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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="oration" 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">8336</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>Conference Report, Theses of Report</subject></subj-group></article-categories><title-group><article-title xml:lang="en">Degenerate 4-Dimensional Matrices with Semi-Group Structure and Polarization Optics</article-title><trans-title-group xml:lang="ru"><trans-title>Вырожденные 4-мерные матрицы со структурой полугрупп и поляризационная оптика</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Ovsiyuk</surname><given-names>E M</given-names></name><name xml:lang="ru"><surname>Овсиюк</surname><given-names>Елена Михайловна</given-names></name></name-alternatives><email>e.ovsiyuk@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Red’kov</surname><given-names>V M</given-names></name><name xml:lang="ru"><surname>Редьков</surname><given-names>Виктор Михайлович</given-names></name></name-alternatives><email>v.redkov@dragon.bas-net.by</email><xref ref-type="aff" rid="aff2"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Mozyr State Pedagogical University</institution></aff><aff><institution xml:lang="ru">Мозырский государственный педагогический университет им. И.П. Шамякина</institution></aff></aff-alternatives><aff-alternatives id="aff2"><aff><institution xml:lang="en">Institute of Physics, NAS of Belarus</institution></aff><aff><institution xml:lang="ru">ГНУ «Институт физики им. Б.И Степанова Национальной академии наук Беларуси»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2013-01-15" publication-format="electronic"><day>15</day><month>01</month><year>2013</year></pub-date><issue>1</issue><issue-title xml:lang="en">NO1 (2013)</issue-title><issue-title xml:lang="ru">№1 (2013)</issue-title><fpage>245</fpage><lpage>259</lpage><history><date date-type="received" iso-8601-date="2016-09-08"><day>08</day><month>09</month><year>2016</year></date></history><permissions><copyright-statement xml:lang="ru">Copyright ©; 2013, Овсиюк Е.М., Редьков В.М.</copyright-statement><copyright-year>2013</copyright-year><copyright-holder xml:lang="ru">Овсиюк Е.М., Редьков В.М.</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/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/miph/article/view/8336">https://journals.rudn.ru/miph/article/view/8336</self-uri><abstract xml:lang="en">In polarization optics, an important role play Mueller matrices — real four-dimensional matrices which describe the eﬀect of action of optical elements on the polarization state of the light, described by 4-dimensional Stokes vectors. An important issue is to classify possible classes of the Mueller matrices. In particular, of special interest are degenerate Mueller matrices with vanishing determinants. With the use of a special technique of parameterizing arbitrary 4-dimensional matrices in Dirac basis, a classiﬁcation of degenerate 4-dimensional real matrices of rank 1, 2, 3. is elaborated. To separate possible classes of degenerate matrices we impose linear restrictions on 16 parameters of 4 × 4 matrices which are compatible with the group multiplication law.</abstract><trans-abstract xml:lang="ru">В поляризационной оптике важную роль играют матрицы Мюллера — вещественные 4-мерные матрицы, описывающие воздействие оптических элементов на состояние поляризации света в 4-мерном формализме векторов Стокса. Насущной проблемой является классификация всех возможных классов матриц Мюллера. В частности, специального интереса заслуживают вырожденные матрицы Мюллера с нулевым определителем. В этом контексте, в работе с использованием параметризации 4-мерных матриц на основе базиса матриц Дирака получена классификация простых возможных классов вырожденных матриц Мюллера со структурой полугрупп рангов 1, 2, 3. Метод исследования основан на наложении линейных ограничений на 16 дираковских параметров 4-мерных матриц, при этом требуется совместимость таких ограничений с групповым законом матричного умножения.</trans-abstract><kwd-group xml:lang="en"><kwd>polarization of the light</kwd><kwd>degenerate Mueller matrices</kwd><kwd>classiﬁcation</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>поляризация света</kwd><kwd>вырожденные матрицы Мюллера</kwd><kwd>классификация</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Red’kov V.M. Lorentz Group and Polarization of the Light // Advances in Applied Clifford Algebras. — 2011. — Vol. 21. — Pp. 203–220.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Bogush A.A., Red’kov V.M. On Unique Parametrization of the Linear Group GL(4.C) and its Subgroups by Using the Dirac Algebra Basis // Nonlinear Phenomena in Complecs Sistem. — 2008. — Vol. 11. — Pp. 1–24.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Red’kov V.M., Bogush A.A., Tokarevskaya N.G. On Parametrization of the Linear GL(4,C) and Unitary SU(4) Groups in Terms of Dirac Matrices // SIGMA. — 2008. — Vol. 4. — P. 021.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Red’kov V.M., Bogush A.A., Tokarevskaya N.G. 4.4 Matrices in Dirac Parametrization: Inversion Problem and Determinant. — arXiv:0709.3574v2. — 2008.</mixed-citation></ref></ref-list></back></article>
