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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">donstu</journal-id><journal-title-group><journal-title xml:lang="en">Advanced Engineering Research (Rostov-on-Don)</journal-title><trans-title-group xml:lang="ru"><trans-title>Advanced Engineering Research (Rostov-on-Don)</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2687-1653</issn><publisher><publisher-name>Don State Technical University</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">donstu-581</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="en"><subject>PHYSICAL AND MATHEMATICAL SCIENCES</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ФИЗИКО-МАТЕМАТИЧЕСКИЕ НАУКИ</subject></subj-group></article-categories><title-group><article-title>MATHEMATICAL ANALYSIS OF NON-GAUSSIAN REGIME ORIGINATION  IN NUMERICAL INTEGRATION OF ISOELECTROFOCUSING PROBLEM</article-title><trans-title-group xml:lang="ru"><trans-title>МАТЕМАТИЧЕСКИЙ АНАЛИЗ ВОЗНИКНОВЕНИЯ «НЕГАУССОВСКИХ» РЕЖИМОВ ПРИ ЧИСЛЕННОМ ИНТЕГРИРОВАНИИ ЗАДАЧИ  ИЗОЭЛЕКТРИЧЕСКОГО ФОКУСИРОВАНИЯ</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>Сахарова</surname><given-names>Людмила Викторовна</given-names></name><name name-style="western" xml:lang="en"><surname>Sakharova</surname><given-names>Lyudmila V.</given-names></name></name-alternatives><email xlink:type="simple">l_sakharova@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Морская государственная академия имени адмирала Ф.Ф. Ушакова в г. Ростове-на-Дону.</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Mathematics Department, Admiral Ushakov Maritime State Academy, Rostov-on-Don branch</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2012</year></pub-date><pub-date pub-type="epub"><day>30</day><month>12</month><year>2012</year></pub-date><volume>12</volume><issue>4</issue><fpage>5</fpage><lpage>15</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Sakharova L.V., 2012</copyright-statement><copyright-year>2012</copyright-year><copyright-holder xml:lang="ru">Сахарова Л.В.</copyright-holder><copyright-holder xml:lang="en">Sakharova L.V.</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.vestnik-donstu.ru/jour/article/view/581">https://www.vestnik-donstu.ru/jour/article/view/581</self-uri><abstract><p>The mathematical analysis of the problem of so-called “non-Gaussian” regimes in the computational solution of the integro-differential isoelectric focusing (IEF) problem is done. Due to the problem analytic transformation, the development of the optimization algorithms and the numerical asymptotic testing, it is found that non-Gaussian regimes are the property of the original mathematical problem, and not the computational error accumulation consequence. </p></abstract><trans-abstract xml:lang="ru"><p>Проведен математический анализ проблемы возникновения так называемых «негауссовских» режимов при численном решении интегро-дифференциальной задачи изоэлектрического фокусирования. В результате аналитического преобразования задачи, составления оптимизационных алгоритмов и численного асимптотического тестирования установлено, что «негауссовские» режимы являются свойством исходной математической задачи, а не результатом накопления вычислительной погрешности.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>математическое моделирование</kwd><kwd>краевая задача</kwd><kwd>«негауссовские» режимы</kwd><kwd>гауссовское распределение</kwd><kwd>оптимизационный алгоритм.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>mathematical simulation</kwd><kwd>boundary-value problem</kwd><kwd>non-Gaussian regimes</kwd><kwd>Gaussian distribution</kwd><kwd>optimization algorithm.</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">Righetti P.G. Isoelectric focusing: Theory, Methodology and Application.</mixed-citation><mixed-citation xml:lang="en">Righetti P.G. 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