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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">51123</article-id><article-id pub-id-type="edn">JWJLPD</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Physics and Astronomy</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Физика</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">Spinor Fields in Bianchi Type-VI Cosmology</article-title><trans-title-group xml:lang="ru"><trans-title>Спинорные поля в космологии Бианки VI</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Saha</surname><given-names>B.</given-names></name><name xml:lang="ru"><surname>Саха</surname><given-names>Б.</given-names></name></name-alternatives><email>-</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Joint Institute for Nuclear Research</institution></aff><aff><institution xml:lang="ru">Объединенный институт ядерных исследований</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2007-12-15" publication-format="electronic"><day>15</day><month>12</month><year>2007</year></pub-date><issue>1-2</issue><issue-title xml:lang="en">NO12 (2007)</issue-title><issue-title xml:lang="ru">№12 (2007)</issue-title><fpage>62</fpage><lpage>65</lpage><history><date date-type="received" iso-8601-date="2026-07-08"><day>08</day><month>07</month><year>2026</year></date></history><permissions><copyright-statement xml:lang="en">Copyright ©; 2007, Saha B.</copyright-statement><copyright-statement xml:lang="ru">Copyright ©; 2007, Саха Б.</copyright-statement><copyright-year>2007</copyright-year><copyright-holder xml:lang="en">Saha B.</copyright-holder><copyright-holder xml:lang="ru">Саха 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/51123">https://journals.rudn.ru/miph/article/view/51123</self-uri><abstract xml:lang="en">Exact solutions to the self-consistent system of equations of interacting spinor and scalar fields are considered within the scope of Bianchi type VI cosmological model filled with a perfect fluid in account of a $\Lambda$-term have been obtained. The role of the spatial inhomogeneity has been studied. It has been shown that the introduction of a positive $\Lambda$, the most widespread kind of dark energy, leads to the rapid growth of the universe, while the negative one, corresponding to an additional gravitational energy gives rise to an oscillatory or non-periodic mode of expansion.</abstract><trans-abstract xml:lang="ru">Получены точные решения самосогласованной системы уравнений нелинейных спинорных и скалярных полей в рамках космологической модели типа Бианки VI, заполненной идеальной жидкостью с учетом $\Lambda$-члена. Изучена роль пространственной неоднородности. Показано, что введение положительного $\Lambda$ (наиболее широко распространенный вид темной энергии) приводит к быстрому росту вселенной, в то время как отрицательный, соответствующий дополнительной гравитационной энергии, генерирует колебательные или непериодические моды расширения.</trans-abstract></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Rybakov Y. P., Saha B., Shikin G. N. // Commun. Theor. Phys. - Vol. 3. - 1994. - P. 199.</mixed-citation></ref><ref id="B2"><label>2.</label><mixed-citation>Saha B., Shikin G. N. // J. Math. Phys. - Vol. 38. - 1997. - P. 5305.</mixed-citation></ref><ref id="B3"><label>3.</label><mixed-citation>Saha B., Shikin G. N. // Gen. Relativ. Gravit. - Vol. 29. - 1997. - P. 1099.</mixed-citation></ref><ref id="B4"><label>4.</label><mixed-citation>Saha B. // Phys. Rev. D. - Vol. 64. - 2001.</mixed-citation></ref><ref id="B5"><label>5.</label><mixed-citation>Saha B. // Mod. Phys. Lett. A. - Vol. 16. - 2001. - P. 1287.</mixed-citation></ref><ref id="B6"><label>6.</label><mixed-citation>Saha B., Boyadjiev T. // Phys. Rev. D. - Vol. 69. - 2004. - http://www.jinr.ru/∼bijan/my_papers/PRD24010.pdf.</mixed-citation></ref><ref id="B7"><label>7.</label><mixed-citation>Armend´ariz-Pic´on C., Greene P. B. // Gen. Relativ. Gravit. - Vol. 35. - 2003. - P. 1637.</mixed-citation></ref><ref id="B8"><label>8.</label><mixed-citation>Ribas M. O., Devecchi F. P., Kremer G. M. // Phys. Rev. D. - Vol. 72. - 2005. - P. 123502.</mixed-citation></ref><ref id="B9"><label>9.</label><mixed-citation>Saha B. // Phys. Rev. D. - Vol. 74. - 2006. - P. 124030.</mixed-citation></ref><ref id="B10"><label>10.</label><mixed-citation>Saha B. // Gravitation &amp; Cosmology. - Vol. 12, No 2-3 (46-47). - 2006. - P. 215.</mixed-citation></ref><ref id="B11"><label>11.</label><mixed-citation>Singh T., Agrawal A. K. // Int. J. Theor. Phys. - Vol. 32. - 1993. - P. 1041.</mixed-citation></ref><ref id="B12"><label>12.</label><mixed-citation>Weaver M. // Class. Quantum Grav. - Vol. 17. - 2000. - P. 421.</mixed-citation></ref><ref id="B13"><label>13.</label><mixed-citation>Ib´an˜ez J., van der Hoogen R., Coley A. A. // Phys. Rev. D. - Vol. 51. - 1995. - P. 928.</mixed-citation></ref><ref id="B14"><label>14.</label><mixed-citation>Socorro J., Medina E. R. // Phys. Rev. D. - Vol. 61. - 2000. - P. 087702.</mixed-citation></ref><ref id="B15"><label>15.</label><mixed-citation>Berger B. K. // Class. Quantum Grav. - Vol. 13. - 1996. - P. 1273.</mixed-citation></ref><ref id="B16"><label>16.</label><mixed-citation>Apostolopoulos P. A. - e-print gr-qc/0310033.</mixed-citation></ref><ref id="B17"><label>17.</label><mixed-citation>Christodoulakis T., Kofinas G., Papadopoulos G. O. // Phys. Lett. B. - Vol. 514. - 2001. - P. 149.</mixed-citation></ref><ref id="B18"><label>18.</label><mixed-citation>Christodoulakis T., Papadopoulos G. O. - e-print gr-qc/0109058.</mixed-citation></ref><ref id="B19"><label>19.</label><mixed-citation>Saha B. // Phys. Rev. D. - Vol. 69. - 2004. - P. 124006.</mixed-citation></ref><ref id="B20"><label>20.</label><mixed-citation>Saha B. Nonlinear Spinor Field in Anisotropic Universes. - eprint gr-qc/0207025. - http://xxx.lanl.gov/abs/gr-qc/0207025. http://xxx.lanl.gov/abs/gr-qc/0207025.</mixed-citation></ref><ref id="B21"><label>21.</label><mixed-citation>Saha B. Interacting Spinor and Scalar Fields in Bianchi Cosmology. - e-print grqc/0701059. - talk given at the Conf. in memory of Prof. Ya. P. Terletski. Talk given at the Conf. in memory of Prof. Ya. P. Terletski.</mixed-citation></ref></ref-list></back></article>
