<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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">10.55452/1998-6688-2024-21-4-136-145</article-id><article-id custom-type="elpub" pub-id-type="custom">kaz29-1546</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>ВЕСОВАЯ ОЦЕНКА МАТРИЧНОГО ОПЕРАТОРА С ПЕРЕМЕННЫМ ВЕРХНИМ ПРЕДЕЛОМ НА КОНУСЕ МОНОТОННЫХ ПОСЛЕДОВАТЕЛЬНОСТЕЙ</article-title><trans-title-group xml:lang="en"><trans-title>WEIGHTED ESTIMATE OF A MATRIX OPERATOR WITH VARIABLE UPPER LIMIT ON THE CONE OF MONOTONE SEQUENCES</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0000-6314-1343</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бесжанова</surname><given-names>А. Т.</given-names></name><name name-style="western" xml:lang="en"><surname>Beszhanova</surname><given-names>А. Т.</given-names></name></name-alternatives><bio xml:lang="ru"><p>магистр</p><p>г. Астана</p></bio><bio xml:lang="en"><p>Master</p><p>Astana</p></bio><email xlink:type="simple">beszhanova@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/0000-0002-5840-5401</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Байарыстанов</surname><given-names>А. О.</given-names></name><name name-style="western" xml:lang="en"><surname>Bayarystanov</surname><given-names>А. О.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.ф.-м.н.</p><p>г. Астана</p></bio><bio xml:lang="en"><p>Candidate of Physical and Mathematical Sciences</p><p>Astana</p></bio><email xlink:type="simple">oskar_62@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru">Евразийский национальный университет имени Л.Н. Гумилева<country>Казахстан</country></aff><aff xml:lang="en">L.N. Gumilyov Eurasian National University<country>Kazakhstan</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>24</day><month>12</month><year>2024</year></pub-date><volume>21</volume><issue>4</issue><fpage>136</fpage><lpage>145</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бесжанова А.Т., Байарыстанов А.О., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Бесжанова А.Т., Байарыстанов А.О.</copyright-holder><copyright-holder xml:lang="en">Beszhanova А.Т., Bayarystanov А.О.</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/1546">https://vestnik.kbtu.edu.kz/jour/article/view/1546</self-uri><abstract><p>Неравенство Харди было сформулировано в 1920 г. и окончательно доказано в 1925 г. С тех пор это неравенство получило значительное развитие. Первое развитие было связано с рассмотрением более общих весов. Следующим шагом было использование более общих операторов с другими ядрами вместо оператора Харди. В настоящее время существует много работ, посвященных неравенствам типа Харди с итерированными операторами. Мотивированные важными приложениями, все эти обобщения неравенства Харди изучаются не только на конусе неотрицательных функций, но и на конусе монотонных функций. В этой работе рассматривается задача о нахождении необходимых и достаточных условий выполнения весового неравенства типа Харди на конусе монотонных последовательностей при 1 &lt; p ≤ q &lt; ∞. Основным методом решений задачи является метод редукции, который с помощью принципа Сойера позволяет свести неравенство типа Харди на конусе монотонных последовательностей к некоторому неравенству для всех неотрицательных последовательностей.</p></abstract><trans-abstract xml:lang="en"><p>Hardy's inequality was formulated in 1920 and finally proved in 1925. Since then, this inequality has been significantly developed. The first development was related to the consideration of more general weights. The next step was to use more general operators with other kernels instead of the Hardy operator. Currently, there are many works devoted to Hardy-type inequalities with iterated operators. Motivated by important applications, all these generalizations of Hardy's inequality are studied not only on the cone of non-negative functions, but also on the cone of monotone functions. In this paper, we consider the problem of finding necessary and sufficient conditions for the fulfillment of a weighted Hardy-type inequality on the cone of monotone sequences for 1&lt;p≤q&lt;∞. The main method for solving the problem is the reduction method, which, using the Sawyer principle, allows us to reduce a Hardy-type inequality on the cone of monotone sequences to some inequality for all non-negative sequences.