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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">10.55452/1998-6688-2025-22-3-231-242</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz29-2120</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>МАТЕМАТИЧЕСКИЕ НАУКИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICAL SCIENCES</subject></subj-group></article-categories><title-group><article-title>ВЕСОВЫЕ НЕРАВЕНСТВА ДЛЯ СУММЫ РЯДОВ ПО МУЛЬТИПЛИКАТИВНЫМ СИСТЕМАМ</article-title><trans-title-group xml:lang="en"><trans-title>WEIGHT INEQUALITIES FOR THE SUM OF SERIES WITH RESPECT TO THE MULTIPLICATIVE SYSTEMS</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0007-1422-8160</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Тургумбаев</surname><given-names>М. Ж.</given-names></name><name name-style="western" xml:lang="en"><surname>Turgumbaev</surname><given-names>M. Zh.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.ф.-м.н., доцент</p><p>г. Караганда</p></bio><bio xml:lang="en"><p>Cand.Phys.-Math.Sc., Associate Professor</p><p>Karaganda</p></bio><email xlink:type="simple">mentur60@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/0009-0002-3632-2303</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Мұхамбетжан</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Mukhambetzhan</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>докторант</p><p>г. Астана </p></bio><bio xml:lang="en"><p>PhD student</p><p>Astana</p></bio><email xlink:type="simple">manshuk-9696@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0005-9114-7247</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Сулейменова</surname><given-names>З. Р.</given-names></name><name name-style="western" xml:lang="en"><surname>Suleimenova</surname><given-names>Z. R.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.ф.-м.н., доцент</p><p>г. Астана</p></bio><bio xml:lang="en"><p>Cand.Phys.-Math.Sc., Associate Professor </p><p>Astana</p></bio><email xlink:type="simple">zr-s2012@yandex.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Карагандинский государственный университет им. Е.А. Букетова<country>Казахстан</country></aff><aff xml:lang="en">Karaganda Buketov University<country>Kazakhstan</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru">Евразийский национальный университет им. Л.Н. Гумилева<country>Казахстан</country></aff><aff xml:lang="en">Eurasian National University<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>27</day><month>09</month><year>2025</year></pub-date><volume>22</volume><issue>3</issue><fpage>231</fpage><lpage>242</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тургумбаев М.Ж., Мұхамбетжан М.А., Сулейменова З.Р., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Тургумбаев М.Ж., Мұхамбетжан М.А., Сулейменова З.Р.</copyright-holder><copyright-holder xml:lang="en">Turgumbaev M.Z., Mukhambetzhan M.A., Suleimenova Z.R.</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/2120">https://vestnik.kbtu.edu.kz/jour/article/view/2120</self-uri><abstract><p>В работе рассматриваются ряды по мультипликативным системам Прайса с коэффициентами, принадлежащими классу последовательностей ограниченной вариации. Установлены условия для оценки нормы суммы таких рядов в весовых пространствах Лебега. Условия сформулированы в терминах весовой функции и соответствующей весовой последовательности. Методология включает техники гармонического анализа, преобразование Абеля и критерии Макенхаупта об ограниченности оператора Харди в весовых пространствах Лебега. Кроме того, рассматриваются дискретные трехвесовые неравенства Харди и анализируется их применимость к рассматриваемым рядам. Полученные теоремы устанавливают связь между вариацией коэффициентов и интегральными характеристиками весов. Результаты представляют интерес для дальнейшего исследования в рамках теории рядов, гармонического анализа и задач, связанных с оценками решений дифференциальных уравнений в функциональных пространствах. Работа расширяет область применения известных аналитических техник к более широкому классу функциональных рядов. Результаты сформулированы в виде теорем, связывающих вариацию коэффициентов ряда и интегральные свойства весовой функции. Работа также использует критерии дискретных трехвесовых неравенств Харди и анализирует их применимость к мультипликативным системам. Полученные результаты применимы в задачах гармонического анализа, теории дифференциальных уравнений.</p></abstract><trans-abstract xml:lang="en"><p>This paper investigates series over Price multiplicative systems with coefficients belonging to the class of sequences of bounded variation. Conditions are obtained for estimating the norm of the sum of such series in weighted Lebesgue spaces. These conditions are formulated in terms of the weight function and the corresponding weight sequence. The methodology relies on techniques of harmonic analysis, the Abel transformation, and the Muckenhoupt criteria for the boundedness of the Hardy operator in weighted Lebesgue spaces. Additionally, discrete three-weight Hardy inequalities are considered, and their applicability to the analyzed series is examined. The main theorems establish a relationship between the variation of the coefficients and the integral characteristics of the weights. The results extend the applicability of known analytical methods to a wider class of functional series and are of interest in harmonic analysis, series theory, and the estimation of solutions to differential equations in functional spaces.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>мультипликативные системы</kwd><kwd>взвешенные пространства Лебега</kwd><kwd>последовательность из класса ограниченной вариации</kwd><kwd>оператор Харди</kwd><kwd>условия интегрируемости</kwd></kwd-group><kwd-group xml:lang="en"><kwd>multiplicative systems</kwd><kwd>weighted Lebesgue spaces</kwd><kwd>sequence from the class of bounded variation</kwd><kwd>Hardy operator</kwd><kwd>integrability conditions</kwd></kwd-group><funding-group xml:lang="ru"><funding-statement>Исследование М. Тургумбаев, М. Мухамбетжан выполнено при финансовой поддержке гранта Министерства науки и высшего образования Республики Казахстан (проект № AP26196065). Авторы выражают благодарность Н.А. 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