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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">141094</article-id><article-id pub-id-type="doi">10.14498/vsgtu1997</article-id><article-id pub-id-type="edn">WSCTDR</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 problem for an integro-differential equation of hyperbolic type with additional information of a special form in a bounded domain</article-title><trans-title-group xml:lang="ru"><trans-title>Обратная задача для интегро-дифференциального уравнения гиперболического типа с дополнительной информацией специального вида в ограниченной области</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-9249-835X</contrib-id><name-alternatives><name xml:lang="en"><surname>Safarov</surname><given-names>Jurabek Sh.</given-names></name><name xml:lang="ru"><surname>Сафаров</surname><given-names>Журабек Шакарович</given-names></name></name-alternatives><address><country country="UZ">Uzbekistan</country></address><bio xml:lang="en"><p>Dr. Phys. &amp; Math. Sci.; Senior Researcher; Lab. of Differential Equations and their Applications; Professor; Dept. of Higher Mathematics</p></bio><bio xml:lang="ru"><p>доктор физико-математических наук, профессор; старший научный сотрудник; лаб. дифференциальных уравнений и их приложений; профессор; каф. высшей математики</p></bio><email>j.safarov65@mail.ru</email><uri>https://www.mathnet.ru/person73792</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">V. I. Romanovsky Institute of Mathematics of the Academy of Sciences of the Republic of Uzbekistan</institution></aff><aff><institution xml:lang="ru">Институт математики имени В. И. Романовского Академии наук Республики Узбекистан</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Tashkent University of Information Technologies</institution></aff><aff><institution xml:lang="ru">Ташкентский университет информационных технологий</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2024-09-02" publication-format="electronic"><day>02</day><month>09</month><year>2024</year></pub-date><volume>28</volume><issue>1</issue><issue-title xml:lang="en"/><issue-title xml:lang="ru"/><fpage>29</fpage><lpage>44</lpage><history><date date-type="received" iso-8601-date="2023-01-27"><day>27</day><month>01</month><year>2023</year></date><date date-type="accepted" iso-8601-date="2024-03-22"><day>22</day><month>03</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2024, Authors; Samara State Technical University (Compilation, Design, and Layout)</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2024, Авторский коллектив; Самарский государственный технический университет (составление, дизайн, макет)</copyright-statement><copyright-year>2024</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/141094">https://journals.eco-vector.com/1991-8615/article/view/141094</self-uri><abstract xml:lang="en"><p>A one-dimensional inverse problem of determining the kernel of the integralterm of an integro-differential equation of hyperbolic type in a variableboundeddomain $x$ is considered. Firstly, the direct problem is investigated, for the regular part of which the Cauchy problem on the axis $x=0$ is obtained using the method of singularity extraction. Subsequently, an integral equation for the unknown function is derived by the d’Alembert formula.For the direct problem, the inverse problem of determining the kernel entering the integral term of the equation is studied. To find it, an additional condition is specified in a special form. As a result, the inverse problem is reduced to an equivalent system of integral equations for unknown functions. The principle of contraction mappings in the space of continuous functions with weighted norms is applied to the obtained system.For the given problem, a theorem of global unique solvability has beenproven, which is the main result of the study.</p></abstract><trans-abstract xml:lang="ru"><p>Рассматривается одномерная обратная задача определения ядра интегрального члена интегро-дифференциального уравнения гиперболического типа в ограниченной по переменной $x$ области. Сначала исследуется прямая задача, для регулярной части которой методом выделения особенностей получена задача Коши на оси $x=0$. Далее с помощью формулы Даламбера получено интегральное уравнение относительно искомой функции.Для прямой задачи изучается обратная задача определения ядра, входящего в интегральный член уравнения. Для его отыскания задается дополнительное условие в специальном виде. В итоге обратная задача сводится к эквивалентной системе интегральных уравнений относительно неизвестных функций. К полученной системе применяется принцип сжимающих отображений в пространстве непрерывных функций с весовыми нормами.Для поставленной задачи доказана теорема глобальной однозначной разрешимости, которая является основным результатом статьи.</p></trans-abstract><kwd-group xml:lang="en"><kwd>integro-differential equation</kwd><kwd>inverse problem</kwd><kwd>integral kernel</kwd><kwd>contraction mapping principle</kwd><kwd>Banach theorem</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>интегро-дифференциальное уравнение</kwd><kwd>обратная задача</kwd><kwd>ядро интеграла</kwd><kwd>принцип сжимающих отображений</kwd><kwd>теорема Банаха</kwd></kwd-group><funding-group/></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><citation-alternatives><mixed-citation xml:lang="en">Lorenzi A., Sinestrari E. Stability results for a partial integrodifferential inverse problem, In: Volterra integrodifferential equations in Banach spaces and applications, Proc. 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