<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE article PUBLIC "-//NLM//DTD JATS (Z39.96) Journal Publishing DTD v1.3 20210610//EN" "JATS-journalpublishing1-3.dtd">
<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 pub-id-type="doi">10.18255/1818-1015-2017-2-141-154</article-id><article-id custom-type="elpub" pub-id-type="custom">mais-505</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>Полиэдральные характеристики задач о сбалансированном и несбалансированном двудольных подграфах</article-title><trans-title-group xml:lang="en"><trans-title>Polyhedral Characteristics of Balanced and Unbalanced Bipartite Subgraph Problems</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-5976-3446</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Бондаренко</surname><given-names>Владимир Александрович</given-names></name><name name-style="western" xml:lang="en"><surname>Bondarenko</surname><given-names>Vladimir</given-names></name></name-alternatives><bio xml:lang="ru"><p>д-р физ.-мат. наук, профессор</p><p>ул. Советская, 14, г. Ярославль, 150003, Россия</p></bio><bio xml:lang="en"><p>doctor of science, professor</p><p>14 Sovetskaya str., Yaroslavl 150003, Russia</p></bio><email xlink:type="simple">bond@bond.edu.yar.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-4705-2409</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Николаев</surname><given-names>Андрей Валерьевич</given-names></name><name name-style="western" xml:lang="en"><surname>Nikolaev</surname><given-names>Andrei</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. физ.-мат. наук</p><p>ул. Советская, 14, г. Ярославль, 150003, Россия</p></bio><bio xml:lang="en"><p>PhD</p><p>14 Sovetskaya str., Yaroslavl 150003, Russia</p></bio><email xlink:type="simple">andrei.v.nikolaev@gmail.com</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0003-2022-4514</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Шовгенов</surname><given-names>Джамболет Азаматович</given-names></name><name name-style="western" xml:lang="en"><surname>Shovgenov</surname><given-names>Dzhambolet</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант</p><p>ул. Советская, 14, г. Ярославль, 150003, Россия</p></bio><bio xml:lang="en"><p>graduate student</p><p>14 Sovetskaya str., Yaroslavl 150003, Russia</p></bio><email xlink:type="simple">djsh92@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Ярославский государственный университет им. П.Г. Демидова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>P.G. Demidov Yaroslavl State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2017</year></pub-date><pub-date pub-type="epub"><day>29</day><month>04</month><year>2017</year></pub-date><volume>24</volume><issue>2</issue><fpage>141</fpage><lpage>154</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Бондаренко В.А., Николаев А.В., Шовгенов Д.А., 2017</copyright-statement><copyright-year>2017</copyright-year><copyright-holder xml:lang="ru">Бондаренко В.А., Николаев А.В., Шовгенов Д.А.</copyright-holder><copyright-holder xml:lang="en">Bondarenko V., Nikolaev A., Shovgenov D.</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/505">https://www.mais-journal.ru/jour/article/view/505</self-uri><abstract><p>Исследуются полиэдральные характеристики трех задач о построении оптимальных полных двудольных подграфов двудольных графов. В первой задаче рассматриваются сбалансированные подграфы с одинаковым числом вершин в каждой доле и произвольными весами ребер. В двух других задачах речь идет о несбалансированных подграфах максимального и минимального веса с неотрицательными ребрами. Устанавливается, что все три задачи являются NP-трудными. В работе изучаются многогранники и конусные разбиения рассматриваемых задач, а также их графы. Для задачи о сбалансированном подграфе приводится условие смежности вершин в полиэдральном графе и графе соответствующего конусного разбиения. Плотность полиэдрального графа оценивается снизу сверхполиномиальной функцией. Для задач о несбалансированных подграфах строятся сверхполиномиальные нижние оценки плотности графов неотрицательных конусных разбиений. Полученные результаты характеризуют временную трудоемкость задач в широком классе алгоритмов, использующих линейные сравнения.</p></abstract><trans-abstract xml:lang="en"><p>We study the polyhedral properties of three problems of constructing an optimal biclique in a bipartite graph. In the ﬁrst problem we consider a balanced biclique with the same number of vertices in both parts and arbitrary edge weights. In the other two problems it is required to ﬁnd maximum or minimum unbalanced bicliques with a ﬁxed number of vertices and non-negative edges. All three problems are established to be NP-hard. We study the polytopes and the cone decompositions of these problems and their 1-skeletons. We describe the adjacency criterion in the 1-skeleton of the balanced biclique polytope. Clique number of 1-skeleton is estimated from below by a superpolynomial function. For both unbalanced biclique problems we establish the superpolynomial lower bounds on the clique numbers of the graphs of non-negative cone decompositions. These values characterize the time complexity in a broad class of algorithms based on linear comparisons.