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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">vestifm</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-математических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-2430</issn><issn pub-type="epub">2524-2415</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-2430-2021-57-3-311-318</article-id><article-id custom-type="elpub" pub-id-type="custom">vestifm-599</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>Компактные разностные схемы для уравнений конвекции-диффузии</article-title><trans-title-group xml:lang="en"><trans-title>Compact diﬀerence schemes for convection-diﬀusion 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>Утебаев</surname><given-names>Б. Д.</given-names></name><name name-style="western" xml:lang="en"><surname>Utebaev</surname><given-names>B. D.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Утебаев Бахадыр Даулетбай улы – аспирант</p><p>ул. Сурганова, 11, 220072, г. Минск</p></bio><bio xml:lang="en"><p>Utebaev Bakhadir Dauletbay uli – Postgraduate Student</p><p>11, Surganov Str., 220072, Minsk</p></bio><email xlink:type="simple">bakhadir1992@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики Национальной академии наук Беларуси</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>2021</year></pub-date><pub-date pub-type="epub"><day>07</day><month>10</month><year>2021</year></pub-date><volume>57</volume><issue>3</issue><fpage>311</fpage><lpage>318</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Утебаев Б.Д., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Утебаев Б.Д.</copyright-holder><copyright-holder xml:lang="en">Utebaev B.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://vestifm.belnauka.by/jour/article/view/599">https://vestifm.belnauka.by/jour/article/view/599</self-uri><abstract><p>Настоящая работа посвящена построению компактных разностных схем для уравнений конве ции-диффузии с дивергентными и недивергентными конвективными слагаемыми. Доказывается устойчивость и сходимость в сеточных нормах. Полученные результаты обобщаются на многомерные уравнения конвекции-диффузии. Приведенные в работе тестовые численные расчеты согласуются с теоретическими выводами.</p></abstract><trans-abstract xml:lang="en"><p>This work is devoted to the construction of compact diﬀerence schemes for convection-diﬀusion equations with divergent and nondivergent convective terms. Stability and convergence in the discrete norms are proved. The obtained results are generalized to multidimensional convection-diﬀusion equations. The test numerical calculations presented in the work are consistent with the theoretical conclusions.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>компактные разностные схемы</kwd><kwd>экспоненциальные схемы</kwd><kwd>уравнение конвекции-диффузии</kwd></kwd-group><kwd-group xml:lang="en"><kwd>compact diﬀerence schemes</kwd><kwd>exponential schemes</kwd><kwd>convection-diﬀusion equation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Автор выражает благодарность профессору П. П. Матусу за помощь, оказанную в данной работе.</funding-statement><funding-statement xml:lang="en">The author is very grateful to Professor P. P. Matus for help in this work.</funding-statement></funding-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. А. Схемы повышенного порядка точности для многомерного уравнения теплопроводности / А. А. 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