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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">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2021-22-3-448-452</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1103</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>Краткие сообщения</subject></subj-group></article-categories><title-group><article-title>Замечание к одной лемме из статьи Филиппова о дифференциальных включениях</article-title><trans-title-group xml:lang="en"><trans-title>A remark on a lemma from Filippov’s article on differential inclusions</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>Борисенко</surname><given-names>Евгений Егорович</given-names></name><name name-style="western" xml:lang="en"><surname>Borisenko</surname><given-names>Evgeny Egorovich</given-names></name></name-alternatives><email xlink:type="simple">yevhenii16@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 университет им. М. В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>12</day><month>11</month><year>2021</year></pub-date><volume>22</volume><issue>3</issue><fpage>448</fpage><lpage>452</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Борисенко Е.Е., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Борисенко Е.Е.</copyright-holder><copyright-holder xml:lang="en">Borisenko E.E.</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.chebsbornik.ru/jour/article/view/1103">https://www.chebsbornik.ru/jour/article/view/1103</self-uri><abstract><p>В статье А.Ф. Филиппова рассматривается возможное определение решения дифференциального уравнения с разрывной правой частью. Из приведенной Филипповым леммы об устройстве множества, определяющего дифференциальное включение, можно вывестиэквивалентное определение решения, которое позволяет расширить набор возможных множеств определения и значений функции, стоящей в правой части уравнения.В этой заметке получено обобщение этой леммы на случай общих топологических пространств и пространств с мерой. Даны полные доказательства соответствующих теорем.</p></abstract><trans-abstract xml:lang="en"><p>The Filippov’s article discusses a possible definition of the solution of differential equation with discontinuous right-hand side. The lemma on the structure of the set defining differentialinclusion given by Filippov implies an equivalent solution definition, which allows us to expand possible domains and codomains of the function, that is in the right-hand side of the equation. In this paper we find a generalization of this lemma to the case of general topologic and measure spaces. Proofs of corresponding theorems are given here.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>дифференциальные включения</kwd><kwd>регуляризация по Филиппову</kwd></kwd-group><kwd-group xml:lang="en"><kwd>differential inclusions</kwd><kwd>Filippov’s regularization</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">А. Ф. Филиппов, Дифференциальные уравнения с разрывной правой частью, Матем. сб.,</mixed-citation><mixed-citation xml:lang="en">A. F. 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