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>полный двудольный граф</kwd><kwd>полиэдральный граф</kwd><kwd>конусное разбиение</kwd><kwd>плотность графа</kwd><kwd>NP-трудная задача</kwd></kwd-group><kwd-group xml:lang="en"><kwd>biclique</kwd><kwd>1-skeleton</kwd><kwd>cone decomposition</kwd><kwd>clique number</kwd><kwd>NP-hard problem</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">Бондаренко В.А., “Неполиномиальная нижняя оценка сложности задачи коммивояжера в одном классе алгоритмов”, Автоматика и телемеханика, 9 (1983), 45– 50; [Bondarenko V. A., “Nonpolynomial lowerbound of the traveling salesman problem complexety in one class of algorithms”, Automation and remote control, 44:9 (1983), 1137– 1142.]</mixed-citation><mixed-citation xml:lang="en">Бондаренко В.А., “Неполиномиальная нижняя оценка сложности задачи коммивояжера в одном классе алгоритмов”, Автоматика и телемеханика, 9 (1983), 45– 50; [Bondarenko V. A., “Nonpolynomial lowerbound of the traveling salesman problem complexety in one class of algorithms”, Automation and remote control, 44:9 (1983), 1137– 1142.]</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Бондаренко В.А., Максименко А.Н., Геометрические конструкции и сложность в комбинаторной оптимизации, ЛКИ, М., 2008, 184 с.; [Bondarenko V.A., Maksimenko A. N., Geometricheskie konstruktsii i slozhnost v kombinatornoy optimizatsii, LKI, Moscow, 2008, (in Russian).]</mixed-citation><mixed-citation xml:lang="en">Бондаренко В.А., Максименко А.Н., Геометрические конструкции и сложность в комбинаторной оптимизации, ЛКИ, М., 2008, 184 с.; [Bondarenko V.A., Maksimenko A. N., Geometricheskie konstruktsii i slozhnost v kombinatornoy optimizatsii, LKI, Moscow, 2008, (in Russian).]</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Бондаренко В.А., Николаев А.В., “Комбинаторно-геометрические свойства задачи о разрезе”, Доклады Академии наук, 452:2 (2013), 127–129; [Bondarenko V. A., Nikolaev A. V., “Combinatorial and Geometric Properties of the Max-Cut and Min-Cut Problems”, Doklady Mathematics, 88:2 (2013), 516–517.]</mixed-citation><mixed-citation xml:lang="en">Бондаренко В.А., Николаев А.В., “Комбинаторно-геометрические свойства задачи о разрезе”, Доклады Академии наук, 452:2 (2013), 127–129; [Bondarenko V. A., Nikolaev A. V., “Combinatorial and Geometric Properties of the Max-Cut and Min-Cut Problems”, Doklady Mathematics, 88:2 (2013), 516–517.]</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Бондаренко В.А., Николаев А.В., Шовгенов Д.А., “Полиэдральные графы задач об остовных деревьях при дополнительных ограничениях”, Моделирование и анализ информационных систем, 22:4 (2015), 453–463; [Bondarenko V.A., Nikolaev A. V., Shovgenov D. A., “1-Skeletons of the Spanning Tree Problems with Additional Constraints”, Modeling and Analysis of Information Systems, 22:4 (2015), 453– 463, (in Russian).]</mixed-citation><mixed-citation xml:lang="en">Бондаренко В.А., Николаев А.В., Шовгенов Д.А., “Полиэдральные графы задач об остовных деревьях при дополнительных ограничениях”, Моделирование и анализ информационных систем, 22:4 (2015), 453–463; [Bondarenko V.A., Nikolaev A. V., Shovgenov D. A., “1-Skeletons of the Spanning Tree Problems with Additional Constraints”, Modeling and Analysis of Information Systems, 22:4 (2015), 453– 463, (in Russian).]</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Максименко А.Н., “Комбинаторные свойства многогранника задачи о кратчайшем пути”, Ж. вычисл. матем. и матем. физ., 44:9 (2004), 1693–1696; [Maksimenko A.N., “Combinatorial properties of the polyhedron associated with the shortest path problem”, Comput. Math. Math. Phys., 88:2 (2013), 1611–1614.]</mixed-citation><mixed-citation xml:lang="en">Максименко А.Н., “Комбинаторные свойства многогранника задачи о кратчайшем пути”, Ж. вычисл. матем. и матем. физ., 44:9 (2004), 1693–1696; [Maksimenko A.N., “Combinatorial properties of the polyhedron associated with the shortest path problem”, Comput. Math. Math. Phys., 88:2 (2013), 1611–1614.]</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Apollonio N., Simeone B., “The maximum vertex coverage problem on bipartite graphs”, Discrete Applied Mathematics, 165 (2014), 37–48.</mixed-citation><mixed-citation xml:lang="en">Apollonio N., Simeone B., “The maximum vertex coverage problem on bipartite graphs”, Discrete Applied Mathematics, 165 (2014), 37–48.