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>неравенство Харди</kwd><kwd>матричный оператор</kwd><kwd>монотонные последовательности</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Hardy's inequality</kwd><kwd>matrix operator</kwd><kwd>monotone sequences</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">Sawyer E. Boundedness of classical Lorentz spaces // Studia Math. – 1990. – V. 96. – P. 145–158.</mixed-citation><mixed-citation xml:lang="en">Sawyer E. Boundedness of classical Lorentz spaces. Studia Math., 1990, vol. 96, pp. 145–158.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Stepanov V.D. Integral operators on the cone of monotone functions // J. London Math. Soc. – 1993. – V. 48. – No. 3 – P. 465–487.</mixed-citation><mixed-citation xml:lang="en">Stepanov V.D. Integral operators on the cone of monotone functions. J. London Math. Soc., 1993, vol. 48, no. 3, pp. 465–487.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Heinig H.P., Stepanov V.D. Weighted Hardy inequalities for increasing functions // Canad. J. Math. – 1993. – V. 93. – No. 1. – P. 104–116.</mixed-citation><mixed-citation xml:lang="en">Heinig H.P., Stepanov V.D. Weighted Hardy inequalities for increasing functions. Canad. J. Math., 1993, vol. 93, no. 1, pp. 104–116.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Sinnamon G. Hardy’s Inequality and Monotonicity // Function Spaces Differential Operators and Nonlinear Analysis. Prague. – 2005. – P. 292–310.</mixed-citation><mixed-citation xml:lang="en">Sinnamon G. Hardy’s Inequality and Monotonicity. Function Spaces Differential Operators and Nonlinear Analysis. Prague, 2005, pp. 292–310.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Kufner F., Maligranda L., Persson L.E. The Hardy inequality. About its history and some related results. Pilsen: Vydavatelsky servis, 2007.</mixed-citation><mixed-citation xml:lang="en">Kufner F., Maligranda L., Persson L.E. The Hardy inequality. About its history and some related results. Pilsen: Vydavatelsky servis, 2007.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Kufner F., Persson L.E. Weighted Inequalities of Hardy Type. New Jersey, London, Singapore, Hong Kong: World Scientific, 2003.</mixed-citation><mixed-citation xml:lang="en">Kufner F., Persson L.E. Weighted Inequalities of Hardy Type. New Jersey, London, Singapore, Hong Kong: World Scientific, 2003.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Arendarenko L.S., Oinarov R., Persson L.-E. Some new Hardy – type integral inequalities on cones of monotone functions // Advances in Harmonic Analysis and Operator Theory. – 2013. – P. 77–89.</mixed-citation><mixed-citation xml:lang="en">Arendarenko L.S., Oinarov R., Persson L.-E. Some new Hardy – type integral inequalities on cones of monotone functions. Advances in Harmonic Analysis and Operator Theory, 2013, pp. 77–89.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Гогатишвили А., Степанов В.Д. Редукционные теоремы для весовых интегральных неравенств на конусе монотонных функции // Успехи мат. наук. – 2013. – Т. 68. – № 4(412). – С. 3–68.</mixed-citation><mixed-citation xml:lang="en">Gogatishvili A., Stepanov V.D. Redukcionnye teoremy dlya vesovykx integralnykh neravenstv na conuse monotonnyh funkcii. Uspexi mat. nauk., 2013, vol. 68, no. 4(412), pp. 3–68. [in Russian]</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Ойнаров Р., Шалгынбаева С.Х. Весовые неравенства Харди на конусе монотонных последовательностей // Известия НАН РК. Серия физ.-мат. – 1998. – № 1. – С. 33–42.