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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-1144</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>Род и категория Люстерника - Шнирельмана прообразов</article-title><trans-title-group xml:lang="en"><trans-title>Genus and the Lyusternik-Schnirelmann category of preimages</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>Карасёв</surname><given-names>Р. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Karasev</surname><given-names>R. N.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff xml:lang="ru" id="aff-1"><institution>Московский физикотехнический институт</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2007</year></pub-date><pub-date pub-type="epub"><day>20</day><month>12</month><year>2007</year></pub-date><volume>14</volume><issue>4</issue><fpage>31</fpage><lpage>35</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Карасёв Р.Н., 2007</copyright-statement><copyright-year>2007</copyright-year><copyright-holder xml:lang="ru">Карасёв Р.Н.</copyright-holder><copyright-holder xml:lang="en">Karasev R.N.</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/1144">https://www.mais-journal.ru/jour/article/view/1144</self-uri><abstract><p>Вводится некоторое аксиоматическое обобщение понятия относительной категории Люстерника - Шнирельмана и для него доказывается оценка на категорию прообраза точки (или ее окрестностей) при отображении в конечный полиэдр.</p></abstract><trans-abstract xml:lang="en"><p>In this paper some axiomatic generalization (function of open subsets) of the relative Lyusternik - Schnirelmann category is considered. For this function and a given map of the underlying space to a finite polyhedron some lower bounds on the value of this function on the preimage of some point are given.</p></trans-abstract></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Lusternik L.A., Schnirelmann L.G. Methodes topologiques dans le probiemes variationnels. - Paris: Hermann, 1934.</mixed-citation><mixed-citation xml:lang="en">Lusternik L.A., Schnirelmann L.G. Methodes topologiques dans le probiemes variationnels. - Paris: Hermann, 1934.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Berstein I., Ganea T. The category of a map and of a cohomology class // Fundam. Math. - 1961. - 50. - P. 265-279.</mixed-citation><mixed-citation xml:lang="en">Berstein I., Ganea T. The category of a map and of a cohomology class // Fundam. Math. - 1961. - 50. - P. 265-279.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">James I.M. On category, in the sense of Lusternik - Schnirelmann // Topology. - 1978. - 17. - P. 331-348.</mixed-citation><mixed-citation xml:lang="en">James I.M. On category, in the sense of Lusternik - Schnirelmann // Topology. - 1978. - 17. - P. 331-348.</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Schwarz A.S. The genus of a fibre space // Amer. Math. Soc. Transl. - 1966 .- 55. - P. 49-140.</mixed-citation><mixed-citation xml:lang="en">Schwarz A.S. The genus of a fibre space // Amer. Math. Soc. Transl. - 1966 .- 55. - P. 49-140.</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Yang C.-T. On Theorems of Borsuk - Ulam, Kakutani - Yamabe - Yujobo and Dyson, II // The Annals of Mathematics. - 1955. - 2nd Ser. - 62(2). - P. 271-283.</mixed-citation><mixed-citation xml:lang="en">Yang C.-T. On Theorems of Borsuk - Ulam, Kakutani - Yamabe - Yujobo and Dyson, II // The Annals of Mathematics. - 1955. - 2nd Ser. - 62(2). - P. 271-283.</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Воловиков А.Ю. Точки совпадения отображений -пространств // Изв. РАН.: Сер. матем. - 2005. - 69(5) - С. 53-106.</mixed-citation><mixed-citation xml:lang="en">Воловиков А.Ю. Точки совпадения отображений -пространств // Изв. РАН.: Сер. матем. - 2005. - 69(5) - С. 53-106.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Varadarajan K. On fibrations and category // Mathematische Zeitschrift. - 1965. - 88. - P. 267-273.</mixed-citation><mixed-citation xml:lang="en">Varadarajan K. On fibrations and category // Mathematische Zeitschrift. - 1965. - 88. - P. 267-273.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Krasnosel'skii M.A. On special coverings of a finite-dimensional sphere// Dokl. Akad. Nauk SSSR. - 1955. - 103. - P. 961-964.</mixed-citation><mixed-citation xml:lang="en">Krasnosel'skii M.A. On special coverings of a finite-dimensional sphere// Dokl. Akad. Nauk SSSR. - 1955. - 103. - P. 961-964.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Yang C.-T. Continuous Functions From Spheres to Euclidean Spaces // The Annals of Mathematics. - 1955. - 2nd Ser. - 62(2). - P. 284-292.</mixed-citation><mixed-citation xml:lang="en">Yang C.-T. Continuous Functions From Spheres to Euclidean Spaces // The Annals of Mathematics. - 1955. - 2nd Ser. - 62(2). - P. 284-292.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Froloff S., Elsholz L. Limite inferieure pour le nombre des valeurs critiques d'une fonction, donne sur une variete // Math. Sbornik. - 1935. - 42(5). - P. 637-643.</mixed-citation><mixed-citation xml:lang="en">Froloff S., Elsholz L. Limite inferieure pour le nombre des valeurs critiques d'une fonction, donne sur une variete // Math. Sbornik. - 1935. - 42(5). - P. 637-643.</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>
