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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">vestifm</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-математических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-2430</issn><issn pub-type="epub">2524-2415</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">vestifm-137</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>МАТЕМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICS</subject></subj-group></article-categories><title-group><article-title>О	ЛИНЕЙНЫХ ОБОЛОЧКАХ КОММУТАНТОВ УНИТАРНЫХ ГРУПП НЕКОММУТАТИВНЫХ КОНЕЧНОМЕРНЫХ АЛГЕБР С ДЕЛЕНИЕМ</article-title><trans-title-group xml:lang="en"><trans-title>ON LINEAR SPANS OF THE COMMUTATOR SUBGROUPS OF UNITARY GROUPS OF NON-COMMUTATIVE FINITE DIMENSIONAL DIVISION ALGEBRAS</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>Прокопчук</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Prokopchuk</surname><given-names>A. V.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Янчевский</surname><given-names>В. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Yanchevskii</surname><given-names>V. I.</given-names></name></name-alternatives><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики Национальной академии наук Беларуси, Минск</institution></aff><aff xml:lang="en"><institution>Institute of Mathematics of the National Academy of Sciences of Belarus, Minsk</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2014</year></pub-date><pub-date pub-type="epub"><day>19</day><month>05</month><year>2016</year></pub-date><volume>0</volume><issue>4</issue><fpage>61</fpage><lpage>64</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Прокопчук А.В., Янчевский В.И., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Прокопчук А.В., Янчевский В.И.</copyright-holder><copyright-holder xml:lang="en">Prokopchuk A.V., Yanchevskii V.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://vestifm.belnauka.by/jour/article/view/137">https://vestifm.belnauka.by/jour/article/view/137</self-uri><abstract><p>Пусть K/k - квадратичное сепарабельное расширение, char K ≠ 2, A - некоммутативная конечномерная K-алгебра с делением с k-инволюцией. Для алгебр A простого индекса взаимно простого с char K доказана следу¬ющая гипотеза: k-линейная оболочка коммутанта унитарной группы совпадает с A.</p></abstract><trans-abstract xml:lang="en"><p>Let K/к be a separable quadratic extension, char K ≠ 2, A a non-commutative finite dimensional central K-division algebra with unitary к-involution. For algebras A of prime index relatively prime to char K we prove the following conjecture: к-linear span of the commutator subgroup of а unitary group of A coincides with A.</p></trans-abstract></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Дьёдонне Ж. Геометрия классических групп. М., 1974.</mixed-citation><mixed-citation xml:lang="en">Дьёдонне Ж. Геометрия классических групп. М., 1974.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Hahn A. 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