</mixed-citation><mixed-citation xml:lang="en">Oinarov R., Shalgynbaeva S.Kh. Vesovye neravenstva Hardy na conuse monotonnyh posledovatelnostei. Izvestiya NAN RK. Serya fis-mat., 1998, no. 1, pp. 33–42. [in Russian]</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Шалгынбаева С.Х. Весовые оценки для класса матриц на конусе монотонных последовательностей // Известия НАН РК. Серия физ.-мат. – 1998. – № 5 – С. 76–80.</mixed-citation><mixed-citation xml:lang="en">Shalgynbaeva S.Kh. Vesovye ocenki dlya classa matric na conuse monotonnyh posledovatelnoctei. Izvestiya NAN RK. Seryafis-mat., 1998, no.5, pp. 76–80. [in Russian]</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Taspaganbetova Zh. Weighted Hardy type inequalities on the cone of monotone sequences // Mathematical Journal. – 2012. – V. 12. – No. 4(46). – P. 115–125.</mixed-citation><mixed-citation xml:lang="en">Taspaganbetova Zh. Weighted Hardy type inequalities on the cone of monotone sequences. Mathematical Journal, 2012, vol. 12, no. 4(46), pp. 115–125.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Taspaganbetova Zh. Weighted estimate for a class of matrices on the cone of monotone sequences // Eurasian Math. J. – 2012. – V. 3. – No. 46. – P. 137–146.</mixed-citation><mixed-citation xml:lang="en">Taspaganbetova Zh. Weighted estimate for a class of matrices on the cone of monotone sequences. Eurasian Math. J., 2012, vol. 3, no. 46, pp. 137–146.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Taspaganbetova Zh. Two-sided estimates for matrix operators on the cone of monotone sequences // J. Math. Anal. Appl. – 2014. – V. 410. – P. 82–93.</mixed-citation><mixed-citation xml:lang="en">Taspaganbetova Zh. Two-sided estimates for matrix operators on the cone of monotone sequences. J. Math. Anal. Appl., 2014, vol. 410, pp. 82–93.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Альхалил А. Дискретные неравенства типа Харди с переменными пределами суммирования I // Вестник РУДН. Серия. Математика. Информатика. Физика. – 2010. – № 4. – С. 55–68.</mixed-citation><mixed-citation xml:lang="en">Alhalil A. Diskretnye neravenstva tipa Hardy s peremrnnymi predelami summirovaniya I. Vestnik RUDN. Serya. Mathematika. Informatika. Fizika, 2010, vol. 4, pp. 55–68. [in Russian]</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Альхалил А. Дискретные неравенства типа Харди с переменными пределами суммирования II // Вестник РУДН. Серия. Математика. Информатика. Физика. – 2011. – № 1. – C. 5–13.</mixed-citation><mixed-citation xml:lang="en">Alhalil A. Diskretnye neravenstvа tipa Hardy s peremrnnymi predelami summirovaniya II, Vestnik RUDN. Serya. Mathematika. Informatika. Fizika, 2011, no.1, pp. 5–13. [in Russian]</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Альхалил А. Дискретные неравенства типа Харди с переменными пределами суммирования III // Вестник РУДН. Серия. Математика. Информатика. Физика. – 2011. – № 2. – С. 44–50.</mixed-citation><mixed-citation xml:lang="en">Alhalil A. Diskretnye neravenstva tipa Hardy s peremrnnymi predelami summirovaniya III // Vestnik RUDN. Serya. Mathematika. Informatika. Fizika, 2011, no. 2, pp. 44–50. [in Russian]</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Temirkhanova A., Beszhanova A. Boundedness and compactness of a certain class of matrix operators with variable limits of summation // Eurasian Math. J. – 2020. – V. 11. – No. 4. – P. 66–75.</mixed-citation><mixed-citation xml:lang="en">Temirkhanova A., Beszhanova A. Boundedness and compactness of a certain class of matrix operators with variable limits of summation. Eurasian Math. J., 2020, vol. 11, no. 4.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Oinarov R., Persson L-E., Temirkhanova A.M., Weighted inequalities for a class of matrix operators: the case p ≤ q // Math. Inequal. Appl. – 2009. – V. 12. – P. 891–903.</mixed-citation><mixed-citation xml:lang="en">Oinarov R., Persson L-E., Temirkhanova A.M., Weighted inequalities for a class of matrix operators: the case p ≤ q // Math. Inequal. Appl., 2009, vol. 12, pp. 891–903.</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>
