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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">RUDN Journal of Engineering Research</journal-id><journal-title-group><journal-title xml:lang="en">RUDN Journal of Engineering Research</journal-title><trans-title-group xml:lang="ru"><trans-title>Вестник Российского университета дружбы народов. Серия: Инженерные исследования</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2312-8143</issn><issn publication-format="electronic">2312-8151</issn><publisher><publisher-name xml:lang="en">Peoples’ Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">4914</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Elements of fuzzy variations calculus</article-title><trans-title-group xml:lang="ru"><trans-title>Элементы нечеткого вариационного исчисления</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Asmolova</surname><given-names>J E</given-names></name><name xml:lang="ru"><surname>Асмолова</surname><given-names>Юлия Евгеньевна</given-names></name></name-alternatives><bio xml:lang="en">Кафедра систем автоматического управления; МГТУ им. Н.Э. Баумана; Moscow State Technical University after N.E. Bauman</bio><bio xml:lang="ru">Кафедра систем автоматического управления; МГТУ им. Н.Э. Баумана</bio><email>-</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Mochalov</surname><given-names>I A</given-names></name><name xml:lang="ru"><surname>Мочалов</surname><given-names>Иван Александрович</given-names></name></name-alternatives><bio xml:lang="en">Кафедра систем автоматического управления; МГТУ им. Н.Э. Баумана; Moscow State Technical University after N.E. Bauman</bio><bio xml:lang="ru">Кафедра систем автоматического управления; МГТУ им. Н.Э. Баумана</bio><email>ktk_rudn@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow State Technical University after N.E. Bauman</institution></aff><aff><institution xml:lang="ru">МГТУ им. Н.Э. Баумана</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2010-04-15" publication-format="electronic"><day>15</day><month>04</month><year>2010</year></pub-date><issue>4</issue><issue-title xml:lang="en">NO4 (2010)</issue-title><issue-title xml:lang="ru">№4 (2010)</issue-title><fpage>37</fpage><lpage>44</lpage><history><date date-type="received" iso-8601-date="2016-09-07"><day>07</day><month>09</month><year>2016</year></date></history><permissions><copyright-statement xml:lang="ru">Copyright ©; 2010, Асмолова Ю.Е., Мочалов И.А.</copyright-statement><copyright-year>2010</copyright-year><copyright-holder xml:lang="ru">Асмолова Ю.Е., Мочалов И.А.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/engineering-researches/article/view/4914">https://journals.rudn.ru/engineering-researches/article/view/4914</self-uri><abstract xml:lang="en">The fuzzy numbers, functions, functionals are considered. The fuzzy variational problem for fuzzy functionals with fixed boundaries is defined. An example of solution of Euler equation is given.</abstract><trans-abstract xml:lang="ru">Рассматриваются нечеткие числа, функции, функционалы. Для нечетких функционалов формулируется нечеткая вариационная задача с неподвижными границами. Приводится пример.</trans-abstract><kwd-group xml:lang="en"><kwd>fuzzy computation</kwd><kwd>calculus of variations</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>нечеткие вычисления</kwd><kwd>вариационное исчисление</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Roy Goetschel Jr. and William Voxman. Elementary fuzzy calculs. Fuzzy sets and systems, 18 (1986), 31-43.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Osmo Kaleva. The cauchy problem for fuzzy differential equations. 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