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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">mais</journal-id><journal-title-group><journal-title xml:lang="ru">Моделирование и анализ информационных систем</journal-title><trans-title-group xml:lang="en"><trans-title>Modeling and Analysis of Information Systems</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1818-1015</issn><issn pub-type="epub">2313-5417</issn><publisher><publisher-name>Yaroslavl State University</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">mais-1059</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>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Articles</subject></subj-group></article-categories><title-group><article-title>О гипотезе Лассака для выпуклого тела</article-title><trans-title-group xml:lang="en"><trans-title>On the Lassak Conjecture for a Convex Body</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>Невский</surname><given-names>Михаил Викторович</given-names></name><name name-style="western" xml:lang="en"><surname>Nevskii</surname><given-names>M. V.</given-names></name></name-alternatives><email xlink:type="simple">mnevsk@uniyar.ac.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Ярославский государственный университет им. П.Г. Демидова</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2011</year></pub-date><pub-date pub-type="epub"><day>20</day><month>09</month><year>2011</year></pub-date><volume>18</volume><issue>3</issue><fpage>5</fpage><lpage>11</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Невский М.В., 2011</copyright-statement><copyright-year>2011</copyright-year><copyright-holder xml:lang="ru">Невский М.В.</copyright-holder><copyright-holder xml:lang="en">Nevskii M.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.mais-journal.ru/jour/article/view/1059">https://www.mais-journal.ru/jour/article/view/1059</self-uri><abstract><p>В 1993 г. М. Лассак сформулировал (в эквивалентном виде) следующую гипотезу. Если в выпуклое тело  $C \subset R^n$ можно вписать транслят куба $[0,1]^n$, то $\sum_{i=1}^n \frac{1}{\omega_i}  \geq 1$. Здесь $\omega_i$ - ширина $C$ в направлении i-й координатной оси. В статье даётся новое доказательство этого утверждения для n = 2. Также мы показываем, что для n-мерного симплекса, в который можно вписать транслят $[0,1]^n$, справедливо $\sum_{i=1}^n \frac{1}{\omega_i} = 1$.</p></abstract><trans-abstract xml:lang="en"><p>In 1993 M. Lassak formulated (in the equivalent form) the following conjecture. If we can inscribe a translate of the cube $[0,1]^n$ into a convex body $C \subset R^n$, then $\sum_{i=1}^n \frac{1}{\omega_i}  \geq 1$. Here $\omega_i$ denotes the width of $C$ in the direction of the ith coordinate axis. The paper contains a new proof of this statement for n = 2. Also we show that if a translate of $[0,1]^n$ can be inscribed into the n-dimensional simplex, then for this simplex holds $\sum_{i=1}^n \frac{1}{\omega_i} = 1$.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>выпуклое тело</kwd><kwd>ширина</kwd><kwd>осевой диаметр</kwd><kwd>гомотетия</kwd><kwd>симплекс</kwd><kwd>интерполяция</kwd><kwd>проектор</kwd></kwd-group><kwd-group xml:lang="en"><kwd>convex body</kwd><kwd>width</kwd><kwd>axial diameter</kwd><kwd>homothety</kwd><kwd>simplex</kwd><kwd>interpolation</kwd><kwd>projection</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">Невский М. B. Об одном свойстве n-мерного симплекса // Матем. заметки. 2010. Т. 87, № 4. С. 580-593.</mixed-citation><mixed-citation xml:lang="en">Невский М. B. Об одном свойстве n-мерного симплекса // Матем. заметки. 2010. Т. 87, № 4. С. 580-593.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Nevskii M. Properties of axial diameters of a simplex // Discrete Comput. Geom. 2011. V. 46, №2. P. 301-312.</mixed-citation><mixed-citation xml:lang="en">Nevskii M. Properties of axial diameters of a simplex // Discrete Comput. Geom. 2011. V. 46, №2. P. 301-312.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Lassak M. Relationships between widths of a convex body and of an inscribed parallelotope // Bull. Austral. Math. Soc. 2001. V. 63. P. 133-140.</mixed-citation><mixed-citation xml:lang="en">Lassak M. Relationships between widths of a convex body and of an inscribed parallelotope // Bull. Austral. Math. Soc. 2001. V. 63. P. 133-140.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Lassak M. Approximation of convex bodies by rectangles // Geom. Dedic. 1993. V. 47. P. 111-117.</mixed-citation><mixed-citation xml:lang="en">Lassak M. Approximation of convex bodies by rectangles // Geom. Dedic. 1993. V. 47. P. 111-117.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Scott P. R. Lattices and convex sets in space // Quart. J. Math. Oxford. 1985. V. 36, № 2. P. 359-362.</mixed-citation><mixed-citation xml:lang="en">Scott P. R. Lattices and convex sets in space // Quart. J. Math. Oxford. 1985. V. 36, № 2. P. 359-362.</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
