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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">izvuzmath</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Математика</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3446</issn><issn pub-type="epub">2076-4626</issn><publisher><publisher-name>Казанский (Приволжский) федеральный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26907/0021-3446-2025-10-50-63</article-id><article-id custom-type="elpub" pub-id-type="custom">izvuzmath-228</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>Статьи</subject></subj-group></article-categories><title-group><article-title>Классические неотрицательные решения одномерного уравнения Власова</article-title><trans-title-group xml:lang="en"><trans-title>Classical non-negative solutions for one-dimensional Vlasov 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>Букару</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Boukarou</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Ансса Букару</p><p>г. Баб-Эззуар, 16000</p></bio><bio xml:lang="en"><p>Aissa Boukarou</p><p>Bab Ezzouar, 16000 </p></bio><email xlink:type="simple">boukarouaissa@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Георгиев</surname><given-names>С. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Georgiev</surname><given-names>S. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Светлин Г. Георгиев</p><p>г. Париж, 75005</p></bio><bio xml:lang="en"><p>Svetlin G. Georgiev</p><p>Paris, 75005 </p></bio><email xlink:type="simple">svetlingeorgievl@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бухали</surname><given-names>К.</given-names></name><name name-style="western" xml:lang="en"><surname>Bouhali</surname><given-names>K.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Келтум Бухали</p><p>г. Бурайда, 51452</p></bio><bio xml:lang="en"><p>Keltoum Bouhali</p><p>Buraydah, 51452 </p></bio><email xlink:type="simple">k.bouhali@qu.edu.sa</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Зеннир</surname><given-names>Х.</given-names></name><name name-style="western" xml:lang="en"><surname>Zennir</surname><given-names>Kh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Халед Зеннир</p><p>г. Бурайда, 51452</p></bio><bio xml:lang="en"><p>Khaled Zennir</p><p>Buraydah, 51452 </p></bio><email xlink:type="simple">k.zennir@qu.edu.sa</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет науки и технологий имени Хуари Бумедьена</institution><country>Алжир</country></aff><aff xml:lang="en"><institution>University of Science and Technology Houari Boumediene</institution><country>Algeria</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Университет Сорбонна</institution><country>Франция</country></aff><aff xml:lang="en"><institution>Sorbonne University</institution><country>France</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru"><institution>Университет Касима</institution><country>Саудовская Аравия</country></aff><aff xml:lang="en"><institution>Qassim University</institution><country>Saudi Arabia</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>25</day><month>10</month><year>2025</year></pub-date><volume>0</volume><issue>10</issue><fpage>50</fpage><lpage>63</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Букару А., Георгиев С.Г., Бухали К., Зеннир Х., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Букару А., Георгиев С.Г., Бухали К., Зеннир Х.</copyright-holder><copyright-holder xml:lang="en">Boukarou A., Georgiev S.G., Bouhali K., Zennir K.</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://izvuzmath.elpub.ru/jour/article/view/228">https://izvuzmath.elpub.ru/jour/article/view/228</self-uri><abstract><p>Для получения классических неотрицательных решений уравнения Власова пред­лагается новый подход, основанный на использовании неподвижной точки и определенных топологических свойств. Данный подход позволяет найти как минимум одно решение, а так­же как минимум два различных решения. Показано, как данный метод применяется к задаче нахождения классических неотрицательных решений уравнения Власова.</p></abstract><trans-abstract xml:lang="en"><p>New fixed point approach based on certain topological properties is applied on the Vlasov equation to find classical non-negative solutions. This approach allows finding at least one solution and at least two solutions. It is shown how to apply this approach to the problem of finding classical non-negative solutions of the Vlasov equation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>уравнение Власова</kwd><kwd>существование решений</kwd><kwd>итерационный метод</kwd><kwd>классическое решение</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Vlasov equation</kwd><kwd>existence of solutions</kwd><kwd>iterative method</kwd><kwd>classical solution</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">Власов А.В. О вибрационных свойствах электронного газа, ЖЭТФ 8 (3), 291–318 (1968).</mixed-citation><mixed-citation xml:lang="en">Власов А.В. О вибрационных свойствах электронного газа, ЖЭТФ 8 (3), 291–318 (1968).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Bogolyubov N.N. 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