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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">30855</article-id><article-id pub-id-type="doi">10.22363/2413-3639-2022-68-1-110-126</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">Applications of Quadratic Stochastic Operators to Nonlinear Consensus Problems</article-title><trans-title-group xml:lang="ru"><trans-title>Приложения квадратичных стохастических операторов к нелинейным проблемам консенсуса</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Saburov</surname><given-names>M.</given-names></name><name xml:lang="ru"><surname>Сабуров</surname><given-names>М.</given-names></name></name-alternatives><email>msaburov@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Saburov</surname><given-names>Kh.</given-names></name><name xml:lang="ru"><surname>Сабуров</surname><given-names>Х.</given-names></name></name-alternatives><email>khikmatdr@gmail.com</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">American University of the Middle East</institution></aff><aff><institution xml:lang="ru">Американский университет Ближнего востока</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">National University of Uzbekistan</institution></aff><aff><institution xml:lang="ru">Национальный университет Узбекистана им. М. Улугбека</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2022-04-20" publication-format="electronic"><day>20</day><month>04</month><year>2022</year></pub-date><volume>68</volume><issue>1</issue><issue-title xml:lang="en">Science — Technology — Education — Mathematics — Medicine</issue-title><issue-title xml:lang="ru">Наука — технология — образование — математика — медицина</issue-title><fpage>110</fpage><lpage>126</lpage><history><date date-type="received" iso-8601-date="2022-04-20"><day>20</day><month>04</month><year>2022</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2022, Contemporary Mathematics. Fundamental Directions</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2022, Современная математика. Фундаментальные направления</copyright-statement><copyright-year>2022</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/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">https://creativecommons.org/licenses/by-nc-nd/4.0/deed.en</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/CMFD/article/view/30855">https://journals.rudn.ru/CMFD/article/view/30855</self-uri><abstract xml:lang="en"><p style="text-align: justify;">Historically, the idea of reaching consensus through repeated averaging was introduced by De Groot for a structured time-invariant and synchronous environment. Since that time, the consensus, which is the most ubiquitous phenomenon of multi-agent systems, becomes popular in the various scientific fields such as biology, physics, control engineering and social science. In this paper, we give an overview of the recent development of applications of quadratic stochastic operators to nonlinear consensus problems. We also present some refinement and improvement of the previous results.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Исторически идея достижения консенсуса путем повторных усреднений была предложена Де Грутом для структурированной синхронной среды, инвариантной по времени. С того времени консенсус, будучи наиболее общим феноменом многоагентных систем, становится популярным в разнообразных научных областях, таких как биология, физика, инженерия управления и социальные науки. В данной работе мы даем обзор недавнего развития приложения квадратичных стохастических операторов к нелинейным задачам консенсуса. 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