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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">dan</journal-id><journal-title-group><journal-title xml:lang="ru">Доклады Национальной академии наук Беларуси</journal-title><trans-title-group xml:lang="en"><trans-title>Doklady of the National Academy of Sciences of Belarus</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-8323</issn><issn pub-type="epub">2524-2431</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">dan-365</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>МАТЕМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICS</subject></subj-group></article-categories><title-group><article-title>ПРИБЛИЖЕННЫЕ ФОРМУЛЫ ДЛЯ ВЫЧИСЛЕНИЯ МАТЕМАТИЧЕСКОГО ОЖИДАНИЯ ФУНКЦИОНАЛОВ ОТ РЕШЕНИЯ УРАВНЕНИЯ ИТО В ГИЛЬБЕРТОВОМ ПРОСТРАНСТВЕ</article-title><trans-title-group xml:lang="en"><trans-title>APPROXIMATE FORMULAS FOR CALCULATING THE MATHEMATICAL EXPECTATION OF FUNCTIONALS OF SOLUTION OF THE ITO EQUATIONS IN A HILBERT SPACE</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>Егоров</surname><given-names>А. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Egorov</surname><given-names>A. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р физ.-мат. наук, профессор, гл. науч. сотрудник</p></bio><bio xml:lang="en"><p>D. Sc. (Physics and Mathematics), Professor, Chief researcher</p></bio><email xlink:type="simple">egorov@im.bas-net.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики НАН Беларуси, Минск, Республика Беларусь</institution></aff><aff xml:lang="en"><institution>Institute of Mathematics of the National Academy of Sciences of Belarus</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>06</day><month>01</month><year>2017</year></pub-date><volume>60</volume><issue>6</issue><fpage>7</fpage><lpage>13</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Егоров А.Д., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Егоров А.Д.</copyright-holder><copyright-holder xml:lang="en">Egorov A.D.</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://doklady.belnauka.by/jour/article/view/365">https://doklady.belnauka.by/jour/article/view/365</self-uri><abstract><p>Получены приближенные формулы для вычисления математического ожидания функционалов от решений стохастических линейных уравнений Ито в гильбертовом пространстве. Подход основан на использовании функциональных квадратурных  формул.</p></abstract><trans-abstract xml:lang="en"><p>Approximate formulas for evaluation of mathematical expectation of functionals of solution of the linear stochastic Ito equations in the Hilbert space are obtained. The approach is based on using the functional quadrature formulas.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>стохастические уравнения в гильбертовом пространстве</kwd><kwd>математические ожидания от решений</kwd><kwd>приближенные формулы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>stochastic differential equations in Hilbert spaces</kwd><kwd>mathematical expectations from solutions</kwd><kwd>approximate forformulas</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">Далецкий, Ю. Л. Меры и дифференциальные уравнения в бесконечномерных пространствах / Ю. Л. 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