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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">10.22405/2226-8383-2025-26-4-432-437</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-2096</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>Краткие сообщения</subject></subj-group></article-categories><title-group><article-title>О наилучших совместных приближениях Дирихле</article-title><trans-title-group xml:lang="en"><trans-title>On the best joint Dirichlet approximations</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>Балаба</surname><given-names>Ирина Николаевна</given-names></name><name name-style="western" xml:lang="en"><surname>Balaba</surname><given-names>Irina Nikolaevna</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences, professor</p></bio><email xlink:type="simple">ibalaba@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>Гаврилов</surname><given-names>Иван Николаевич</given-names></name><name name-style="western" xml:lang="en"><surname>Gavrilov</surname><given-names>Ivan Nikolaevich</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p></bio><bio xml:lang="en"><p>student</p></bio><email xlink:type="simple">vano963542@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Калинкина</surname><given-names>Татьяна Алексеевна</given-names></name><name name-style="western" xml:lang="en"><surname>Kalinkina</surname><given-names>Tatyana Alekseevna</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p></bio><bio xml:lang="en"><p>student</p></bio><email xlink:type="simple">kalinka20001@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>Медведева</surname><given-names>Наталья Васильевна</given-names></name><name name-style="western" xml:lang="en"><surname>Medvedeva</surname><given-names>Natalya Vasilievna</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p></bio><bio xml:lang="en"><p>student</p></bio><email xlink:type="simple">nadin26032004@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>Соловьева</surname><given-names>Вероника Сергеевна</given-names></name><name name-style="western" xml:lang="en"><surname>Solovieva</surname><given-names>Veronika Sergeevna</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p></bio><bio xml:lang="en"><p>student</p></bio><email xlink:type="simple">veronika15112004@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>Ульченко</surname><given-names>Екатерина Сергеевна</given-names></name><name name-style="western" xml:lang="en"><surname>Ulchenko</surname><given-names>Ekaterina Sergeevna</given-names></name></name-alternatives><bio xml:lang="ru"><p>студент</p></bio><bio xml:lang="en"><p>student</p></bio><email xlink:type="simple">alyavoronczova@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Тульский государственный педагогический университет им. Л. Н. Толстого</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tula State Lev Tolstoy Pedagogical University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Тульский государственный педагогический уни-&#13;
верситет им. Л. Н. Толстого</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tula State Lev Tolstoy Pedagogical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>29</day><month>12</month><year>2025</year></pub-date><volume>26</volume><issue>4</issue><fpage>432</fpage><lpage>437</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Балаба И.Н., Гаврилов И.Н., Калинкина Т.А., Медведева Н.В., Соловьева В.С., Ульченко Е.С., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Балаба И.Н., Гаврилов И.Н., Калинкина Т.А., Медведева Н.В., Соловьева В.С., Ульченко Е.С.</copyright-holder><copyright-holder xml:lang="en">Balaba I.N., Gavrilov I.N., Kalinkina T.A., Medvedeva N.V., Solovieva V.S., Ulchenko E.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://www.chebsbornik.ru/jour/article/view/2096">https://www.chebsbornik.ru/jour/article/view/2096</self-uri><abstract><p>В работе строится программа нахождения наилучших совместных приближений второго рода для зависимых иррациональностей.Приводятся результаты расчётов в системе компьютерной математики mathcad15, которые подтверждают выводы работы [<xref ref-type="bibr" rid="cit2">2</xref>], что начиная с некоторого места все совместныенаилучшие приближения второго рода зависимых случайных величин определяются знаменателями подходящих дробей основной иррациональности, которой кратны все остальные.</p></abstract><trans-abstract xml:lang="en"><p>This paper develops a program for finding best joint approximations of the second kind for dependent irrationalities.The results of calculations using the mathcad15 computer mathematics system are presented, confirming the conclusions of [<xref ref-type="bibr" rid="cit2">2</xref>] that, starting from a certain point, all joint best approximations of the second kind for dependent random variables are determined by the denominators of the convergents of the fundamental irrationality, of which all others are multiples.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>совместные наилучшие приближения Дирихле.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>joint best Dirichlet approximations.</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">Г. Дэвенпорт. Высшая арифметика: введение в теорию чисел / Г. Дэвенпорт; пер. с англ. Б. З. Мороза; под ред. Ю. В. Линника. – Москва: Наука, 1965.</mixed-citation><mixed-citation xml:lang="en">G. Davenport, 1965, "Higher Arithmetic: An Introduction to Number Theory" / G. Davenport; translated from English by B. Z. Moroz; edited by Yu. V. Linnik. – Moscow: Nauka</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">М. Н. Добровольский, Н. Н. Добровольский, Н. М. Добровольский. Об одном случае совместных приближений Дирихле // Чебышевcкий сборник. 2024. Т. 26, вып. 4, С.</mixed-citation><mixed-citation xml:lang="en">M. N. Dobrovolsky, N. N. Dobrovolsky, N. M. Dobrovolsky, 2024, "On a case of joint Dirichlet approximations" , Chebyshevskii sbornik, vol. 26, no. 4, pp.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Фельдман Н. И. Приближения алгебраических чисел. — М.: Изд-во Моск. ун-та, 1981. —200 с.</mixed-citation><mixed-citation xml:lang="en">Feldman N. I. 1981, "Approximation of algebraic numbers." — Moscow: Izd-vo Mosk. University, p. 200</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">А. Я. Хинчин. Цепные дроби. М.: Физматлит. 1961.</mixed-citation><mixed-citation xml:lang="en">A. Ya. Khinchin, 1961, “Continued fractions”, Moscow: Fizmatlit.</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>
