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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">10.29235/1561-2430-2021-57-4-464-469</article-id><article-id custom-type="elpub" pub-id-type="custom">vestifm-615</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>ФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICS</subject></subj-group></article-categories><title-group><article-title>Статические решения в скалярно-тензорной теории гравитации Фройнда – Намбу</article-title><trans-title-group xml:lang="en"><trans-title>Static solutions in the Freund – Nambu scalar-tensor theory of gravitation</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>Выблый</surname><given-names>Ю. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Vyblyi</surname><given-names>Yu. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Выблый Юрий Петрович – кандидат физико-математических наук, ведущий научный сотрудник</p><p>пр. Независимости, 68-2, 220072, г. Минск</p></bio><bio xml:lang="en"><p>Yuri P. Vyblyi – Ph. D. (Physics and Mathematics), Leading Researher</p><p>68-2, Nezavisimosti Ave., 220072, Minsk</p></bio><email xlink:type="simple">vyblyi@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>Кургузова</surname><given-names>О. Э.</given-names></name><name name-style="western" xml:lang="en"><surname>Kurguzova</surname><given-names>O. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Кургузова Оксана Георгиевна – младший научный сотрудник</p><p>пр. Независимости, 68-2, 220072, г. Минск</p></bio><bio xml:lang="en"><p>Oksana G. Kurguzova – Junior Researcher</p><p>68-2, Nezavisimosti Ave., 220072, Minsk</p></bio><email xlink:type="simple">kuppory@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт физики им. Б. И. Степанова Национальной академии наук Беларуси</institution></aff><aff xml:lang="en"><institution>B. I. Stepanov Institute of Physics of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>27</day><month>12</month><year>2021</year></pub-date><volume>57</volume><issue>4</issue><fpage>464</fpage><lpage>469</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Выблый Ю.П., Кургузова О.Э., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Выблый Ю.П., Кургузова О.Э.</copyright-holder><copyright-holder xml:lang="en">Vyblyi Y.P., Kurguzova O.G.</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/615">https://vestifm.belnauka.by/jour/article/view/615</self-uri><abstract><p>Рассмотрена система уравнений Эйнштейна и уравнения безмассового скалярного поля Фройнда – Намбу для статических сферически-симметричных и аксиально-симметричных полей. Показано, что данная система полевых уравнений расцепляется на гравитационную и скалярную подсистемы. Во втором постньютоновском приближении получены решения для сферически-симметричного и медленновращающегося источников. Обсуждается применение полученных решений к задачам астрофизики.</p></abstract><trans-abstract xml:lang="en"><p>Herein, the system of Einstein equations and the equation of the Freund – Nambu massless scalar field for static spherically symmetric and axially symmetric fields are considered. It is shown that this system of field equations decouples into gravitational and scalar subsystems. In the second post-Newtonian approximation, the solutions for spherically symmetric and slowly rotating sources are obtained. The application of the obtained solutions to astrophysical problems is discussed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гравитация</kwd><kwd>уравнения Эйнштейна</kwd><kwd>скалярное поле</kwd><kwd>сферическая симметрия</kwd><kwd>аксиальная симметрия</kwd><kwd>астрофизика</kwd></kwd-group><kwd-group xml:lang="en"><kwd>gravitation</kwd><kwd>Einstein's equations</kwd><kwd>scalar field</kwd><kwd>spherical symmetry</kwd><kwd>axial symmetry</kwd><kwd>astrophysics</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Авторы выражают благодарность И. А. Сивцову за помощь в проведении вычислений. Работа выполнена при поддержке Белорусского республиканского фонда фундаментальных исследований (проект № Ф20МЦ-003).</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">Sahny, Y. The cosmological constant problem and quintessence / Y. Sahny // Class. 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