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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">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">10.22405/2226-8383-2021-22-3-232-244</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1089</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>¯𝜔-веерные формации конечных групп</article-title><trans-title-group xml:lang="en"><trans-title>𝜔-fibered Formations of Finite Groups</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>Сорокина</surname><given-names>Марина Михайловна</given-names></name><name name-style="western" xml:lang="en"><surname>Sorokina</surname><given-names>Marina Mikhailovna</given-names></name></name-alternatives><bio xml:lang="ru"><p> доктор физико-математических наук</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences</p></bio><email xlink:type="simple">mmsorokina@yandex.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>Горепекина</surname><given-names>Анастасия Андреевна</given-names></name><name name-style="western" xml:lang="en"><surname>Gorepekina</surname><given-names>Anastasia Andreevna</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант</p></bio><bio xml:lang="en"><p>postgraduate student</p></bio><email xlink:type="simple">nastya3296@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Брянский государственный университет им. И. Г. Петровского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bryansk State University named after I. G. Petrovsky</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Брянский государственный университет им. И. Г. Петровского</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Bryansk State University named&#13;
after I. G. Petrovsky</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>11</day><month>11</month><year>2021</year></pub-date><volume>22</volume><issue>3</issue><fpage>232</fpage><lpage>244</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Сорокина М.М., Горепекина А.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Сорокина М.М., Горепекина А.А.</copyright-holder><copyright-holder xml:lang="en">Sorokina M.M., Gorepekina A.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://www.chebsbornik.ru/jour/article/view/1089">https://www.chebsbornik.ru/jour/article/view/1089</self-uri><abstract><p>Рассматриваются только конечные группы. Работа посвящена исследованию формаций, т.е. классов групп, замкнутых относительно гомоморфных образов и подпрямых про-изведений. Для непустого множества 𝜔 простых чисел В.А. Ведерниковым с помощью двух видов функций были определены 𝜔-веерные формации конечных групп. Развиваяфункциональный подход, предложенный В.А. Ведерниковым, в данной работе для произвольного разбиения ¯𝜔 множества 𝜔 построены ¯𝜔-веерные формации. При построениииспользуется 𝜎-концепция А.Н. Скибы исследования конечных групп и их классов, где 𝜎 — произвольное разбиение множества P всех простых чисел. В работе приведены примеры ¯𝜔-веерных формаций, установлены их свойства (существование ¯𝜔-спутников различныхвидов; достаточные условия принадлежности группы 𝐺 ¯𝜔-веерной формации; взаимосвязь с 𝜔-вееерными и P𝜎-веерными формациями).</p></abstract><trans-abstract xml:lang="en"><p>Only finite groups are considered. The work is devoted to the study of formations which are classes of groups that are closed with respect to homomorphic images and subdirect products.For a non-empty set 𝜔 of primes V.A. Vedernikov, using two types of functions, defined 𝜔-fibered formations of finite groups. Developing this functional approach, in the paper for an arbitrarypartition ¯𝜔 of the set 𝜔 we constructed ¯𝜔-fibered formations. The construction uses the 𝜎- concept of A.N. Skiba for the study of finite groups and their classes, where 𝜎 is an arbitrary partition of the set P of all primes. We gave examples of ¯𝜔-fibered formations, established their properties (existence of ¯𝜔-satellites of different types; sufficient conditions for a group 𝐺 to belong to an ¯𝜔-fibered formation; relationship with 𝜔-fibered and P𝜎-fibered formations).</p></trans-abstract><kwd-group xml:lang="ru"><kwd>конечная группа</kwd><kwd>класс групп</kwd><kwd>формация</kwd><kwd>¯𝜔-веерная формация</kwd><kwd>на- правление ¯𝜔-веерной формации.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>finite group</kwd><kwd>class of groups</kwd><kwd>formation</kwd><kwd>¯𝜔-fibered formation</kwd><kwd>direction of an ¯𝜔- fibered formation.</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">Чунихин С. А. Подгруппы конечных групп. – Минск: Наука и техника, 1964, 158 с.</mixed-citation><mixed-citation xml:lang="en">Chunikhin, С. 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