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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">matatecs</journal-id><journal-title-group><journal-title xml:lang="ru">Математика и теоретические компьютерные науки</journal-title><trans-title-group xml:lang="en"><trans-title>Mathematics and Theoretical Computer Science</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2949-3919</issn><publisher><publisher-name>Казанский (Приволжский) федеральный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26907/2949-3919.2024.4.35-50</article-id><article-id custom-type="elpub" pub-id-type="custom">matatecs-62</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></article-categories><title-group><article-title>Некоторые свойства почти всех n-квазигрупп</article-title><trans-title-group xml:lang="en"><trans-title>Some properties of almost all n-quasigroups</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>Галатенко</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Galatenko</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Алексей Владимирович Галатенко</p><p>Ленинские горы, д. 1, г. Москва, 119991</p></bio><bio xml:lang="en"><p>Alexei Vladimirovich Galatenko</p><p>1 Leninskie Gory, Moscow 119991</p></bio><email xlink:type="simple">agalat@msu.ru</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>Галатенко</surname><given-names>В. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Galatenko</surname><given-names>V. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Владимир Владимирович Галатенко</p><p>Ленинские горы, д. 1, г. Москва, 119991</p></bio><bio xml:lang="en"><p>Vladimir Vladimirovich Galatenko</p><p>1 Leninskie Gory, Moscow 119991</p></bio><email xlink:type="simple">vgalat@msu.ru</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>Панкратьев</surname><given-names>А. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Pankratiev</surname><given-names>A. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Антон Евгеньевич Панкратьев</p><p>Ленинские горы, д. 1, г. Москва, 119991</p></bio><bio xml:lang="en"><p>Anton Evgevievich Pankratiev</p><p>1 Leninskie Gory, Moscow 119991</p></bio><email xlink:type="simple">apankrat@intsys.msu.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>МГУ имени М.В.Ломоносова, механико-математический факультет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow State University, Faculty of Mechanics and Mathematics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>24</day><month>01</month><year>2025</year></pub-date><volume>2</volume><issue>4</issue><fpage>35</fpage><lpage>50</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Галатенко А.В., Галатенко В.В., Панкратьев А.Е., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Галатенко А.В., Галатенко В.В., Панкратьев А.Е.</copyright-holder><copyright-holder xml:lang="en">Galatenko A.V., Galatenko V.V., Pankratiev A.E.</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://matatecs.elpub.ru/jour/article/view/62">https://matatecs.elpub.ru/jour/article/view/62</self-uri><abstract><p>Изучается “типичность” свойств простоты, неаффинности и полиномиальной полноты конечных n-квазигрупп. Показано, что при фиксированном n почти все n-квазигруппы сильно неаффинны, т.е. не изотопны аффинным. Найдено точное значение числа простых, аффинных и одновременно простых и аффинных n-квазигрупп порядка 4. Как следствие, показано, что почти все n-квазигруппы порядка 4 полиномиально полны и сильно неаффинны.</p></abstract><trans-abstract xml:lang="en"><p>We study the generic nature of simplicity, non-affinity and polynomial completeness of finite n-quasigroups. It is shown that for fixed n almost all n-quasigroups are strongly non-affine, i.e., not isotopic to affine n-quasigroups. Exact number of simple, affine and simultaneously simple and affine n-quasigroups of the order 4 is established. As a corollary, it is proven that almost all n-quasigroups of the order 4 are polynomially complete and strongly non-affine.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>квазигруппа</kwd><kwd>n-квазигруппа</kwd><kwd>простота</kwd><kwd>аффинность</kwd><kwd>полиномиальная полнота</kwd></kwd-group><kwd-group xml:lang="en"><kwd>quasigroup</kwd><kwd>n-quasigroup</kwd><kwd>simplicity</kwd><kwd>affinity</kwd><kwd>polynomial completeness</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">V.A. Shcherbacov, Quasigroups in cryptology, Comput. Sci. J. Mold. 17 (2), 193–228 (2009).</mixed-citation><mixed-citation xml:lang="en">V.A. Shcherbacov, Quasigroups in cryptology, Comput. Sci. J. Mold. 17 (2), 193–228 (2009).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">D. Chauhan, I. Gupta, R. 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