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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">najo</journal-id><journal-title-group><journal-title xml:lang="en">Nanosystems: Physics, Chemistry, Mathematics</journal-title><trans-title-group xml:lang="ru"><trans-title>Наносистемы: физика, химия, математика</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2220-8054</issn><issn pub-type="epub">2305-7971</issn><publisher><publisher-name>Университет ИТМО</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17586/2220-8054-2015-6-6-757-761</article-id><article-id custom-type="elpub" pub-id-type="custom">najo-885</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="en"><subject>PAPERS, PRESENTED AT THE CONFERENCE</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>PAPERS, PRESENTED AT THE CONFERENCE</subject></subj-group></article-categories><title-group><article-title>Linearized KdV equation on a metric graph</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Sobirov</surname><given-names>Z. A.</given-names></name></name-alternatives><bio xml:lang="en"><p>Vuzgorodok, 100047 Tashkent </p><p>100000 Tashkent </p></bio><email xlink:type="simple">sobirovzar@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Akhmedov</surname><given-names>M. I.</given-names></name></name-alternatives><bio xml:lang="en"><p>100000 Tashkent </p></bio><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Karpova</surname><given-names>O. V.</given-names></name></name-alternatives><bio xml:lang="en"><p> Vuzgorodok, 100047 Tashkent </p></bio><email xlink:type="simple">ola_july@mail.ru</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Jabbarova</surname><given-names>B.</given-names></name></name-alternatives><bio xml:lang="en"><p>Urganch</p></bio><xref ref-type="aff" rid="aff-4"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Faculty of Mechanics and Mathematics, National University of Uzbekistan ; Applied Mathematics Department of Tashkent Financial Institute</institution><country>Uzbekistan</country></aff><aff xml:lang="en" id="aff-2"><institution>Applied Mathematics Department of Tashkent Financial Institute</institution><country>Uzbekistan</country></aff><aff xml:lang="en" id="aff-3"><institution>Faculty of Physics, National University of Uzbekistan ; Turin Polytechnic University in Tashkent</institution><country>Uzbekistan</country></aff><aff xml:lang="en" id="aff-4"><institution>Urganch State University</institution><country>Uzbekistan</country></aff><pub-date pub-type="collection"><year>2015</year></pub-date><pub-date pub-type="epub"><day>15</day><month>08</month><year>2025</year></pub-date><volume>6</volume><issue>6</issue><fpage>757</fpage><lpage>761</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Sobirov Z.A., Akhmedov M.I., Karpova O.V., Jabbarova B., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Sobirov Z.A., Akhmedov M.I., Karpova O.V., Jabbarova B.</copyright-holder><copyright-holder xml:lang="en">Sobirov Z.A., Akhmedov M.I., Karpova O.V., Jabbarova B.</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://nanojournal.ifmo.ru/jour/article/view/885">https://nanojournal.ifmo.ru/jour/article/view/885</self-uri><abstract><p>We address a linearized KdV equation on metric star graphs with one incoming finite bond and two outgoing semi-infinite bonds. Using the theory of potentials, we reduce the problem to systems of linear integral equations and show that they are uniquely solvable under conditions of the uniqueness theorem.</p></abstract><kwd-group xml:lang="en"><kwd>KdV</kwd><kwd>IBVP</kwd><kwd>PDE on metric graphs</kwd><kwd>exact solution</kwd><kwd>third order differential equations</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">S. Abdinazarov. The general boundary value problem for the third order equation with multiple characteristics (in Russian). Differential Equations, 1881, 3(1), P. 3{12.</mixed-citation><mixed-citation xml:lang="en">S. Abdinazarov. The general boundary value problem for the third order equation with multiple characteristics (in Russian). 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