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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">kaz29</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник Казахстанско-Британского технического университета</journal-title><trans-title-group xml:lang="en"><trans-title>Herald of the Kazakh-British Technical University</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1998-6688</issn><issn pub-type="epub">2959-8109</issn><publisher><publisher-name>Казахстанско-Британский Технический Университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.55452/1998-6688-2026-23-1-292-304</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz29-2523</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>ФИЗИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>ЧИСЛЕННОЕ ИССЛЕДОВАНИЕ УСТОЙЧИВОСТИ ОРБИТ В РЕЛЯТИВИСТСКОЙ ОГРАНИЧЕННОЙ ЗАДАЧЕ ТРЕХ ТЕЛ</article-title><trans-title-group xml:lang="en"><trans-title>NUMERICAL STUDY OF ORBITAL STABILITY IN THE RELATIVISTIC RESTRICTED THREE-BODY PROBLEM</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-7833-4858</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Оразымбет</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Orazymbet</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>магистр</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>MSc</p><p>Almaty</p></bio><email xlink:type="simple">ayazhan.orazymbet@kaznu.edu.kz</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5154-330X</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Таукенова</surname><given-names>А.</given-names></name><name name-style="western" xml:lang="en"><surname>Taukenova</surname><given-names>A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>PhD, ассоциированный профессор</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>PhD, Associate Professor</p><p>Almaty</p></bio><email xlink:type="simple">aliya_tauken@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9871-1884</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Утепова</surname><given-names>Д.,</given-names></name><name name-style="western" xml:lang="en"><surname>Utepova</surname><given-names>D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>PhD</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>PhD</p><p>Almaty</p></bio><email xlink:type="simple">d.utepova@abaiuniversity.edu.kz</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-1957-2768</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бейсен</surname><given-names>Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Beissen</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>PhD, профессор</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>PhD, Professor</p><p>Almaty</p></bio><email xlink:type="simple">nurzada.beissen@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0283-0273</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сандибаева</surname><given-names>Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Sandibayeva</surname><given-names>N.</given-names></name></name-alternatives><bio xml:lang="ru"><p> PhD, и.о. ассоциированного профессора</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>PhD, acting Associate Professor</p><p>Almaty</p></bio><email xlink:type="simple">nazirasandibaeva@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-6048-3221</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бейсенбекова</surname><given-names>Ж.</given-names></name><name name-style="western" xml:lang="en"><surname>Beisenbekova</surname><given-names>Zh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>магистр</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>MSc</p><p>Almaty</p></bio><email xlink:type="simple">tanatarova.0398@bk.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5699-4476</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>С.</surname><given-names>Тоқтарбай</given-names></name><name name-style="western" xml:lang="en"><surname>Toktarbay</surname><given-names>S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>PhD</p><p>г. Алматы</p></bio><bio xml:lang="en"><p>PhD</p><p>Almaty</p></bio><email xlink:type="simple">s.toktarbay@kaznu.edu.kz</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Казахский национальный университет им. аль-Фараби<country>Казахстан</country></aff><aff xml:lang="en">Al-Farabi Kazakh National University<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Казахский национальный университет им. аль-Фараби; Казахский национальный педагогический университет им. Абая<country>Казахстан</country></aff><aff xml:lang="en">Al-Farabi Kazakh National University; Abai Kazakh National Pedagogical University<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-3"><aff xml:lang="ru">Казахский национальный женский педагогический университет<country>Казахстан</country></aff><aff xml:lang="en">Kazakh National Women's Teacher Training University<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>29</day><month>03</month><year>2026</year></pub-date><volume>23</volume><issue>1</issue><fpage>292</fpage><lpage>304</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Оразымбет А., Таукенова А., Утепова Д., Бейсен Н., Сандибаева Н., Бейсенбекова Ж., С. Т., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Оразымбет А., Таукенова А., Утепова Д., Бейсен Н., Сандибаева Н., Бейсенбекова Ж., С. Т.</copyright-holder><copyright-holder xml:lang="en">Orazymbet A., Taukenova A., Utepova D., Beissen N., Sandibayeva N., Beisenbekova Z., Toktarbay S.</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://vestnik.kbtu.edu.kz/jour/article/view/2523">https://vestnik.kbtu.edu.kz/jour/article/view/2523</self-uri><abstract><p>В статье представлено подробное численное исследование ограниченной задачи трех тел в рамках общей теории относительности. На основе Лагранжевой и Гамильтоновой формулировок выведены уравнения движения с релятивистскими поправками до порядка 1/c2, которые решены численно в среде Wolfram Mathematica. Разработанная модель позволила исследовать устойчивость орбит при малых релятивистских возмущениях и сравнить полученные результаты с теоретическими предсказаниями. Численные расчеты выполнены методом Рунге–Кутты для трех систем: «Земля – Солнце – Луна», «Земля – Солнце – Меркурий» и системы с равными массами. Полученные данные подтвердили устойчивость круговых орбит и воспроизвели наблюдаемый эффект смещения перигелия Меркурия. В случае равных масс обнаружен переход от квазипериодического движения к хаотическому, зависящий от начальных параметров. Проведенное исследование демонстрирует высокую точность и надежность численного метода в среде Wolfram Mathematica и подчеркивает его практическую ценность для моделирования нелинейной релятивистской динамики, анализа орбитальной устойчивости и дальнейших исследований в области небесной механики и гравитационной физики.</p></abstract><trans-abstract xml:lang="en"><p>This paper presents a numerical study of the relativistic restricted three-body problem within the framework of General Relativity. Using the Lagrangian and Hamiltonian formalisms, the equations of motion with relativistic corrections up to the order of 1/c2 were derived and solved numerically in Wolfram Mathematica. The developed model allows one to analyze orbital stability under small relativistic perturbations. Numerical simulations were performed using the Runge–Kutta integration method for three systems: “Earth–Sun–Moon,” “Earth–Sun– Mercury,” and an equal-mass configuration. The results confirm the stability of circular orbits and reproduce the observed relativistic precession of Mercury’s perihelion. For the equal-mass system, the calculations reveal a transition from quasi-periodic to chaotic motion, depending on the initial conditions. The study demonstrates the reliability and efficiency of the Mathematica environment for modeling nonlinear relativistic dynamics and shows that the proposed approach can be useful for further research in celestial mechanics and gravitational physics.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>задача трех тел</kwd><kwd>общая теория относительности</kwd><kwd>Лагранжева функция</kwd><kwd>численное моделирование</kwd><kwd>устойчивость орбит</kwd></kwd-group><kwd-group xml:lang="en"><kwd>three-body problem</kwd><kwd>general relativity</kwd><kwd>Lagrangian function</kwd><kwd>numerical modeling</kwd><kwd>orbital stability</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Данное исследование финансировалось Министерством науки и высшего образования Республики Казахстан (грант № АР23489541).</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">Ландау Л.Д., Лифшиц Е.М. 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