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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 custom-type="elpub" pub-id-type="custom">mathnas-65</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>АЛГЕБРА И ТЕОРИЯ ЧИСЕЛ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ALGEBRA AND NUMBER THEORY</subject></subj-group></article-categories><title-group><article-title>Неразветвленные расширения Галуа и подгруппы GLn</article-title><trans-title-group xml:lang="en"><trans-title>Unramified Galois extensions and subgroups of GLn</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>Малинин</surname><given-names>Д. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Malinin</surname><given-names>D. A.</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">dmalinin@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики НАН Беларуси</institution></aff><aff xml:lang="en"><institution>Institute of Mathematics of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2025</year></pub-date><volume>33</volume><issue>1</issue><fpage>20</fpage><lpage>27</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Малинин Д.А., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Малинин Д.А.</copyright-holder><copyright-holder xml:lang="en">Malinin D.A.</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/65">https://mathnas.ejournal.by/jour/article/view/65</self-uri><abstract><p>Мы рассматриваем естественное действие групп Галуа неразветвленных расширений Галуа числовых полей на конечных устойчивых при действии группы  Галуа подгруппах $GL_n$.</p></abstract><trans-abstract xml:lang="en"><p>We consider the natural action of Galois groups of unramified Galois extensions of number fields on finite Galois stable subgroups of $GL_n$.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>неразветвленные расширения Галуа</kwd><kwd>действие Галуа</kwd><kwd>конечные устойчивые подгруппы $GL_n$</kwd></kwd-group><kwd-group xml:lang="en"><kwd>unramified Galois extensions</kwd><kwd>Galois action</kwd><kwd>Galois stable finite subgroups of $GL_n$</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа поддержана Институтом математики НАН Беларуси в рамках задания 1.1.01 государственной программы научных исследований «Конвергенция–2025».</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Harbater D. 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