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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">22263</article-id><article-id pub-id-type="doi">10.22363/2413-3639-2018-64-1-86-97</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">Schlesinger’s Equations for Upper Triangular Matrices and Their Solutions</article-title><trans-title-group xml:lang="ru"><trans-title>Уравнения Шлезингера для верхнетреугольных матриц и их решения</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Lexin</surname><given-names>V P</given-names></name><name xml:lang="ru"><surname>Лексин</surname><given-names>В П</given-names></name></name-alternatives><email>lexin_vpmail.ru</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">State Socio-Humanitarian University</institution></aff><aff><institution xml:lang="ru">Государственный социально-гуманитарный университет</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2018-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2018</year></pub-date><volume>64</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>86</fpage><lpage>97</lpage><history><date date-type="received" iso-8601-date="2019-11-29"><day>29</day><month>11</month><year>2019</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2019, Contemporary Mathematics. Fundamental Directions</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2019, Современная математика. Фундаментальные направления</copyright-statement><copyright-year>2019</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/22263">https://journals.rudn.ru/CMFD/article/view/22263</self-uri><abstract xml:lang="en">We consider explicit integral expressions of hypergeometric and hyperelliptic types for solutions of Schlesinger’s equations in classes of upper triangular matrices with eigenvalues that produce arithmetic progressions with the same diﬀerence. These integral representations extend and generalize earlier known results.</abstract><trans-abstract xml:lang="ru">В настоящей работе рассмотрены явные интегральные выражения гипергеометрического и гиперэллиптического типа для решений уравнений Шлезингера в классах верхнетреугольных матриц с собственными числами, образующими арифметические прогрессии с одинаковой разностью. Полученные интегральные представления дополняют и обобщают ранее известные результаты.</trans-abstract></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Болибрух А. А. Обратные задачи монодромии в аналитической теории дифференциальных уравнений. - М.: МЦНМО, 2009.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Уиттекер Э. Т., Ватсон Дж. Н. Курс современного анализа. - М.: Физматлит, 1963.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Aomoto K. On the structure of integrals of power product of linear functions// Sci. 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