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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-1096</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>Построение приближений бисимуляции в односчетчиковых сетях</article-title><trans-title-group xml:lang="en"><trans-title>Approximating Bisimulation in One-counter Nets</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>Башкин</surname><given-names>Владимир Анатольевич</given-names></name><name name-style="western" xml:lang="en"><surname>Bashkin</surname><given-names>V. A.</given-names></name></name-alternatives><email xlink:type="simple">bas@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>12</month><year>2011</year></pub-date><volume>18</volume><issue>4</issue><fpage>33</fpage><lpage>44</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Башкин В.А., 2011</copyright-statement><copyright-year>2011</copyright-year><copyright-holder xml:lang="ru">Башкин В.А.</copyright-holder><copyright-holder xml:lang="en">Bashkin V.A.</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/1096">https://www.mais-journal.ru/jour/article/view/1096</self-uri><abstract><p>Односчетчиковые сети представляют собой конечные автоматы с дополнительным целочисленным неотрицательным счетчиком. Переход управляющего автомата увеличивает или уменьшает значение счетчика, при этом уменьшение возможно только в том случае, когда результат будет неотрицательным; проверка на ноль отсутствует. Односчетчиковые сети эквивалентны по выразительной мощности сетям Петри с не более чем одной неограниченной позицией, а также магазинным автоматам с односимвольным стековым алфавитом.
В работе представлен метод приближения наибольшей бисимуляции в односчетчиковой сети, основанный на использовании однопериодической символьной арифметики и понятия расслоенной бисимуляции.</p></abstract><trans-abstract xml:lang="en"><p>One-counter nets are finite-state machines operating on a variable (counter) which ranges over the natural numbers. Every transition can increase or decrease the value of the counter (the decrease is possible only if the result is non-negative, hence zero-testing is not allowed). The class of one-counter nets is equivalent to the class of Petri nets with one unbounded place, and to the class of pushdown automata where the stack alphabet contains one symbol. We present a specific method of approximation of the largest bisimulation of a one-counter net, based on the single-periodic arithmetics and a notion of stratified bisimulation.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>односчетчиковые сети</kwd><kwd>сети Петри</kwd><kwd>бисимуляция</kwd><kwd>однопериодический базис</kwd></kwd-group><kwd-group xml:lang="en"><kwd>one-counter nets</kwd><kwd>Petri nets</kwd><kwd>bisimulation</kwd><kwd>single-periodic base</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">Башкин В.А. Верификация на основе моделей с одним неограниченным счетчиком // Информационные системы и технологии. 2010. № 4(60). С. 5-12.</mixed-citation><mixed-citation xml:lang="en">Башкин В.А. Верификация на основе моделей с одним неограниченным счетчиком // Информационные системы и технологии. 2010. № 4(60). 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