<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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 pub-id-type="doi">10.29235/1561-8323-2020-64-4-391-398</article-id><article-id custom-type="elpub" pub-id-type="custom">dan-894</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 повышенного порядка точности для параболических уравнений</article-title><trans-title-group xml:lang="en"><trans-title>Monotone difference schemes of higher accuracy for 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>Матус</surname><given-names>П. П.</given-names></name><name name-style="western" xml:lang="en"><surname>Matus</surname><given-names>P. P.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Матус Петр Павлович - член-корреспондент, доктор физико-математических наук, профессор, главный научный сотрудник, Институт математики НАН Беларуси.</p><p>ул. Сурганова, 11, 220072, Минск.</p></bio><bio xml:lang="en"><p>Matus Piotr P. - Corresponding Member, D. Sc. (Physics and Mathematics), Professor, Chief researcher. Institute of Mathematics of the National Academy of Sciences of Belarus.</p><p>11, Surganov Str., 220072, Minsk.</p></bio><email xlink:type="simple">piotr.p.matus@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>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, Институт математики НАН Беларуси.</p><p>ул. Сурганова, 11, 220072, Минск.</p></bio><bio xml:lang="en"><p>Utebaev Bakhadir D. - Postgraduate student. Institute of Mathematics of the National Academy of Sciences of Belarus.</p><p>11, Surganov Str., 220072, Minsk.</p></bio><email xlink:type="simple">bakhad-ir1992@gmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт математики Национальной академии наук Беларуси; Католический университет Люблина</institution></aff><aff xml:lang="en"><institution>Institute of Mathematics of the National Academy of Sciences of Belarus; Institute of Mathematics and Computer Science The John Paul II Catholic University of Lublin</institution></aff></aff-alternatives><aff-alternatives id="aff-2"><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>2020</year></pub-date><pub-date pub-type="epub"><day>29</day><month>08</month><year>2020</year></pub-date><volume>64</volume><issue>4</issue><fpage>391</fpage><lpage>398</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Матус П.П., Утебаев Б.Д., 2020</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="ru">Матус П.П., Утебаев Б.Д.</copyright-holder><copyright-holder xml:lang="en">Matus P.P., 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://doklady.belnauka.by/jour/article/view/894">https://doklady.belnauka.by/jour/article/view/894</self-uri><abstract><p>Строятся и исследуются монотонные разностные схемы для линейных неоднородных параболических уравнений, уравнения Фишера, или Колмогорова-Петровского-Пискунова. Доказывается устойчивость и сходимость предложенных методов в равномерной норме  L∞ или С. Полученные результаты обобщаются на произвольные полулинейные параболические уравнения с нелинейным стоком произвольного вида, а также на квазилинейные уравнения.</p></abstract><trans-abstract xml:lang="en"><p>In this article, monotone difference schemes for linear inhomogeneous parabolic equations, the Fisher or Kolmogorov-Petrovsky-Piskunov equations are constructed and investigated. The stability and convergence of the proposed methods in the uniform norm L∞  or С is proved. The results obtained are generalized to arbitrary semi-linear parabolic equations with an arbitrary nonlinear sink, as well as to quasi-linear equations.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>монотонная разностная схема</kwd><kwd>принцип максимума</kwd><kwd>разностные схемы повышенного порядка</kwd><kwd>компактные схемы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>monotone difference schemes</kwd><kwd>maximum principle</kwd><kwd>high-order difference schemes and compact schemes</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">Matus, P. Stability and monotonicity of difference schemes for nonlinear scalar conservation laws and multidimensional quasi-linear parabolic equations / P. Matus, S. V. Lemeshevsky // Comput. Meth. Appl. Math. - 2009. - Vol. 9, N 3. - P. 253-280. https://doi.org/10.2478/cmam-2009-0016</mixed-citation><mixed-citation xml:lang="en">Matus P. P., Lemeshevsky S. V. Stability and monotonicity of difference schemes for nonlinear scalar conservation laws and multidimensional quasi-linear parabolic equations. Computational Methods in Applied Mathematics, 2009, vol. 9, no. 3, pp. 253-280. https://doi.org/10.2478/cmam-2009-0016</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Монотонные разностные схемы для систем эллиптических и параболических уравнений / Ф. Ж. Гаспар [и др.] // Докл. Нац. акад. наук Беларуси. - 2016. - Т. 60, № 5. - С. 29-33.