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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">10.22405/2226-8383-2021-22-3-467-473</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1107</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 глобальной разрешимости уравнения Кана — Хилларда</article-title><trans-title-group xml:lang="en"><trans-title>On the global solvability of the Kana–Hillard equation</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>Тарамова</surname><given-names>Хеди Сумановна</given-names></name><name name-style="western" xml:lang="en"><surname>Taramova</surname><given-names>Khedi Sumanovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук, </p></bio><bio xml:lang="en"><p>candidate of physical and mathematical sciences</p></bio><email xlink:type="simple">thedi@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Чеченский государственный педагогический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Chechen State Pedagogical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>12</day><month>11</month><year>2021</year></pub-date><volume>22</volume><issue>3</issue><fpage>467</fpage><lpage>473</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Тарамова Х.С., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Тарамова Х.С.</copyright-holder><copyright-holder xml:lang="en">Taramova K.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/1107">https://www.chebsbornik.ru/jour/article/view/1107</self-uri><abstract><p>В статье исследуется глобальная по времени разрешимость решения задачи Коши для нелинейного дифференциального уравнения в частных производных соболевского типа,не разрешенного относительно временной производной первого порядка, так называемого уравнения Кана-Хилларда, в банаховом пространстве непрерывных ограниченных функций на всей числовой оси, для которых существуют пределы на минус и плюс бесконечности. Доказано существование классического решения (под которым понимается достаточно гладкая функция, имеющая все непрерывные производные нужного порядка и удовлетворяющая уравнению в каждой точке области задания рассматриваемой задачи Коши) на произвольном временном интервале. Получены априорные оценки, обеспечивающие существование глобального решения задачи Коши для псевдопараболического уравненияКана-Хилларда, так как классическое решение 𝑣 (𝑥, 𝑡) с отрезка [0, 𝑡*], принимая 𝑣 (𝑥, 𝑡*) за новую начальную функцию, продолжается до классического решения 𝑣 (𝑥, 𝑡) на отрезке [0, 𝑡* + 𝛿] , где величина 𝛿 зависит только от нормы начальной функции и параметров уравнения Кана-Хилларда. Повторяя этот процесс достаточно большое число раз получим классическое решение рассматриваемой задачи Коши на произвольном временном интервале.</p></abstract><trans-abstract xml:lang="en"><p>for a nonlinear partial differential equation of Sobolev type that is not resolved with respect to the time derivative of the first order, the so-called Cahn-Hillard equation, in the Banach space of continuous bounded functions on the entire number axis, for which there are limits by minus and plus infinity. The existence of a classical solution is proved (by which we mean a sufficiently smooth function that has all continuous derivatives of the required order and satisfies the equation at each point of the domain of the considered Cauchy problem) on an arbitrarytime interval. A priori estimates are obtained that ensure the existence of a global solution to the Cauchy problem for the pseudoparabolic Cahn-Hillard equation, since the classical solution 𝑣 (𝑥, 𝑡) from the interval [0, 𝑡*], taking 𝑣 (𝑥, 𝑡*) as a new initial function, continues to the classical solution 𝑣 (𝑥, 𝑡) on the interval [0, 𝑡* + 𝛿], where the value of 𝛿 depends only on the norm of the initial function and the parameters of the Cahn-Hillard equation. Repeating this process, a sufficiently large number of times, we obtain the classical solution of the considered Cauchy problem on an arbitrary time interval.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>уравнение Кана-Хилларда</kwd><kwd>оценки решения уравнения</kwd><kwd>глобальная разрешимость.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Cahn-Hilliard equation</kwd><kwd>estimates for the solution of an equation</kwd><kwd>global solvability.</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">Cahn, J.W. Free energy of a non-uniform system, Part I: Interfacial free energy / J.W. Cahn,</mixed-citation><mixed-citation xml:lang="en">Cahn, J.W. Free energy of a non-uniform system, Part I: Interfacial free energy / J.W. Cahn,</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">J.E. 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