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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">mathematics</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник российских университетов. Математика</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Universities Reports. Mathematics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2686-9667</issn><issn pub-type="epub">2782-3342</issn><publisher><publisher-name>Тамбовский государственный университет имени Г.Р. Державина</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">mathematics-7</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>НАУЧНЫЕ СТАТЬИ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>ORIGINAL ARTICLES</subject></subj-group></article-categories><title-group><article-title>Существование и единственность решений стохастических дробных дифференциальных уравнений в нескольких временных шкалах</article-title><trans-title-group xml:lang="en"><trans-title>Existence and uniqueness of solutions to stochastic fractional differential equations in multiple time scales</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-5018-6577</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Поносов</surname><given-names>Аркадий Владимирович</given-names></name><name name-style="western" xml:lang="en"><surname>Ponosov</surname><given-names>Arcady</given-names></name></name-alternatives><email xlink:type="simple">arkadi@nmbu.no</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Норвежский университет естественных наук</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Norwegian University of Life Sciences</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>24</day><month>03</month><year>2023</year></pub-date><volume>28</volume><issue>141</issue><fpage>51</fpage><lpage>59</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Поносов А.В., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Поносов А.В.</copyright-holder><copyright-holder xml:lang="en">Ponosov A.</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://mathematics.elpub.ru/jour/article/view/7">https://mathematics.elpub.ru/jour/article/view/7</self-uri><abstract><p>В статье вводится новый класс нелинейных стохастических дифференциальных уравнений дробного порядка с запаздыванием и дифференциалами Жюмари и Ито. Цель исследования — доказать существование и единственность решений этих уравнений. Основные результаты статьи обобщают некоторые предыдущие выводы, сделанные для уравнений без запаздывания с тремя временными шкалами и при дополнительных ограничениях на дробный порядок дифференциалов Жюмари, которые снимаются в нашем анализе. Методы, использованные в статье, основаны на свойствах сингулярных интегральных операторов в специально сконструированных пространствах случайных процессов, представлении уравнений с запаздыванием в виде функционально-дифференциальных уравнений, а также на итерационном методе Пикара.</p></abstract><trans-abstract xml:lang="en"><p>A novel class of nonlinear stochastic fractional differential equations with delay and the Jumarie and Ito differentials is introduced in the paper. The aim of the study is to prove existence and uniqueness of solutions to these equations. The main results of the paper generalise some previous findings made for the non-delay and three-scale equations under additional restrictions on the fractional order of the Jumarie differentials, which are removed in our analysis. The techniques used in the paper are based on the properties of the singular integral operators in specially designed spaces of stochastic processes, the representation of delay equations as functional differential equations as well as Picard’s iterative method.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>производная Жюмари</kwd><kwd>броуновское движение</kwd><kwd>мультивременные шкалы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Jumarie derivative</kwd><kwd>Brownian motion</kwd><kwd>multi-time scales</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">J.-C. Pedjeu, G.S. Ladde, “Stochastic fractional differential equations: Modeling, method and analysis”, Chaos, Solitons &amp; Fractals, 45 (2012), 279–293.</mixed-citation><mixed-citation xml:lang="en">J.-C. Pedjeu, G.S. Ladde, “Stochastic fractional differential equations: Modeling, method and analysis”, Chaos, Solitons &amp; Fractals, 45 (2012), 279–293.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">G. Jumarie, “Modified Riemann-Liouville derivative and fractional Taylor series of nondifferentiable functions further results”, Computational Mathematics and Applications, 51:9-10 (2006), 1367–1376.</mixed-citation><mixed-citation xml:lang="en">G. Jumarie, “Modified Riemann-Liouville derivative and fractional Taylor series of nondifferentiable functions further results”, Computational Mathematics and Applications, 51:9-10 (2006), 1367–1376.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">B. Øksendal, Stochastic Differential Equations. An Introduction with Applications, Springer, 2014.</mixed-citation><mixed-citation xml:lang="en">B. Øksendal, Stochastic Differential Equations. An Introduction with Applications, Springer, 2014.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">I. Neveu, Discrete Parameter Martingales, North-Holland, Amsterdam, 1975.</mixed-citation><mixed-citation xml:lang="en">I. Neveu, Discrete Parameter Martingales, North-Holland, Amsterdam, 1975.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">N.V. Azbelev, V.P. Maksimov, L.F. Rakhmatulina, Introduction to the Theory of Functional Differential Equations. Methods and Applications, Hindawi, New York, 2007.</mixed-citation><mixed-citation xml:lang="en">N.V. Azbelev, V.P. Maksimov, L.F. Rakhmatulina, Introduction to the Theory of Functional Differential Equations. Methods and Applications, Hindawi, New York, 2007.</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>
