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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">51536</article-id><article-id pub-id-type="doi">10.22363/2413-3639-2026-72-1-94-101</article-id><article-id pub-id-type="edn">TYWNVT</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">Monodromy representations of Jordan-Pochhammer systems</article-title><trans-title-group xml:lang="ru"><trans-title>Представления монодромии систем Жордана-Похгаммера</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="scopus">6507298133</contrib-id><contrib-id contrib-id-type="spin">2131-5008</contrib-id><name-alternatives><name xml:lang="en"><surname>Leksin</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_vp@mail.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="2026-07-14" publication-format="electronic"><day>14</day><month>07</month><year>2026</year></pub-date><volume>72</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>94</fpage><lpage>101</lpage><history><date date-type="received" iso-8601-date="2026-07-29"><day>29</day><month>07</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2026, Leksin V.P.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2026, Лексин В.П.</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="en">Leksin V.P.</copyright-holder><copyright-holder xml:lang="ru">Лексин В.П.</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/51536">https://journals.rudn.ru/CMFD/article/view/51536</self-uri><abstract xml:lang="en"><p>In this paper, we consider Burau representations of braid groups and Gassner representations of pure braid groups, and their realization as monodromy representations of Jordan-Pochhammer systems with suitable parameters. Jordan-Pochhammer systems are Fuchs-type systems, which demonstrates the solvability of the Riemann-Hilbert problem for Burau and Gassner representations. We consider an extension of this statement to generalized braid groups and their representations.</p></abstract><trans-abstract xml:lang="ru"><p>В работе рассматриваются представления Бурау групп кос и представления Гасснер групп крашеных кос и их реализация в виде представлений монодромии систем Жордана-Похгаммера с подходящими параметрами. Системы Жордана-Похгаммера являются системами типа Фукса, это показывает разрешимость проблемы Римана-Гильберта для представлений Бурау и Гасснер. Рассматривается распространение этого утверждения на обобщенные группы кос и их представления.</p></trans-abstract><kwd-group xml:lang="en"><kwd>Jordan--Pochhammer system</kwd><kwd>Burau representation</kwd><kwd>Gassner representation</kwd><kwd>monodromy representation</kwd><kwd>Riemann--Hilbert problem</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>система Жордана---Похгаммера</kwd><kwd>представление Бурау</kwd><kwd>представление Гасснер</kwd><kwd>представление монодромии</kwd><kwd>проблема Римана---Гильберта</kwd></kwd-group><funding-group/></article-meta><fn-group/></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Болибрух А.А. Проблема Римана-Гильберта // Усп. мат. наук.-1990.- 45.-С. 3-47.-DOI: 10.1070/RM1990v045n02ABEH002350.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Уиттекер Э.Т., Ватсон Дж.Н. Курс современного анализа.- М.: Физматлит, 1962.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Чередник И. 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