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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="research-article" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Contemporary Mathematics. Fundamental Directions</journal-id><journal-title-group><journal-title xml:lang="en">Contemporary Mathematics. Fundamental Directions</journal-title><trans-title-group xml:lang="ru"><trans-title>Современная математика. Фундаментальные направления</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2413-3639</issn><issn publication-format="electronic">2949-0618</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">23053</article-id><article-id pub-id-type="doi">10.22363/2413-3639-2019-65-4-613-622</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>New Results</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Новые результаты</subject></subj-group><subj-group subj-group-type="article-type"><subject>Research Article</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Boundary-Value Problems for Differential-Difference Equations with Incommeasurable Shifts of Arguments Reducible to Nonlocal Problems</article-title><trans-title-group xml:lang="ru"><trans-title>Краевые задачи для дифференциально-разностных уравнений с несоизмеримыми сдвигами аргументов, сводящиеся к нелокальным задачам</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ivanova</surname><given-names>E. P.</given-names></name><name xml:lang="ru"><surname>Иванова</surname><given-names>Е. П.</given-names></name></name-alternatives><email>elpaliv@yandex.ru</email><xref ref-type="aff" rid="aff1"/><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Peoples’ Friendship University of Russia (RUDN University)</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Moscow Aviation Institute (National Research University)</institution></aff><aff><institution xml:lang="ru">Московский авиационный институт (национальный исследовательский университет)</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2019-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2019</year></pub-date><volume>65</volume><issue>4</issue><issue-title xml:lang="en">Proceedings of the S.M. Nikolskii Mathematical Institute of RUDN University</issue-title><issue-title xml:lang="ru">Труды Математического института им. С.М. Никольского РУДН</issue-title><fpage>613</fpage><lpage>622</lpage><history><date date-type="received" iso-8601-date="2020-03-02"><day>02</day><month>03</month><year>2020</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2020, Contemporary Mathematics. Fundamental Directions</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2020, Современная математика. Фундаментальные направления</copyright-statement><copyright-year>2020</copyright-year><copyright-holder xml:lang="en">Contemporary Mathematics. Fundamental Directions</copyright-holder><copyright-holder xml:lang="ru">Современная математика. Фундаментальные направления</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/></permissions><self-uri xlink:href="https://journals.rudn.ru/CMFD/article/view/23053">https://journals.rudn.ru/CMFD/article/view/23053</self-uri><abstract xml:lang="en"><p>We consider boundary-value problems for differential-difference equations containing incommeasurable shifts of arguments in higher-order terms. We prove that in the case of finite orbits of boundary points generated by the set of shifts of the difference operator, the original problem is reduced to the boundary-value problem for differential equation with nonlocal boundary conditions.</p></abstract><trans-abstract xml:lang="ru"><p>Рассматриваются краевые задачи для дифференциально-разностных уравнений, содержащие несоизмеримые сдвиги аргументов в старших членах. Показано, что для случая, когда орбиты точек границы области, сгенерированные множеством сдвигов разностного оператора, конечны, исходная задача может быть сведена к краевой задаче для дифференциального уравнения с нелокальными краевыми условиями.</p></trans-abstract><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке РФФИ (грант № 17-01-00401).</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Скубачевский А.Л. Краевые задачи для эллиптических дифференциально-разностных уравнений и их приложения// Усп. мат. наук. - 2016. -32, № 2. - С. 261-278.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Ivanova E.P. On coercivity of differential-difference equations with incommensurable translations of arguments// J. Math. Sci. (N. Y.). - 2019. -239, № 6. - С. 802-816.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Ivanova E.P. On smooth solutions of differential-Difference equations with incommensurable shifts of arguments// Math. Notes. - 2019. -105, № 1. - С. 140-144.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Skubachevskii A.L. Elliptic functional differential equations and aplications. - Basel-Boston-Berlin: Birkhauser, 1997.</mixed-citation></ref></ref-list></back></article>
