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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">Discrete and Continuous Models and Applied Computational Science</journal-id><journal-title-group><journal-title xml:lang="en">Discrete and Continuous Models and Applied Computational Science</journal-title><trans-title-group xml:lang="ru"><trans-title>Discrete and Continuous Models and Applied Computational Science</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2658-4670</issn><issn publication-format="electronic">2658-7149</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">37517</article-id><article-id pub-id-type="doi">10.22363/2658-4670-2023-31-4-375-386</article-id><article-id pub-id-type="edn">FPXPIV</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">On application of solution continuation method with respect to the best exponential argument in solving stiff boundary value problems</article-title><trans-title-group xml:lang="ru"><trans-title>О применении метода продолжения решения по экспоненциальному наилучшему аргументу для решения жёстких краевых задач</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-4215-3510</contrib-id><name-alternatives><name xml:lang="en"><surname>Tsapko</surname><given-names>Ekaterina D.</given-names></name><name xml:lang="ru"><surname>Цапко</surname><given-names>Е. Д.</given-names></name></name-alternatives><bio xml:lang="en"><p>Support engineer for Visiology platform</p></bio><email>zapkokaty@gmail.com</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0001-6077-0435</contrib-id><name-alternatives><name xml:lang="en"><surname>Leonov</surname><given-names>Sergey S.</given-names></name><name xml:lang="ru"><surname>Леонов</surname><given-names>С. С.</given-names></name></name-alternatives><bio xml:lang="en"><p>Candidate of Physical and Mathematical Sciences, Assistant Professor of Nikolsky Mathematical Institute of Peoples’ Friendship University of Russia named after Patrice Lumumba; Assistant Professor of Department of Mechatronics and Theoretical Mechanics of Moscow Aviation Institute</p></bio><email>powerandglory@yandex.ru</email><xref ref-type="aff" rid="aff2"/><xref ref-type="aff" rid="aff3"/></contrib><contrib contrib-type="author"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-9452-6577</contrib-id><name-alternatives><name xml:lang="en"><surname>Kuznetsov</surname><given-names>Evgenii B.</given-names></name><name xml:lang="ru"><surname>Кузнецов</surname><given-names>Е. Б.</given-names></name></name-alternatives><bio xml:lang="en"><p>Doctor of Physical and Mathematical Sciences, Professor of Department of Mechatronics and Theoretical Mechanics</p></bio><email>kuznetsov@mai.com</email><xref ref-type="aff" rid="aff3"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Joint Stock Company “Interregional Energy Service Company ‘Energoefficiency Technologies’ ”</institution></aff><aff><institution xml:lang="ru">Акционерное общество «Межрегиональная энергосервисная компания «Энергоэффективные технологии»</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">RUDN University</institution></aff><aff><institution xml:lang="ru">Российский университет дружбы народов</institution></aff></aff-alternatives><aff-alternatives id="aff3"><aff><institution xml:lang="en">Moscow Aviation Institute</institution></aff><aff><institution xml:lang="ru">Московский авиационный институт</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2023-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2023</year></pub-date><volume>31</volume><issue>4</issue><issue-title xml:lang="en">VOL 31, NO4 (2023)</issue-title><issue-title xml:lang="ru">ТОМ 31, №4 (2023)</issue-title><fpage>375</fpage><lpage>386</lpage><history><date date-type="received" iso-8601-date="2024-01-19"><day>19</day><month>01</month><year>2024</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2023, Tsapko E.D., Leonov S.S., Kuznetsov E.B.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2023, Цапко Е.Д., Леонов С.С., Кузнецов Е.Б.</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="en">Tsapko E.D., Leonov S.S., Kuznetsov E.B.</copyright-holder><copyright-holder xml:lang="ru">Цапко Е.Д., Леонов С.С., Кузнецов Е.Б.</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/miph/article/view/37517">https://journals.rudn.ru/miph/article/view/37517</self-uri><abstract xml:lang="en"><p style="text-align: justify;">The problematic of solving stiff boundary value problems permeates numerous scientific and engineering disciplines, demanding novel approaches to surpass the limitations of traditional numerical techniques. This research delves into the implementation of the solution continuation method with respect to the best exponential argument, to address these stiff problems characterized by rapidly evolving integral curves. The investigation was conducted by comparing the efficiency and stability of this novel method against the conventional shooting method, which has been a cornerstone in addressing such problems but struggles with the erratic growth of integral curves. The results indicate a marked elevation in computational efficiency when the problem is transformed using the exponential best argument. This method is particularly pronounced in scenarios where integral curves exhibit exponential growth speed. The main takeaway from this study is the instrumental role of the regularization parameter. Its judicious selection based on the unique attributes of the problem can dictate the efficiency of the solution. In summary, this research not only offers an innovative method to solve stiff boundary value problems but also underscores the nuances involved in method selection, potentially paving the way for further refinements and applications in diverse domains.</p></abstract><trans-abstract xml:lang="ru"><p style="text-align: justify;">Процесс построения решения жёстких краевых задач пронизывает множество научных и инженерных дисциплин, требуя новаторских подходов для преодоления ограничений традиционных численных методов. В данном исследовании рассматривается реализация метода продолжения решения по наилучшему аргументу и модифицированному экспоненциальному наилучшему аргументу для решения жёстких задач, характеризующихся быстрорастущими интегральными кривыми. Исследование проводилось путём сравнения эффективности и устойчивости нового подхода с традиционным методом стрельбы. Результаты показывают значительное улучшение вычислительной эффективности при преобразовании задачи к экспоненциальному наилучшему аргументу. Особенно хорошо этот метод проявляет себя в сценариях, где интегральные кривые демонстрируют экспоненциальную скорость роста. Одним из ключевых выводов этого исследования является важная роль параметра регуляризации, выбор которого может определять эффективность решения. В целом, данное исследование предлагает новаторский метод решения жёстких краевых задач и подчёркивает тонкости выбора метода, что может указать путь для дальнейших усовершенствований и применений в различных областях.</p></trans-abstract><kwd-group xml:lang="en"><kwd>stiff boundary value problems</kwd><kwd>solution continuation method</kwd><kwd>the best exponential argument</kwd><kwd>numerical method stability</kwd><kwd>integral curves</kwd><kwd>computational efficiency</kwd><kwd>shooting method</kwd><kwd>absolute stability region</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>жёсткие краевые задачи</kwd><kwd>метод продолжения решения</kwd><kwd>экспоненциальный наилучший аргумент</kwd><kwd>устойчивость численного метода</kwd><kwd>интегральные кривые</kwd><kwd>вычислительная эффективность</kwd><kwd>метод стрельбы</kwd><kwd>область абсолютной устойчивости</kwd></kwd-group><funding-group><funding-statement xml:lang="en">This paper was funded by the Russian Fund for Basic Researches according to the research project 20-31-90054.</funding-statement></funding-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>E. 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