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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">mathnas</journal-id><journal-title-group><journal-title xml:lang="ru">Труды Института математики НАН Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Institute of Mathematics of the NAS of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1812-5093</issn><publisher><publisher-name>Институт математики НАН Беларуси</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.67268/1812-5093-2026-34-1s-128-142</article-id><article-id custom-type="edn" pub-id-type="custom">EPOORT</article-id><article-id custom-type="elpub" pub-id-type="custom">mathnas-190</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>ДИФФЕРЕНЦИАЛЬНЫЕ УРАВНЕНИЯ, ДИНАМИЧЕСКИЕ СИСТЕМЫ И ОПТИМАЛЬНОЕ УПРАВЛЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>DIFFERENTIAL EQUATIONS, DYNAMIC SYSTEMS AND OPTIMAL CONTROL</subject></subj-group></article-categories><title-group><article-title>Асимптотика решения задачи об управлении с минимальной интенсивностью линейной трехтемповой сингулярно возмущенной системой</article-title><trans-title-group xml:lang="en"><trans-title>Asymptotics of solving control problem with minimum intensity of  linear three-tempo singularly perturbed system</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>Калинин</surname><given-names>А. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Kalinin</surname><given-names>A. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><email xlink:type="simple">kalininai@bsu.by</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>Лавринович</surname><given-names>Л И.</given-names></name><name name-style="western" xml:lang="en"><surname>Lavrinovich</surname><given-names>L. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Minsk</p></bio><email xlink:type="simple">lavrinovich@bsu.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет</institution><country>Беларусь</country></aff><aff xml:lang="en"><institution>Belarusian State University</institution><country>Belarus</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>07</day><month>11</month><year>2026</year></pub-date><volume>34</volume><issue>1s</issue><fpage>128</fpage><lpage>142</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Калинин А.И., Лавринович Л.И., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Калинин А.И., Лавринович Л.И.</copyright-holder><copyright-holder xml:lang="en">Kalinin A.I., Lavrinovich L.I.</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://mathnas.ejournal.by/jour/article/view/190">https://mathnas.ejournal.by/jour/article/view/190</self-uri><abstract><p>Рассматривается задача оптимизации переходного процесса в линейной сингулярно возмущенной системе с двумя группами быстрых переменных, которая состоит в нахождении многомерного управления с минимальной интенсивностью. Показано, что для построения приближенного (в асимптотическом смысле) решения этой задачи достаточно решить три невозмущенные задачи оптимального управления меньшей размерности.</p></abstract><trans-abstract xml:lang="en"><p>The problem of optimizing the transient process in a linear singularly perturbed system with two groups of fast variables is considered, which consists in finding multidimensional control with minimal intensity. It is shown that to construct an approximate (in the asymptotic sense) solution to this problem, it is sufficient to solve three unperturbed optimal control problems of a smaller dimension.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>малый параметр</kwd><kwd>сингулярно возмущенная система</kwd><kwd>оптимальное управление</kwd><kwd>асимптотические приближения</kwd><kwd>минимальная интенсивность управления</kwd></kwd-group><kwd-group xml:lang="en"><kwd>small parameter</kwd><kwd>singularly perturbed system</kwd><kwd>optimal control</kwd><kwd>asymptotic approximations</kwd><kwd>minimum control intensity</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">Дмитриев М. Г., Курина Г. А. Сингулярные возмущения в задачах управления // Автомат. и телемех. 2006. № 1. С. 3–51.</mixed-citation><mixed-citation xml:lang="en">Dmitriev M. G., Kurina G. A. 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