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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">34594</article-id><article-id pub-id-type="doi">10.22363/2413-3639-2022-69-1-62-72</article-id><article-id pub-id-type="edn">ESEMSD</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</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">Absence of positive solutions of some nonlinear inequalities with transformations of the argument in a half-space</article-title><trans-title-group xml:lang="ru"><trans-title>Отсутствие положительных решений некоторых нелинейных неравенств с преобразованиями аргумента в полупространстве</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Galakhov</surname><given-names>E. I.</given-names></name><name xml:lang="ru"><surname>Галахов</surname><given-names>Е. И.</given-names></name></name-alternatives><email>egalakhov@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Salieva</surname><given-names>O. A.</given-names></name><name xml:lang="ru"><surname>Салиева</surname><given-names>О. А.</given-names></name></name-alternatives><email>olga.a.salieva@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">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 State Technological University “Stankin”</institution></aff><aff><institution xml:lang="ru">Московский государственный технологический университет «Станкин»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-03-31" publication-format="electronic"><day>31</day><month>03</month><year>2023</year></pub-date><volume>69</volume><issue>1</issue><issue-title xml:lang="en">Differential and Functional Differential Equations</issue-title><issue-title xml:lang="ru">Дифференциальные и функционально-дифференциальные уравнения</issue-title><fpage>62</fpage><lpage>72</lpage><history><date date-type="received" iso-8601-date="2023-05-05"><day>05</day><month>05</month><year>2023</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Galakhov E.I., Salieva O.A.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Галахов Е.И., Салиева О.А.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Galakhov E.I., Salieva O.A.</copyright-holder><copyright-holder xml:lang="ru">Галахов Е.И., Салиева О.А.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/CMFD/article/view/34594">https://journals.rudn.ru/CMFD/article/view/34594</self-uri><abstract xml:lang="en"><p style="text-align: justify;">We prove the absence of positive solutions for some semilinear elliptic partial differential inequalities with transformations of the argument in a half-space. The proofs are based on the test functions method.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Мы доказываем отсутствие положительных решений для некоторых полулинейных эллиптических неравенств в частных производных с преобразованиями аргумента в полупространстве. Доказательства основаны на методе пробных функций.</p></trans-abstract><kwd-group xml:lang="en"><kwd>nonlinear elliptic inequalities</kwd><kwd>transformations of arguments</kwd><kwd>absence of solutions</kwd><kwd>positive solutions</kwd><kwd>monotonic solutions</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>нелинейные эллиптические неравенства</kwd><kwd>преобразования аргумента</kwd><kwd>отсутствие решений</kwd><kwd>положительные решения</kwd><kwd>монотонные решения</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья была поддержана стратегической программой академического лидерства университета РУДН.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Галахов Е. И., Салиева О. А. 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