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<article article-type="research-article" dtd-version="1.3" 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" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2023-24-5-307-319</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1640</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>История математики и приложений</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Сomputer science</subject></subj-group></article-categories><title-group><article-title>Из истории одной неопубликованной статьи М. И. Кадеца</article-title><trans-title-group xml:lang="en"><trans-title>From history of one unpublished paper of M. I. Kadets</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Манохин</surname><given-names>Евгений Викторович</given-names></name><name name-style="western" xml:lang="en"><surname>Manokhin</surname><given-names>Evgeny Viktorovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>candidate of physical and mathematical sciences</p></bio><email xlink:type="simple">emanfinun@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Жуков</surname><given-names>Роман Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Zhukov</surname><given-names>Roman Aleksandrovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор экономических наук, кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>doctor of economic sciences, candidate of physical and mathematical sciences</p></bio><email xlink:type="simple">pluszh@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бормотов</surname><given-names>Игорь Владимирович</given-names></name><name name-style="western" xml:lang="en"><surname>Bormotov</surname><given-names>Igor Vladimirovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат философских наук</p></bio><bio xml:lang="en"><p>candidate of philosophical sciences</p></bio><email xlink:type="simple">emanfinun@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Добрынина</surname><given-names>Ирина Васильевна</given-names></name><name name-style="western" xml:lang="en"><surname>Dobrynina</surname><given-names>Irina Vasilyevna</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences</p></bio><email xlink:type="simple">ivdobrynina@rambler.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Назырова</surname><given-names>Екатерина Александровна</given-names></name><name name-style="western" xml:lang="en"><surname>Nazirova</surname><given-names>Ekaterina Aleksandrovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат исторических наук</p></bio><bio xml:lang="en"><p>candidate of historical sciences</p></bio><email xlink:type="simple">emanfinun@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Финансовый университет при Правительстве Российской Федерации (Тульский филиал)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Financial University under the Government of the Russian Federation (Tula Branch)</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Московский технический университет связи и информатики</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Moscow Technical University of Communications and Informatics</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>02</day><month>02</month><year>2024</year></pub-date><volume>24</volume><issue>5</issue><fpage>307</fpage><lpage>319</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Манохин Е.В., Жуков Р.А., Бормотов И.В., Добрынина И.В., Назырова Е.А., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Манохин Е.В., Жуков Р.А., Бормотов И.В., Добрынина И.В., Назырова Е.А.</copyright-holder><copyright-holder xml:lang="en">Manokhin E.V., Zhukov R.A., Bormotov I.V., Dobrynina I.V., Nazirova E.A.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://www.chebsbornik.ru/jour/article/view/1640">https://www.chebsbornik.ru/jour/article/view/1640</self-uri><abstract><p>Авторы статьи ставят перед собой задачу: ознакомить математическую общественность с неопубликованной статьей выдающегося советского математика М. И. Кадеца, возглавлявшего Харьковскую школу, известную своими работами в области теории банаховых пространств, рассказать историю этой статьи. Данная работа продолжает статью автора о долгом сотрудничестве и взаимодействии преподавателей и ученых Тульского государственного педагогического университета им. Л. Н. Толстого и Харьковской школы Михаила Иосифовича Кадеца.Под его руководством вел научную работу тульский студент, которые впоследствии после обучения в Харьковской школе Михаила Иосифовича Кадеца стал кандидатом физико-математических наук. Михаилом Иосифовичем Кадецем получены глубокие, содержательные научные результаты. Михаил Иосифович по праву считается одним из создателей теории эквивалентных перенормировок банаховых пространств, превратившейся в настоящее время в самостоятельную область. Харьковская школа Кадеца в то время получила мировую известность. М. И. Кадец щедро делился своими математическими идеями со своими учениками. В статье приводятся некоторые совместные результаты, полученные М. И. Кадецем и его учеником в 1988-1990 годах, которые готовились к публикации в виде совместной статьи, но тогда не были опубликованы из-за высокой требовательности, которую предьявлял к себе выдающийся советский математик М. И. Кадец, требовательности,которая может служить примером для современной молодежи, особенно для научной молодежи. Исследование выполнено за счет бюджетных средств по государственному заданиюФинуниверситета № 15841п-П8.</p></abstract><trans-abstract xml:lang="en"><p>Authors of paper put before themselves a problem: to acquaint the mathematical public with unpublished paper of the outstanding Soviet mathematician M.I.Kadets heading the Kharkov school, known for the works in the field of the theory of Banach spaces, to tell story of thispaper. The given work continues paper of the author about part cooperation and interaction of teachers and scientists of the Tula state pedagogical university of L.N.Tolstoy and Michael Iosifovich Kadetsa’s Kharkov school.Under its management the Tula student which afterwards after training at Michael Iosifovich Kadetsa’s Kharkov school became the candidate of physical and mathematical sciences conducted scientific work. Michael Iosifovich by right is considered one of founders of thetheory of equivalent renormings of the Banach spaces, turned now in independent area. The Kharkov school Kadetsa has at that time become world-famous. M.I.Kadets generously shared the mathematical ideas with the pupils. In paper some joint outcomes received by M.I.Kadetsem and its pupil in 1988-1990 which prepared for the publication in the form of joint paper but then have not been published because of high insistence which was shown to itself by outstanding Soviet mathematician M. I. Kadets, to insistence which can be an example for modern youth, especially for scientific youth are reduced. The study was carried out at the expense of budgetaryfunds according to the state assignment of the Financial University No. 15841p-P8.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>история математики</kwd><kwd>функциональный анализ</kwd><kwd>банаховы пространства</kwd><kwd>математики Тулы</kwd><kwd>математики Харьковской школы Михаила Иосифовича Кадеца.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>history of mathematics</kwd><kwd>functional analysis</kwd><kwd>Banach spaces</kwd><kwd>Tula mathematics</kwd><kwd>mathematicians of the Mikhail Iosifovich Kadets Kharkiv School</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Статья подготовлена по результатам исследования, выполненного за счет бюджетных средств по государственному заданию Финуниверситета № 15841п-П8.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Е. В Манохин, Н. О. 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