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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">mathematics</journal-id><journal-title-group><journal-title xml:lang="ru">Вестник российских университетов. Математика</journal-title><trans-title-group xml:lang="en"><trans-title>Russian Universities Reports. Mathematics</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2686-9667</issn><issn pub-type="epub">2782-3342</issn><publisher><publisher-name>Тамбовский государственный университет имени Г.Р. Державина</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.20310/1810-0198-2018-23-124-655-665</article-id><article-id custom-type="elpub" pub-id-type="custom">mathematics-304</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>ARTICLES</subject></subj-group></article-categories><title-group><article-title>РАЗМЕЩЕНИЯ БЕЗ СОСЕДЕЙ</article-title><trans-title-group xml:lang="en"><trans-title>PLACEMENTS WITHOUT NEIGHBOURS</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>Молчанов</surname><given-names>Владимир Федорович</given-names></name><name name-style="western" xml:lang="en"><surname>Molchanov</surname><given-names>Vladimir Fedorovich</given-names></name></name-alternatives><email xlink:type="simple">v.molchanov@bk.ru</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>Крюкова</surname><given-names>Екатерина Евгеньевна</given-names></name><name name-style="western" xml:lang="en"><surname>Kryukova</surname><given-names>Ekaterina Evgenievna</given-names></name></name-alternatives><email xlink:type="simple">e.kryukowa2011@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>ФГБОУ ВО «Тамбовский государственный университет им. Г.Р. Державина»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Tambov State University named after G.R. Derzhavin</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>02</day><month>07</month><year>2026</year></pub-date><volume>23</volume><issue>124</issue><fpage>655</fpage><lpage>665</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Молчанов В.Ф., Крюкова Е.Е., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Молчанов В.Ф., Крюкова Е.Е.</copyright-holder><copyright-holder xml:lang="en">Molchanov V.F., Kryukova E.E.</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://mathematics.elpub.ru/jour/article/view/304">https://mathematics.elpub.ru/jour/article/view/304</self-uri><abstract><p>В настоящей работе мы рассматриваем некоторые задачи из комбинаторного анализа, связанные с размещениями без соседей на графах, а именно, мы находим количества и вероятности таких размещений на простейших графах (отрезок, два отрезка, цикл), а также (это более трудно) такие же задачи для цикла с точностью до поворота.</p></abstract><trans-abstract xml:lang="en"><p>In this paper we consider some problems in combinatorial analysis related to placements without neighbours on graphs, namely, we find numbers and probabilities of such placements for simplest graphs (segment, two segments, cycle), and also (which is more difficult) we solve the same problems for a cycle up to rotations.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>рекуррентные соотношения</kwd><kwd>числа Фибоначчи</kwd><kwd>многочлены Фибоначчи</kwd><kwd>числа Люка</kwd><kwd>многочлены Люка</kwd></kwd-group><kwd-group xml:lang="en"><kwd>recurrence relations</kwd><kwd>Fibonacci numbers</kwd><kwd>Fibonacci polynomials</kwd><kwd>Lucas numbers</kwd><kwd>Lucas polynomials</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">Райзер Г.Дж. Комбинаторная математика. М.: Мир, 1966.</mixed-citation><mixed-citation xml:lang="en">Райзер Г.Дж. Комбинаторная математика. М.: Мир, 1966.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Виноградов И.М. Основы теории чисел. Москва; Ленинград: Гостехиздат, 1952.</mixed-citation><mixed-citation xml:lang="en">Виноградов И.М. Основы теории чисел. Москва; Ленинград: Гостехиздат, 1952.</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>
