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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">vestifm</journal-id><journal-title-group><journal-title xml:lang="ru">Известия Национальной академии наук Беларуси. Серия физико-математических наук</journal-title><trans-title-group xml:lang="en"><trans-title>Proceedings of the National Academy of Sciences of Belarus. Physics and Mathematics Series</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1561-2430</issn><issn pub-type="epub">2524-2415</issn><publisher><publisher-name>The Republican Unitary Enterprise Publishing House "Belaruskaya Navuka"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.29235/1561-2430-2024-60-3-203-215</article-id><article-id custom-type="elpub" pub-id-type="custom">vestifm-795</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>МАТЕМАТИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MATHEMATICS</subject></subj-group></article-categories><title-group><article-title>О точном восстановлении решения линейных вполне регулярных дифференциально-алгебраических систем с запаздыванием</article-title><trans-title-group xml:lang="en"><trans-title>About the exact determination of the solution to linear completely regular differential-algebraic systems with delay</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0009-0009-7531-8711</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Хартовский</surname><given-names>В. Е.</given-names></name><name name-style="western" xml:lang="en"><surname>Khartovskii</surname><given-names>V. E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Хартовский Вадим Евгеньевич – доктор физико-математических наук, доцент, заведующий кафедрой логистики и методов управления</p><p>ул. Ожешко, 22, 230023, Гродно</p></bio><bio xml:lang="en"><p>Vadim E. Khartovskii – Dr. Sc. (Physics and Mathematics), Associate Professor, Head of the Department of Logistics and Methods of Control</p><p>22, Ozheshko Str., 230023, Grodno</p></bio><email xlink:type="simple">hartovskij@grsu.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Гродненский государственный университет имени Янки Купалы</institution></aff><aff xml:lang="en"><institution>Yanka Kupala State University of Grodno</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2024</year></pub-date><pub-date pub-type="epub"><day>05</day><month>10</month><year>2024</year></pub-date><volume>60</volume><issue>3</issue><fpage>203</fpage><lpage>215</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Хартовский В.Е., 2024</copyright-statement><copyright-year>2024</copyright-year><copyright-holder xml:lang="ru">Хартовский В.Е.</copyright-holder><copyright-holder xml:lang="en">Khartovskii V.E.</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://vestifm.belnauka.by/jour/article/view/795">https://vestifm.belnauka.by/jour/article/view/795</self-uri><abstract><p>Для линейных автономных вполне регулярных дифференциально-алгебраических систем с соизмеримыми запаздываниями решается задача точного восстановления решения по измерениям наблюдаемого выхода. Процесс восстановления реализуется при помощи финитного наблюдателя, представляющего собой выход линейной автономной системы запаздывающего типа с соизмеримыми сосредоточенными и распределенными запаздываниями и наперед заданным конечным спектром. Получен критерий существования такого наблюдателя.</p></abstract><trans-abstract xml:lang="en"><p>We study the problem of exact reconstruction of the solution from measurements of the observed output for linear autonomous completely regular differential-algebraic systems with commensurate delays. The reconstruction process is implemented using a finite observer, which is the output of a linear autonomous retarded system type with commensurate concentrated and distributed delays and a predetermined finite spectrum. The criterion for the existence of such an observer is obtained.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>линейная автономная вполне регулярная дифференциально-алгебраическая система</kwd><kwd>наблюдаемый выход</kwd><kwd>финитный наблюдатель</kwd><kwd>критерий существования</kwd></kwd-group><kwd-group xml:lang="en"><kwd>linear autonomous completely regular differential-algebraic system</kwd><kwd>observable output</kwd><kwd>finite observer</kwd><kwd>criterion of existence</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Luenberger, D. G. An introduction to observers / D. G. Luenberger // IEEE Trans. Autom. Control. – 1971. – Vol. 16, № 6. – P. 596–602. https://doi.org/10.1109/tac.1971.1099826</mixed-citation><mixed-citation xml:lang="en">Luenberger D. G. An introduction to observers. 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