико-математические науки»</trans-title></trans-title-group></journal-title-group><issn publication-format="print">1991-8615</issn><issn publication-format="electronic">2310-7081</issn><publisher><publisher-name xml:lang="en">Samara State Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">632189</article-id><article-id pub-id-type="doi">10.14498/vsgtu2095</article-id><article-id pub-id-type="edn">WGZAMY</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Differential Equations and Mathematical Physics</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Дифференциальные уравнения и математическая физика</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Inverse kernel determination problem for a class of pseudo-parabolic integro-differential equations</article-title><trans-title-group xml:lang="ru"><trans-title>Обратная задача определения ядра для класса псевдопараболических интегро-дифференциальных уравнений</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6054-2827</contrib-id><name-alternatives><name xml:lang="en"><surname>Durdiev</surname><given-names>Durdimurod K.</given-names></name><name xml:lang="ru"><surname>Дурдиев</surname><given-names>Дурдимурод Каландарович</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>Dr. Phys. &amp; Math. Sci., Professor; Head of Branch; Professor, Dept. of Differential Equations</p></bio><bio xml:lang="ru"><p>доктор физико-математических наук, профессор; заведующий отделением; профессор, каф. дифференциальных уравнений</p></bio><email>d.durdiev@mathinst.uz</email><uri>http://www.mathnet.ru/person29112</uri><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4306-2589</contrib-id><name-alternatives><name xml:lang="en"><surname>Elmuradova</surname><given-names>Hilola B.</given-names></name><name xml:lang="ru"><surname>Элмурадова</surname><given-names>Хилола Ботировна</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>Teacher; PhD Student; Dept. of Differential Equations</p></bio><bio xml:lang="ru"><p>преподаватель; базовый докторант; каф. дифференциальных уравнений</p></bio><email>helmuradova@mail.ru</email><uri>https://www.mathnet.ru/person228134</uri><xref ref-type="aff" rid="aff2"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7641-9698</contrib-id><name-alternatives><name xml:lang="en"><surname>Rahmonov</surname><given-names>Askar A.</given-names></name><name xml:lang="ru"><surname>Рахмонов</surname><given-names>Аскар Ахмадович</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>Cand. Phys. &amp; Math. Sci., Associate Professor; Senior Researcher; Associate Professor, Dept. of Differential Equations</p></bio><email>araxmonov@mail.ru</email><uri>https://www.mathnet.ru/person67047</uri><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Bukhara Branch of the Institute of Mathematics named after V. I. Romanovskiy at the Academy of Sciences of the Republic of Uzbekistan</institution></aff><aff><institution xml:lang="ru">Бухарское отделение Института математики Академии наук Республики Узбекистан</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Bukhara State University</institution></aff><aff><institution xml:lang="ru">Бухарский государственный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2025-05-20" publication-format="electronic"><day>20</day><month>05</month><year>2025</year></pub-date><volume>29</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>7</fpage><lpage>20</lpage><history><date date-type="received" iso-8601-date="2024-05-18"><day>18</day><month>05</month><year>2024</year></date><date date-type="accepted" iso-8601-date="2024-10-23"><day>23</day><month>10</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2025, Authors; Samara State Technical University (Compilation, Design, and Layout)</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2025, Авторский коллектив; Самарский государственный технический университет (составление, дизайн, макет)</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="en">Authors; Samara State Technical University (Compilation, Design, and Layout)</copyright-holder><copyright-holder xml:lang="ru">Авторский коллектив; Самарский государственный технический университет (составление, дизайн, макет)</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.eco-vector.com/1991-8615/article/view/632189">https://journals.eco-vector.com/1991-8615/article/view/632189</self-uri><abstract xml:lang="en"><p>This study investigates an inverse problem involving the determination of the kernel function in a multidimensional integrodifferential pseudo-parabolic equation of the third order. The study begins with an analysis of the direct problem, where we examine an initial-boundary value problem with homogeneous boundary conditions for a known kernel. Employing the Fourier method, we construct the solution as a series expansion in terms of eigenfunctions of the Laplace operator with Dirichlet boundary conditions. A crucial component of our analysis involves deriving a priori estimates for the series coefficients in terms of the kernel function norm, which play a fundamental role in our subsequent treatment of the inverse problem.For the inverse problem, we introduce an overdetermination condition specifying the solution value at a fixed spatial point (pointwise measurement). This formulation leads to a Volterra-type integral equation of the second kind. By applying the Banach fixed-point principle within the framework of continuous functions equipped with an exponentially weighted norm, we establish the global existence and uniqueness of solutions to the inverse problem. Our results demonstrate the well-posedness of the problem underconsideration.</p></abstract><trans-abstract xml:lang="ru"><p>Данная работа посвящена исследованию обратной задачи определения ядра в многомерном интегро-дифференциальном псевдопараболическом уравнении третьего порядка. Исследование начинается с анализа прямой задачи с известной функцией ядра при рассмотрении начально-краевой задачи с однородными граничными условиями. Методом Фурье строится решение в виде ряда по собственным функциям задачи Дирихле для оператора Лапласа. Важной частью анализа является получение априорных оценок коэффициентов ряда через норму функции ядра, которые играют ключевую роль при изучении обратной задачи.Для обратной задачи вводится условие переопределения, задающее значение решения в фиксированной точке пространственной области (точечное измерение). Эта формулировка сводится к интегральному уравнению Вольтерра второго рода. Путем применения принципа сжимающих отображений Банаха в классе непрерывных функций с экспоненциально взвешенной нормой устанавливаются глобальная существование и единственность решения обратной задачи. Полученные результаты демонстрируют корректную разрешимость рассматриваемой проблемы.</p></trans-abstract><kwd-group xml:lang="en"><kwd>pseudo-parabolic equation</kwd><kwd>integro-differential equation</kwd><kwd>inverse problem</kwd><kwd>kernel determination</kwd><kwd>Fourier method</kwd><kwd>Banach fixed-point principle</kwd><kwd>a priori estimates</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>псевдопараболическое уравнение</kwd><kwd>интегро-дифференциальное уравнение</kwd><kwd>обратная задача</kwd><kwd>определение ядра</kwd><kwd>метод Фурье</kwd><kwd>принцип сжимающих отображений</kwd><kwd>априорные оценки</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Romanov V. G. Investigation Methods for Inverse Problems, Inverse and Ill-Posed Problems Series. Utrecht, VSP, 2002, xii+280 pp.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Denisov A. M. 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