<?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">mathnas</journal-id><journal-title-group><journal-title xml:lang="ru">Труды Института математики НАН Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the Institute of Mathematics of the NAS of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1812-5093</issn><publisher><publisher-name>Институт математики НАН Беларуси</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">mathnas-71</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>ВЫЧИСЛИТЕЛЬНАЯ МАТЕМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>COMPUTATIONAL MATHEMATICS</subject></subj-group></article-categories><title-group><article-title>Приближенная формула для математических ожиданий от решения стохастического дифференциального уравнения с дрейфом</article-title><trans-title-group xml:lang="en"><trans-title>Approximate formula for mathematical expectations of a solution of a stochastic differential equation with drift</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>Жерело</surname><given-names>А. В.</given-names></name><name name-style="western" xml:lang="en"><surname>Zherelo</surname><given-names>A. V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Минск</p></bio><bio xml:lang="en"><p>Минск</p></bio><email xlink:type="simple">zherelo@bsu.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский государственный университет</institution></aff><aff xml:lang="en"><institution>Belarusian State University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2025</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2025</year></pub-date><volume>33</volume><issue>1</issue><fpage>87</fpage><lpage>94</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Жерело А.В., 2025</copyright-statement><copyright-year>2025</copyright-year><copyright-holder xml:lang="ru">Жерело А.В.</copyright-holder><copyright-holder xml:lang="en">Zherelo A.V.</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://mathnas.ejournal.by/jour/article/view/71">https://mathnas.ejournal.by/jour/article/view/71</self-uri><abstract><p>В работе рассмотрен случай стохастического дифференциального уравнения в смысле Ито с дрейфом. Для рассматриваемого уравнения построена формула приближенного вычисления математических ожиданий от его решения. Для построенной формулы получена оценка погрешности. Проведен численный эксперимент.</p></abstract><trans-abstract xml:lang="en"><p>The paper considers the case of a stochastic differential equation in the sense of Ito with drift. For the equation under consideration, a formula for the approximate calculation of mathematical expectations from its solution is constructed. An estimate of the error of the constructed formula is obtained. A numerical experiment is performed.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>случайный процесс</kwd><kwd>стохастическое дифференциальное уравнение</kwd><kwd>интеграл Ито</kwd><kwd>математическое ожидание</kwd><kwd>приближенные вычисления</kwd><kwd>слабые аппроксимации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>random process</kwd><kwd>stochastic differential equation</kwd><kwd>Ito integral</kwd><kwd>mathematical expectation</kwd><kwd>approximate calculations</kwd><kwd>weak 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">Гихман И. И., Скороход А. В. Теория случайных процессов. М.: Наука, 1975. Т. 3.</mixed-citation><mixed-citation xml:lang="en">Gihman I. I., Skorokhod A. V. Theory of random processes. Vol. 3. Moscow, Nauka, 1975 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Øksendal B. Stochastic Differential Equations: An Introduction with Applications. Springer, 2003.</mixed-citation><mixed-citation xml:lang="en">Øksendal B. Stochastic Differential Equations: An Introduction with Applications. Springer, 2003.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Applebaum D. Levy processes and stochastic calculus. Cambridge University Press, 2009.</mixed-citation><mixed-citation xml:lang="en">Applebaum D. Levy processes and stochastic calculus. Cambridge University Press, 2009.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Kloeden P. E., Platen E. Numerical solution of stochastic differential equations. Springer, 1999.</mixed-citation><mixed-citation xml:lang="en">Kloeden P. E., Platen E. Numerical solution of stochastic differential equations. Springer, 1999.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Egorov A. D., Sobolevsky P. I., Yanovich L. A. Functiona Integrals; Approximate Evaluation and Applications. Dordreht: Kluwer Acad. Publ., 1993.</mixed-citation><mixed-citation xml:lang="en">Egorov A. D., Sobolevsky P. I., Yanovich L. A. Functiona Integrals; Approximate Evaluation and Applications. Dordreht, Kluwer Acad. Publ., 1993.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Egorov A., Zherelo A. Approximation of functional integrals with respect to measure generated by solutions of stochastic differential equations // Monte Carlo Methods Appl. 2004. Vol. 10. P. 257–264.</mixed-citation><mixed-citation xml:lang="en">Egorov A., Zherelo A. Approximation of functional integrals with respect to measure generated by solutions of stochastic differential equations. Monte Carlo Methods Appl., 2004, vol. 10. pp. 257–264.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Егоров А. Д., Жидков Е. П., Лобанов Ю. Ю. Введение в теорию и приложения функциональных интегралов. М.: Физматлит, 2006.</mixed-citation><mixed-citation xml:lang="en">Egorov A. D., Zhidkov E. P., Lobanov Yu. Yu. Introduction in a theory and applications of functional integlas. Moscow, Phismatlit, 2006 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Мильштейн Г. Н. Приближенное интегрирование стохастических дифференциальных уравнений // Теория вероятностей и ее применения. 1974. Т. 19, № 3. С. 583–588.</mixed-citation><mixed-citation xml:lang="en">Milshtein G. N. Approximate integration of stochastic differential equations. Theory of Probability &amp; Its Applications, 1974, vol. 19, no 3. pp. 583–588.</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>