</mixed-citation><mixed-citation xml:lang="en">Gaspar F. G., Matus P. P., Tuyen V. T. K., Hieu L. M. Monotone difference schemes for systems of elliptic and parabolic equations. Doklady Natsional'noi akademii nauk Belarusi = Doklady of the National Academy of Sciences of Belarus, 2016, vol. 60, no. 5, pp. 29-33 (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Liao, W. A fourth-order compact finite difference scheme for solving unsteady convection-diffusion equations / W. Liao, J. Zhu // Computational Simulations and Applications. - 2011. - P. 81-96. https://doi.org/10.5772/25149</mixed-citation><mixed-citation xml:lang="en">Liao W., Zhu J. A fourth-order compact finite difference scheme for solving unsteady convection-diffusion equations. Computational Simulations and Applications. 2011, pp. 81-96. https://doi.org/10.5772/25149</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Толстых, А. И. Компактные разностные схемы и их применение в задачах аэрогидродинамики / А. И. Толстых. -М., 1990. - 230 с.</mixed-citation><mixed-citation xml:lang="en">Tolstykh A. I. Compact difference schemes and their applications to fluid dynamics problems. Moscow, 1990. 230 p. (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Самарский, А. А. Схемы повышенного порядка точности для многомерного уравнения теплопроводности / А. А. Самарский // Журн. вычисл. матем. и матем. физики. - 1963. - Т. 3, № 5. - С. 812-840.</mixed-citation><mixed-citation xml:lang="en">Samarskii A. A. Schemes of high-order accuracy for the multi-dimensional heat conduction equation. USSR Computational Mathematics and Mathematical Physics, 1963, vol. 3, no. 5, pp. 1107-1146. https://doi.org/10.1016/0041-5553(63)90104-6</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Matus, P. Stability of difference schemes for nonlinear time-dependent problems / P. Matus // Comput. Meth. Appl. Math. -2003. - Vol. 3, N 2. - P. 313-329. https://doi.org/10.2478/cmam-2003-0020</mixed-citation><mixed-citation xml:lang="en">Matus P. Stability of difference schemes for nonlinear time-dependent problems. Computational Methods in Applied Mathematics, 2003, vol. 3, no. 2. pp. 313-329. https://doi.org/10.2478/cmam-2003-0020</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Godlewski, E. Hyperbolic systems of conservation laws / E. Godlewski, P.-A. Raviart. - Ellipses, 1991. - 254 p.</mixed-citation><mixed-citation xml:lang="en">Godlewski E., Raviart P.-A. Hyperbolic systems of conservation laws. Ellipses, 1991. 254 p.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Matus, P. The maximum principle and some of its applications / P. Matus // Comput. Meth. Appl. Math. - 2002. - Vol. 2, N 1. - P. 50-91. https://doi.org/10.2478/cmam-2002-0004</mixed-citation><mixed-citation xml:lang="en">Matus P. The maximum principle and some of its applications. Computational Methods in Applied Mathematics, 2002, vol. 2, no. 1, pp. 50-91. https://doi.org/10.2478/cmam-2002-0004</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Samarskii, A. A. Difference Schemes with Operator Factors / А. А. Samarskii, P. N. Vabishchevich, P. P. Matus. - London, 2002. https://doi.org/10.1007/978-94-015-9874-3</mixed-citation><mixed-citation xml:lang="en">Samarskii A. A., Matus P. P., Vabishchevich P. N. Difference Schemes with Operator Factors. London, 2002. https://doi.org/10.1007/978-94-015-9874-3</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Samarskii, A. A. The Theory of Difference Schemes / A. A. Samarskii. - New York, 2001. - 786 p. https://doi.org/10.1201/9780203908518</mixed-citation><mixed-citation xml:lang="en">Samarskii A. A. The Theory of Difference Schemes. New York, 2001. 786 p. https://doi.org/10.1201/9780203908518</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Matus, P. P. Analysis of second order difference schemes on non-uniform grids for quasilinear parabolic equations / P. P. Matus, L. M. Hieu, L. G. Vulkov // Journal of Computational and Applied Mathematics. - 2017. - Vol. 310. - P. 186-199. https://doi.org/10.1016/j.cam.2016.04.006</mixed-citation><mixed-citation xml:lang="en">Matus P. P., Hieu L. M., Vulkov L. G. Analysis of second order difference schemes on non-uniform grids for quasilinear parabolic equations. Journal of Computational and Applied Mathematics, 2017, vol. 310, pp. 186-199. https://doi.org/10.1016/j.cam.2016.04.006</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
