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<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">10.22405/2226-8383-2020-21-3-84-88</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-853</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><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Представление матриц над полями в виде матриц с нулевым квадратом и диагональных матриц</article-title><trans-title-group xml:lang="en"><trans-title>Representing Matrices over Fields as Square-Zero Matrices and Diagonal Matrices</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>Данчев</surname><given-names>Пётр</given-names></name><name name-style="western" xml:lang="en"><surname>Danchev</surname><given-names>Peter</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор математики</p></bio><bio xml:lang="en"><p>Doctor of Mathematicks</p></bio><email xlink:type="simple">danchev@math.bas.bg</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики и информатики Болгарской ака-&#13;
демии наук</institution><country>Болгария</country></aff><aff xml:lang="en"><institution>Institute of Mathematics and Informatics, Bulgarian&#13;
Academy of Sciences</institution><country>Bulgaria</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2020</year></pub-date><pub-date pub-type="epub"><day>25</day><month>12</month><year>2020</year></pub-date><volume>21</volume><issue>3</issue><fpage>84</fpage><lpage>88</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Данчев П., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Данчев П.</copyright-holder><copyright-holder xml:lang="en">Danchev P.</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/853">https://www.chebsbornik.ru/jour/article/view/853</self-uri><abstract><p>Мы доказываем, что любая квадратная матрица над произвольным бесконечным по-лем является суммой матрицы с нулевым квадратом и диагонализуемой матрицы. Этотрезультат несколько контрастирует с недавней теоремой Бреза, опубликованной в LinearAlgebra &amp; Appl. (2018).</p></abstract><trans-abstract xml:lang="en"><p>We prove that any square matrix over an arbitrary infinite field is a sum of a square-zeromatrix and a diagonalizable matrix. This result somewhat contrasts recent theorem due toBreaz, published in Linear Algebra &amp; Appl. (2018).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>матрицы</kwd><kwd>рациональная форма</kwd><kwd>диагональная форма</kwd><kwd>нильпотенты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>matrices</kwd><kwd>rational form</kwd><kwd>diagonal form</kwd><kwd>nilpotents</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">A.N. Abyzov. { Strongly $q$-nil-clean rings} // Siber. Math. J. (2) {No.~60} (2019), 197--208.</mixed-citation><mixed-citation xml:lang="en">A.N. 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