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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">izvuzmath</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Математика</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya Vysshikh Uchebnykh Zavedenii. Matematika</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0021-3446</issn><issn pub-type="epub">2076-4626</issn><publisher><publisher-name>Казанский (Приволжский) федеральный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26907/0021-3446-2023-10-83-89</article-id><article-id custom-type="elpub" pub-id-type="custom">izvuzmath-17</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>О конформно киллинговых векторных полях на 2-симметрическом неразложимом лоренцевом многообразии</article-title><trans-title-group xml:lang="en"><trans-title>On conformally Killing vector fields on a 2-symmetric indecomposable Lorentzian manifold</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>Гнедко</surname><given-names>М. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Gnedko</surname><given-names>M. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Гнедко Максим Евгеньевич.</p><p>просп. Ленина, д. 61, Барнаул, 656049</p></bio><bio xml:lang="en"><p>Maxim E. Gnedko.</p><p>61 Lenin Ave., Barnaul, 656049</p></bio><email xlink:type="simple">gnedko98@mail.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>Оскорбин</surname><given-names>Д. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Oskorbin</surname><given-names>D. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Оскорбин Дмитрий Николаевич.</p><p>просп. Ленина, д. 61, Барнаул, 656049</p></bio><bio xml:lang="en"><p>Dmitry N. Oskorbin.</p><p>61 Lenin Ave., Barnaul, 656049</p></bio><email xlink:type="simple">oskorbin@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>Родионов</surname><given-names>Е. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Rodionov</surname><given-names>E. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Родионов Евгений Дмитриевич.</p><p>просп. Ленина, д. 61, Барнаул, 656049</p></bio><bio xml:lang="en"><p>Evgeny D. Rodionov.</p><p>61 Lenin Ave., Barnaul, 656049</p></bio><email xlink:type="simple">edr2002@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Алтайский государственный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Altai State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>27</day><month>10</month><year>2023</year></pub-date><volume>0</volume><issue>10</issue><fpage>83</fpage><lpage>89</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гнедко М.Е., Оскорбин Д.Н., Родионов Е.Д., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Гнедко М.Е., Оскорбин Д.Н., Родионов Е.Д.</copyright-holder><copyright-holder xml:lang="en">Gnedko M.E., Oskorbin D.N., Rodionov E.D.</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://izvuzmath.elpub.ru/jour/article/view/17">https://izvuzmath.elpub.ru/jour/article/view/17</self-uri><abstract><p>Естественным обобщением киллинговых векторных полей являются конформно киллинговы векторные поля, которые играют важную роль в исследовании группы конформных преобразований многообразия, потоков Риччи на многообразии, теории солитонов Риччи. В данной работе исследованы конформно киллинговы векторные поля на 2-симметрических неразложимых лоренцевых многообразиях. Установлено, что конформный множитель конформного аналога уравнения Киллинга на них зависит от поведения тензора Вейля. Кроме того, в случае равенства нулю тензора Вейля, с помощью функций Эйри построены нетривиальные примеры конформно киллинговых векторных полей с переменным конформным множителем.</p></abstract><trans-abstract xml:lang="en"><p>A natural generalization of Killing vector fields are conformally Killing vector fields which play an important role in the study of the group of conformal transformations of manifolds, Ricci flows on manifolds, and the theory of Ricci solitons. In this paper, we study conformally Killing vector fields on 2-symmetric indecomposable Lorentzian manifolds. It is established that the conformal factor of the conformal analogue of the Killing equation on them depends on the behavior of the Weyl tensor. In addition, in the case when the Weyl tensor is equal to zero, non-trivial examples of conformally Killing vector fields with a variable conformal factor are constructed using the Airy functions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>конформно киллинговы векторные поля</kwd><kwd>лоренцевы многообразия</kwd><kwd>k-симметрические пространства</kwd><kwd>киллинговы векторные поля</kwd><kwd>солитоны Риччи</kwd></kwd-group><kwd-group xml:lang="en"><kwd>conformally Killing vector fields</kwd><kwd>Lorentzian manifolds</kwd><kwd>k-symmetric spaces</kwd><kwd>Killing vector fields</kwd><kwd>Ricci solitons</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при поддержке Российского научного фонда, грант № 22-21-00111 «Псевдоримановы многообразия с ограничениями на тензор Риччи».</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Cahen M., Wallach N. 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