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Arbib C., Mosca R., “Polynomial algorithms for special cases of the balanced complete bipartite subgraph problem”, Journal of Combinatorial Mathematics and Combinatorial Computing, 39 (1999), 3–22.</mixed-citation><mixed-citation xml:lang="en">Arbib C., Mosca R., “Polynomial algorithms for special cases of the balanced complete bipartite subgraph problem”, Journal of Combinatorial Mathematics and Combinatorial Computing, 39 (1999), 3–22.</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Bondarenko V., Nikolaev A., “On Graphs of the Cone Decompositions for the Min-Cut and Max-Cut Problems”, International Journal of Mathematics and Mathematical Sciences, 2016 (2016), 6 pages, Article ID 7863650.</mixed-citation><mixed-citation xml:lang="en">Bondarenko V., Nikolaev A., “On Graphs of the Cone Decompositions for the Min-Cut and Max-Cut Problems”, International Journal of Mathematics and Mathematical Sciences, 2016 (2016), 6 pages, Article ID 7863650.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Cheng Y., Church G. M., “Biclustering of expression data”, Proceedings of the Eighth International Conference on Intelligent Systems for Molecular Biology, 2000, 93–103.</mixed-citation><mixed-citation xml:lang="en">Cheng Y., Church G. M., “Biclustering of expression data”, Proceedings of the Eighth International Conference on Intelligent Systems for Molecular Biology, 2000, 93–103.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Diestel R., Graph Theory, Springer-Verlag Berlin Heidelberg, 2010, 410 pp.</mixed-citation><mixed-citation xml:lang="en">Diestel R., Graph Theory, Springer-Verlag Berlin Heidelberg, 2010, 410 pp.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Feige U., Kogan S., Hardness of approximation of the Balanced Complete Bipartite Subgraph problem. Tech. Rep. MCS04-04, Dept. of Comp. Sci. and Appl. Math., The Weizmann Inst. of Science, 2004.</mixed-citation><mixed-citation xml:lang="en">Feige U., Kogan S., Hardness of approximation of the Balanced Complete Bipartite Subgraph problem. Tech. Rep. MCS04-04, Dept. of Comp. Sci. and Appl. Math., The Weizmann Inst. of Science, 2004.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Garey M. R., Johnson D. S., Computers and Intractability: A Guide to the Theory of NP- Completeness, W. H. Freeman &amp; Co., New York, NY, USA, 1979, 340 pp.</mixed-citation><mixed-citation xml:lang="en">Garey M. R., Johnson D. S., Computers and Intractability: A Guide to the Theory of NP- Completeness, W. H. Freeman &amp; Co., New York, NY, USA, 1979, 340 pp.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">GroЁtschel M., Lovasz L., Schrijver A., Geometric Algorithms and Combinatorial Optimization, Springer–Verlag Berlin Heidelberg, 1993, 362 pp.</mixed-citation><mixed-citation xml:lang="en">GroЁtschel M., Lovasz L., Schrijver A., Geometric Algorithms and Combinatorial Optimization, Springer–Verlag Berlin Heidelberg, 1993, 362 pp.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Johnson D. S., “The NP-completeness column: An ongoing guide”, Journal of Algorithms, 8:3 (1987), 438–448.</mixed-citation><mixed-citation xml:lang="en">Johnson D. S., “The NP-completeness column: An ongoing guide”, Journal of Algorithms, 8:3 (1987), 438–448.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Joret G., Vetta A., “Reducing the rank of a matroid”, Discrete Mathematics &amp; Theoretical Computer Science, 17:2 (2015), 143–156.</mixed-citation><mixed-citation xml:lang="en">Joret G., Vetta A., “Reducing the rank of a matroid”, Discrete Mathematics &amp; Theoretical Computer Science, 17:2 (2015), 143–156.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Hopcroft J. E., Karp R. M., “An n5/2 Algorithm for Maximum Matchings in Bipartite Graphs”, SIAM Journal on Computing, 2:4 (1973), 225–231.</mixed-citation><mixed-citation xml:lang="en">Hopcroft J. E., Karp R. M., “An n5/2 Algorithm for Maximum Matchings in Bipartite Graphs”, SIAM Journal on Computing, 2:4 (1973), 225–231.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Mubayi D., Tura`n G., “Finding bipartite subgraphs eﬃciently”, Information Processing Letters, 110:5 (2010), 174–177.</mixed-citation><mixed-citation xml:lang="en">Mubayi D., Tura`n G., “Finding bipartite subgraphs eﬃciently”, Information Processing Letters, 110:5 (2010), 174–177.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Ravi S. S., Lloyd E. L., “The complexity of near-optimal programmable logic array folding”, SIAM Journal on Computing, 17:4 (1988), 696–710.</mixed-citation><mixed-citation xml:lang="en">Ravi S. S., Lloyd E. L., “The complexity of near-optimal programmable logic array folding”, SIAM Journal on Computing, 17:4 (1988), 696–710.</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>
