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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">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2023-24-3-42-55</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-1551</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>Статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Article</subject></subj-group></article-categories><title-group><article-title>Пары взаимодополнительных 2-мерных симплициальных многогранников: интересные примеры</article-title><trans-title-group xml:lang="en"><trans-title>Pairs of mutually complementary 2-dimensional simplicial polyhedra: Interesting examples</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>Лоренс</surname><given-names>Серж Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Lawrence</surname><given-names>Serge Alexandrovich</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук, доцент</p></bio><bio xml:lang="en"><p>candidate of physical and mathematical sciences, associateprofessor</p></bio><email xlink:type="simple">lawrencenko@hotmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лао</surname><given-names>Алекс Сергеевич</given-names></name><name name-style="western" xml:lang="en"><surname>Lao</surname><given-names>Alex Sergeevich</given-names></name></name-alternatives><email xlink:type="simple">laoshanda@hotmail.com</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Лао</surname><given-names>Мария Евгеньевна</given-names></name><name name-style="western" xml:lang="en"><surname>Lao</surname><given-names>Maria Evgenievna</given-names></name></name-alternatives><email xlink:type="simple">many444@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Челяпина</surname><given-names>Ольга Ивановна</given-names></name><name name-style="western" xml:lang="en"><surname>Chelyapina</surname><given-names>Olga Ivanovna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат технических наук, доцент</p></bio><bio xml:lang="en"><p>candidate of technical sciences, associate professor</p></bio><email xlink:type="simple">olga-chelyapina@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Российский государственный университет туризма и сервиса; Институт сервисных технологий</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Russian State University of Tourism and Service; Institute of Service Technologies</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>IT-компания «Комета Геймс»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>IT Company “Kometa Games”</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>03</day><month>11</month><year>2023</year></pub-date><volume>24</volume><issue>3</issue><fpage>42</fpage><lpage>55</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Лоренс С.А., Лао А.С., Лао М.Е., Челяпина О.И., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Лоренс С.А., Лао А.С., Лао М.Е., Челяпина О.И.</copyright-holder><copyright-holder xml:lang="en">Lawrence S.A., Lao A.S., Lao M.E., Chelyapina O.I.</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.chebsbornik.ru/jour/article/view/1551">https://www.chebsbornik.ru/jour/article/view/1551</self-uri><abstract><p>Построен пример пары (2-мерных) 8-вершинных симплициальных тороидальных многогранников (каждый многогранник без самопересечений) с одним и тем же 1-мерным остовом в 3-мерном (евклидовом) пространстве, у которых нет ни одной общей 2-мерной грани, причём объединение 2-мерных остовов этих двух многогранников даёт геометрическую реализацию в 3-мерном пространстве 2-мерного остова 4-мерного гипероктаэдра.Также построен пример пары 6-вершинных симплициальных многогранных проективных плоскостей с одним и тем же 1-мерным остовом в 4-мерном пространстве, у которых нетни одной общей 2-мерной грани, причем объединение этих проективных плоскостей даёт геометрическую реализацию в 4-мерном пространстве 2-мерного остова 5-мерного гипертетраэдра. Наконец, показывается, как можно образно представить атомы в молекуле метана CH4 “связанными” парой внутренне непересекающихся остовных многогранных лентМёбиуса.</p></abstract><trans-abstract xml:lang="en"><p>We construct an example of a pair of (2-dimensional) 8-vertex simplicial toroidal polyhedra (each polyhedron without self-intersection) with same 1-dimensional skeleton in (Euclidean) 3-space, which do not have a single common 2-face, and the union of the 2-skeletons of these two polyhedra gives a geometric realization of the 2-skeleton of the 4-dimensional hyperoctahedron in 3-space. Also, we construct an example of a pair of 6-vertex simplicial polyhedral projective planes with the same 1-skeleton in 4-space, which do not have a single common 2-face, and the union of these projective planes gives a geometric realization of the 2-skeleton of the 5-hypertetrahedron in 4-space. Finally, it is shown how to imagine, figuratively, the atoms in the molecule of methane CH4 “linked” by a pair of internally disjoint spanning polyhedral M¨obius strips.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>многогранник</kwd><kwd>триангуляция</kwd><kwd>тор</kwd><kwd>проективная плоскость</kwd><kwd>лента Мёбиуса</kwd><kwd>диаграмма Шлегеля</kwd><kwd>GeoGebra</kwd></kwd-group><kwd-group xml:lang="en"><kwd>polyhedron</kwd><kwd>triangulation</kwd><kwd>torus</kwd><kwd>projective plane</kwd><kwd>M¨obius strip</kwd><kwd>Schlegel diagram</kwd><kwd>GeoGebra</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">Archdeacon D., Bonnington C.P., Ellis-Monaghan J. A. How to exhibit toroidal maps in space // Discrete Comput. Geom. 2007. Vol. 38. № 3. P. 573-594.</mixed-citation><mixed-citation xml:lang="en">Archdeacon, D., Bonnington, C.P. &amp; Ellis-Monaghan, J. 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