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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">10.29235/1561-2430-2021-57-3-347-352</article-id><article-id custom-type="elpub" pub-id-type="custom">vestifm-602</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>ФИЗИКА</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>PHYSICS</subject></subj-group></article-categories><title-group><article-title>Топологически нетривиальное состояние в диссипативной модели φ4 с нарушением лоренц-инвариантности</article-title><trans-title-group xml:lang="en"><trans-title>Topologically non-trivial solution in a dissipative φ4 model with Lorentz-invariance violation</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>Князев</surname><given-names>М. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Knyazev</surname><given-names>M. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Князев Михаил Александрович – доктор физико-математических наук, доцент, заведующий кафедрой «Инженерная математика»</p><p>пр. Независимости, 65, 220013, г. Минск,</p></bio><bio xml:lang="en"><p>Michael A. Knyazev – Dr. Sc. (Physics and Mathematics), Head of the Department of Engineering Mathematics</p><p>65, Nezavisimosti Ave., 220013, Minsk</p></bio><email xlink:type="simple">maknyazev@bntu.by</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Белорусский национальный технический университет</institution></aff><aff xml:lang="en"><institution>Belarusian National Technical University</institution></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>07</day><month>10</month><year>2021</year></pub-date><volume>57</volume><issue>3</issue><fpage>347</fpage><lpage>352</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Князев М.А., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Князев М.А.</copyright-holder><copyright-holder xml:lang="en">Knyazev M.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://vestifm.belnauka.by/jour/article/view/602">https://vestifm.belnauka.by/jour/article/view/602</self-uri><abstract><p>Рассмотрено (1+1)-мерное уравнение движения теории φ4 при одновременном учете процессов диссипации и нарушения инвариантности относительно преобразований Лоренца. В аналитической форме построено топологически нетривиальное решение данного уравнения, описывающее состояние типа одиночного кинка. Для этой цели был использован модифицированный прямой метод Хироты решения нелинейных уравнений в частных производных. Указанная модификация метода привела к определенным ограничениям на допустимые значения параметров модели и решения, при которых оно возможно.</p></abstract><trans-abstract xml:lang="en"><p>In this paper a (1+1)-dimension equation of motion for φ4-theory is considered for the case of simultaneously taking into a account of the processes of dissipation and violation the Lorentz-invariance. A topological non-trivial solution of one-kink type for this equation is constructed in an analytical form. To this end, the modiﬁed direct Hirota method for solving the nonlinear partial derivatives equations was used. A modiﬁcation of the method lead to special conditions on the parameters of the model and the solution.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>кинк</kwd><kwd>φ4-модель</kwd><kwd>диссипация</kwd><kwd>нарушение лоренц-инвариантности</kwd><kwd>метод Хироты</kwd></kwd-group><kwd-group xml:lang="en"><kwd>kink</kwd><kwd>φ4-model</kwd><kwd>dissipation</kwd><kwd>Lorentz-invariance violation</kwd><kwd>the Hirota method</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">Князев, М. А. Кинки в скалярной модели с затуханием / М. А. Князев. – Минск: Тэхналогiя, 2003. – 115 с.</mixed-citation><mixed-citation xml:lang="en">Knyazev M. A. Kinks in Scalar Model with Damping. Minsk, Tekhnalogiya Publ., 2013. 115 p. 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