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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</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">dan-383</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>ТРЕХМЕРНЫЕ РЕДУКТИВНЫЕ ОДНОРОДНЫЕ ПРОСТРАНСТВА НЕРАЗРЕШИМЫХ ГРУПП ЛИ</article-title><trans-title-group xml:lang="en"><trans-title>THREE-DIMENSIONAL REDUCTIVE HOMOGENEOUS SPACES OF UNSOLVABLE LIE 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>Можей</surname><given-names>Н. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Mozhey</surname><given-names>N. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. физ.-мат. наук, доцент</p></bio><email xlink:type="simple">mozheynatalya@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет информатики и радиоэлектроники</institution></aff><aff xml:lang="en"><institution>Belarusian State University of Informatics and Radioelectronics</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>02</day><month>03</month><year>2017</year></pub-date><volume>61</volume><issue>1</issue><fpage>7</fpage><lpage>17</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Можей Н.П., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Можей Н.П.</copyright-holder><copyright-holder xml:lang="en">Mozhey N.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://doklady.belnauka.by/jour/article/view/383">https://doklady.belnauka.by/jour/article/view/383</self-uri><abstract><p>В работе представлена локальная классификация трехмерных редуктивных однородных пространств, допускающих нормальную связность. Рассматривается случай неразрешимой группы Ли преобразований с разрешимым стабилизатором. Описаны все инвариантные аффинные связности вместе с их тензорами кривизны и кручения, выписаны канонические связности, а также естественные связности без кручения. Исследованы алгебры голономии однородных пространств и найдено, когда инвариантная связность нормальна.</p></abstract><trans-abstract xml:lang="en"><p>In this article we present a local classification of three-dimensional reductive homogeneous spaces allowing a normal connection. We have concerned the case of the unsolvable Lie group of transformations with a solvable stabilizer. We describe all invariant affine connections together with their curvature and torsion tensors, canonical connections and natural torsion-free connections. We have studied the holonomy algebras of homogeneous spaces and have found when the invariant connection is normal.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>нормальная связность</kwd><kwd>редуктивное пространство</kwd><kwd>группа преобразований</kwd><kwd>алгебра голономии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>normal connection</kwd><kwd>reductive space</kwd><kwd>transformation group</kwd><kwd>holonomy algebra</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">Кобаяси, Ш. Основы дифференциальной геометрии: в 2 т. / Ш. Кобаяси, К. Номидзу. – М.: Наука, 1981.</mixed-citation><mixed-citation xml:lang="en">Kobayashi Sh., Nomizu K. Foundations of differential geometry. New York, Interscience Publishers, 1963.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Онищик, А. Л. Топология транзитивных групп Ли преобразований / А. Л. Онищик. – М.: Физматлит, 1995. – 384 с.</mixed-citation><mixed-citation xml:lang="en">Onishchik A. L. Topology of transitive transformation groups. Moscow, Fizmatlit Publ., 1995. 384 p. (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Можей, Н. П. Трехмерные изотропно-точные однородные пространства и связности на них / Н. П. Можей. – Казань: Изд-во Казан. ун-та, 2015. – 394 с.</mixed-citation><mixed-citation xml:lang="en">Mozhey N. P. Three-dimensional isotropically-faithful homogeneous spaces and connections on them. Kazan, Publisher University of Kazan, 2015. 394 p. (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Можей, Н. П. Нормальные связности на трехмерных однородных пространствах с неразрешимой группой преобразований. II. Разрешимый стабилизатор / Н. П. Можей // Учен. зап. Казан. ун-та. Сер. физ.-мат. науки. – 2014. – Т. 156. – С. 51–70.</mixed-citation><mixed-citation xml:lang="en">Mozhey N. P. Normal Connections on Three-Dimensional Homogeneous Spaces with a Non-Solvable Transformation Group. II. A Solvable Stabilizer. Uchenye Zapiski Kazanskogo Universiteta. Seriya Fiziko-Matematicheskie Nauki [Proceedings of Kazan University. Physics and Mathematics Series], 2014, vol. 156, pp. 51–70. (in Russian)</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Nomizu, K. Invariant affine connections on homogeneous spaces / K. Nomizu // Amer. J. Math. – 1954. – Vol. 76, N 1. – P. 33–65. doi.org/10.2307/2372398.</mixed-citation><mixed-citation xml:lang="en">Nomizu K. Invariant affine connections on homogeneous spaces. American Journal of Mathematics, 1954, vol. 76, no. 1, pp. 33–65. doi.org/10.2307/2372398.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
