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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">caht</journal-id><journal-title-group><journal-title xml:lang="ru">Научный вестник МГТУ ГА</journal-title><trans-title-group xml:lang="en"><trans-title>Civil Aviation High Technologies</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2079-0619</issn><issn pub-type="epub">2542-0119</issn><publisher><publisher-name>Moscow State Technical University of Civil Aviation (MSTU CA)</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">caht-861</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>Статьи</subject></subj-group></article-categories><title-group><article-title>О ГРУППЕ ДИФФЕОМОРФИЗМОВ, СОХРАНЯЮЩИХ ОБЪЕМ ШАРА И НЕПОДВИЖНЫХ НА СФЕРЕ</article-title><trans-title-group xml:lang="en"><trans-title>ON THE GROUP OF DIFFEOMORPHISMS WHICH PRESERVE THE BALL VOLUME AND ARE IDENTIcal ON SPHERE</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>Лукацкий</surname><given-names>А. М.</given-names></name><name name-style="western" xml:lang="en"><surname>Lukatsky</surname><given-names>A. M.</given-names></name></name-alternatives><bio xml:lang="ru"><p>ведущий научный сотрудник ИНЭИ РАН, д.ф.-м.н.</p></bio><email xlink:type="simple">lukatskii.a.m.math@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>ИНЭИ РАН</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2016</year></pub-date><pub-date pub-type="epub"><day>27</day><month>12</month><year>2016</year></pub-date><volume>0</volume><issue>224</issue><fpage>126</fpage><lpage>131</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лукацкий А.М., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">Лукацкий А.М.</copyright-holder><copyright-holder xml:lang="en">Lukatsky A.M.</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://avia.mstuca.ru/jour/article/view/861">https://avia.mstuca.ru/jour/article/view/861</self-uri><abstract><p>Предлагается конструкция построения диффеоморфизмов, сохраняющих элемент объема шара и неподвижных на сфере. Исследуется поведение решений уравнений гидродинамики несжимаемой жидкости в шаре c начальными условиями - нулевыми на сфере.</p></abstract><trans-abstract xml:lang="en"><p>A construction of building of diffeomorphisms which preserve the ball volume and are identity on boundary has proposed. A behavior of hydrodynamics incompressible fluid solutions with initial condition being null on the boundary is investigated.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>диффеоморфизм</kwd><kwd>шар</kwd><kwd>сфера</kwd><kwd>бездивергентное векторное поле</kwd><kwd>несжимаемая жидкость</kwd><kwd>уравнения Эйлера</kwd><kwd>уравнения Навье - Стокса</kwd></kwd-group><kwd-group xml:lang="en"><kwd>diffeomorphism</kwd><kwd>ball</kwd><kwd>sphere</kwd><kwd>divergence-free vector field</kwd><kwd>incompressible fluid</kwd><kwd>Euler equations</kwd><kwd>Navier-Stokes equations</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">Арнольд В.И., Хесин Б.А. Топологические методы в гидродинамике. - М.: МЦНМО, 2007. - 392 с.</mixed-citation><mixed-citation xml:lang="en">Arnold V.I., Hesin B.A. Topological methods in gydrodynamics. 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