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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 pub-id-type="doi">10.29235/1561-2430-2020-56-2-135-143</article-id><article-id custom-type="elpub" pub-id-type="custom">vestifm-515</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 классификации конечномерных гензелевых простых центральных алгебр с унитарными инволюциями</article-title><trans-title-group xml:lang="en"><trans-title>On the classification of finite-dimensional Henselian simple central algebras with unitary involutions</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>Говорушко</surname><given-names>И. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Govorushko</surname><given-names>I. O.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Говорушко Игорь Олегович – кандидат физико-математических наук, научный сотрудник отдела алгебры</p><p>ул. Сурганова, 11, 220072, г. Минск</p></bio><bio xml:lang="en"><p>Igor O. Govorushko – Ph. D. (Physics and Mathematics), Researcher of the Department of Algebra</p><p>11, Surganov Str., 220072, Minsk </p></bio><email xlink:type="simple">govorushko88@gmail.com</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>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><bio xml:lang="ru"><p>Янчевский Вячеслав Иванович – академик НАН Беларуси, доктор физико-математических наук, профессор, заведующий отделом алгебры</p><p>ул. Сурганова, 11, 220072, г. Минск</p></bio><bio xml:lang="en"><p>Vyacheslav I. Yanchevskii – Academician of the National Academy of Sciences of Belarus, Dr. Sc. (Physics and Mathematics), Professor, Head of the Department of Algebra</p><p>11, Surganov Str., 220072, Minsk </p></bio><email xlink:type="simple">yanch@im.bas-net.by</email><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</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>2020</year></pub-date><pub-date pub-type="epub"><day>08</day><month>07</month><year>2020</year></pub-date><volume>56</volume><issue>2</issue><fpage>135</fpage><lpage>143</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Говорушко И.О., Янчевский В.И., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Говорушко И.О., Янчевский В.И.</copyright-holder><copyright-holder xml:lang="en">Govorushko I.O., 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/515">https://vestifm.belnauka.by/jour/article/view/515</self-uri><abstract><p>Цель настоящей работы – исследовать проблему классификации конечномерных простых центральных K-алгебр, снабженных унитарными инволюциями. Для слабо разветвленных конечномерных центральных K-алгебр с делением, снабженных унитарными K/k-инволюциями (где поле инвариантов k гензелево), доказан критерий K-изоморфизма. Ранее в работах Ж.-П. Тиньоля, В. В. Курсова и В. И. Янчевского были определены обобщенные абелевы скрещенные произведения и доказан критерий K-изоморфизма обобщенных абелевых скрещенных произведений (D1, G, (ω, f )), (D2, G, (ϖ, g )), когда алгебры D1 и D2 совпадают. В данной статье этот критерий доказан для случая различных алгебр D1 и D2, при помощи которого получен основной результат работы.</p></abstract><trans-abstract xml:lang="en"><p>The purpose of this paper is to investigate the problem of the classification of finite-dimensional simple central K-algebras with unitary involutions. In this paper, K-isomorphism is proven for weakly ramified finite-dimensional central K-algebras with division and unitary K/k-involutions (where the invariant field k is Henselian). Earlier, in papers by J.-P. Tignol, V. V. Kursov and V. I. Yanchevskii, generalized Abelian crossed products were defined and the K-isomorphism of generalized Abelian crossed products (D1, G, (ω, f )) and (D2, G, (ϖ, g )), was proven for the case D1 = D2. In this paper, this criterion is proven when D1 and D2 are different. With the help of this criterion, the main result of this article is obtained.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>ассоциативные алгебры</kwd><kwd>гензелевы алгебры</kwd><kwd>конечномерные простые центральные алгебры</kwd><kwd>унитарные инволюции</kwd><kwd>обобщенные абелевы скрещенные произведения</kwd></kwd-group><kwd-group xml:lang="en"><kwd>associative algebras</kwd><kwd>Henselian algebras</kwd><kwd>finite-dimensional simple central algebras</kwd><kwd>unitary involutions</kwd><kwd>generalized Abelian crossed products</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">Tignol, J.-P. Generalized crossed products [Electronic Resource] / J.-P. Tignol. – Universite Catholique de Louvain, Louvain-la-Neuve, Belgium, 1987. Mode of access: https://perso.uclouvain.be/jean-pierre.tignol/Rapport106.pdf</mixed-citation><mixed-citation xml:lang="en">Tignol J.-P. 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