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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-348</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>МОНОТОННЫЕ РАЗНОСТНЫЕ СХЕМЫ ДЛЯ СИСТЕМ ЭЛЛИПТИЧЕСКИХ И ПАРАБОЛИЧЕСКИХ УРАВНЕНИЙ</article-title><trans-title-group xml:lang="en"><trans-title>MONOTONE DIFFERENCE SCHEMES FOR SYSTEMS OF ELLIPTIC AND PARABOLIC EQUATIONS</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>ГАСПАР</surname><given-names>Ф. Ж.</given-names></name><name name-style="western" xml:lang="en"><surname>GASPAR</surname><given-names>FRANCISCO</given-names></name></name-alternatives><email xlink:type="simple">paco1111@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>МАТУС</surname><given-names>П. П.</given-names></name><name name-style="western" xml:lang="en"><surname>MATUS</surname><given-names>PIOTR</given-names></name></name-alternatives><email xlink:type="simple">matus@im.bas-net.by</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ТУЕН</surname><given-names>В. Т. К.</given-names></name><name name-style="western" xml:lang="en"><surname>TUYEN</surname><given-names>VO THI KIM</given-names></name></name-alternatives><email xlink:type="simple">Vokimtuyen188@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>ХИЕУ</surname><given-names>Л. М.</given-names></name><name name-style="western" xml:lang="en"><surname>HIEU</surname><given-names>LE MINH</given-names></name></name-alternatives><email xlink:type="simple">lmhieuktdn@gmail.com</email><xref ref-type="aff" rid="aff-3"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Университет Сарагосы</institution></aff><aff xml:lang="en"><institution>University of Saragosa</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Институт математики НАН Беларуси; Католический университет Люблина, Польша</institution></aff><aff xml:lang="en"><institution>Institute of Mathematics of the National Academy of Sciences of Belarus; Catholic University of Lublin, Poland</institution></aff></aff-alternatives><aff-alternatives id="aff-3"><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>2016</year></pub-date><pub-date pub-type="epub"><day>01</day><month>11</month><year>2016</year></pub-date><volume>60</volume><issue>5</issue><fpage>29</fpage><lpage>33</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; ГАСПАР Ф.Ж., МАТУС П.П., ТУЕН В.Т., ХИЕУ Л.М., 2016</copyright-statement><copyright-year>2016</copyright-year><copyright-holder xml:lang="ru">ГАСПАР Ф.Ж., МАТУС П.П., ТУЕН В.Т., ХИЕУ Л.М.</copyright-holder><copyright-holder xml:lang="en">GASPAR F., MATUS P., TUYEN V.T., HIEU L.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://doklady.belnauka.by/jour/article/view/348">https://doklady.belnauka.by/jour/article/view/348</self-uri><abstract><p>В настоящей работе для канонической формы векторно-разностных схем общего вида при условиях положительности матричных коэффициентов получены двусторонние оценки сеточного решения при произвольных незнакопостоянных входных данных задачи. Полученные результаты применяются для получения двусторонних оценок и априорных оценок в норме С конкретных монотонных векторно-разностных схем, аппроксимирующих слабо связанные системы эллиптических и параболических уравнений с граничными условиями Дирихле.</p></abstract><trans-abstract xml:lang="en"><p>In this article, for the canonical form of vector-difference schemes under the positivity conditions of matrix coefficients the two-sided estimates for an approximate solution at the arbitrary non sign- constant input data of the problem are obtained. The obtained results are used for deriving two-swided estimates and a priori estimates in the norm C of monotone vector-difference schemes that approximate the weakly coupled systems of elliptic and parabolic equations with the Dirichlet foundary conditions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>принцип максимума</kwd><kwd>двусторонняя оценка</kwd><kwd>монотонная разностная схема</kwd><kwd>слабо связанная система</kwd></kwd-group><kwd-group xml:lang="en"><kwd>maximum principle</kwd><kwd>two-sided estimate</kwd><kwd>monotone difference scheme</kwd><kwd>weakly coupled system</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">Самарский, А. 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