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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 pub-id-type="doi">10.18255/1818-1015-2019-4-572-582</article-id><article-id custom-type="elpub" pub-id-type="custom">mais-1277</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>Computer System Organization</subject></subj-group></article-categories><title-group><article-title>Особенности вычислительной реализации алгоритма оценки ляпуновских показателей систем с запаздыванием</article-title><trans-title-group xml:lang="en"><trans-title>Features of the Computational Implementation of the Algorithm for Estimating the Lyapunov Exponents of Systems with Delay</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-0512-6986</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Горюнов</surname><given-names>Владимир Евгеньевич</given-names></name><name name-style="western" xml:lang="en"><surname>Goryunov</surname><given-names>Vladimir E.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант</p></bio><bio xml:lang="en"><p>postgraduate student</p></bio><email xlink:type="simple">salkar@ya.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>2019</year></pub-date><pub-date pub-type="epub"><day>13</day><month>12</month><year>2019</year></pub-date><volume>26</volume><issue>4</issue><fpage>572</fpage><lpage>582</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Горюнов В.Е., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Горюнов В.Е.</copyright-holder><copyright-holder xml:lang="en">Goryunov V.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://www.mais-journal.ru/jour/article/view/1277">https://www.mais-journal.ru/jour/article/view/1277</self-uri><abstract><p>Рассматривается вычислительная реализация алгоритма оценки спектра показателей Ляпунова для систем дифференциальных уравнений с запаздывающими аргументами. Учитывая, что для таких систем, а также для краевых задач не удается доказать известную теорему Оселедеца, которая позволяет эффективно вычислять искомые величины, приходится говорить лишь об оценках характеристических показателей, в каком-то смысле близких к ляпуновским. В данной работе предложены две методики обработки решений линеаризованных на аттракторе систем, одна из которых основана на базисе импульсных функций, а другая — на базисе тригонометрических функций. Продемонстрирована гибкость применения указанных алгоритмов в случае квазиустойчивых структур, когда несколько показателей Ляпунова близки к нулю. Разработанные методы тестируются на логистическом уравнении с запаздыванием. Полученные результаты иллюстрируют “близость” оцениваемых характеристик и показателей Ляпунова.</p></abstract><trans-abstract xml:lang="en"><p>We consider the computational implementation of the algorithm for Lyapunov exponents spectrum numerical estimation for delay differential equations. It is known that for such systems, as well as for boundary value problems, it is not possible to prove the well-known Oseledets theorem which allows us to calculate the required parameters very efficiently. Therefore, we can only talk about the estimates of the characteristics in some sense close to the Lyapunov exponents. In this paper, we propose two methods of linearized systems solutions processing. One of them is based on a set of impulse functions, and the other is based on a set of trigonometric functions. We show the usage flexibility of these algorithms in the case of quasi-stable structures when several Lyapunov exponents are close to zero. The developed methods are tested on a logistic equation with a delay, and these tests illustrate the “proximity” of the obtained numerical characteristics and Lyapunov exponents.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>спектр показателей Ляпунова</kwd><kwd>динамическая система с запаздыванием</kwd><kwd>численный алгоритм</kwd><kwd>уравнение Хатчинсона</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Lyapunov exponents spectrum</kwd><kwd>dynamical system with delay</kwd><kwd>numerical algorithm</kwd><kwd>Hutchinson equation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Исследование выполнено при финансовой поддержке РФФИ в рамках научного проекта № 18-29-10055.</funding-statement><funding-statement xml:lang="en">The reported study was funded by RFBR according to the research project № 18-29-10055.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Купцов П. В., “Вычисление показателей Ляпунова для распределённых систем: преимущества и недостатки различных численных методов”, Изв. вузов “ПНД”, 18:5 (2010), 93–112;</mixed-citation><mixed-citation xml:lang="en">Kuptsov P. V., “Computation of Lyapunov Exponents for Spatially Extended Systems: Advantages and Limitations of Various Numerical Methods”, Izv. VUZ. Applied Nonlinear Dynamics, 18:5 (2010), 93–112, (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Оселедец В. И., “Мультипликативная эргодическая теорема. Характеристические показатели Ляпунова динамических систем”, Тр. ММО, 19, 1968, 179–210;</mixed-citation><mixed-citation xml:lang="en">Oseledets V. I., “A multiplicative ergodic theorem. Lyapunov characteristic numbers for dynamical systems”, Trans. Moscow Math. Soc., 19 (1968), 197–231.</mixed-citation></citation-alternatives></ref><ref id="cit3"><label>3</label><citation-alternatives><mixed-citation xml:lang="ru">Былов Б. Ф., Виноград Р. Э., Гробман Д. М., Немыцкий В. В., Теория показателей Ляпунова и ее приложения к вопросам устойчивости, Наука, 1966;</mixed-citation><mixed-citation xml:lang="en">Bylov B. F., Vinograd R. E., Grobman D. M., Nemytskiy V. V., Teoriya pokazateley Lyapunova i ee prilozheniya k voprosam ustoychivosti, Nauka, 1966, (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit4"><label>4</label><citation-alternatives><mixed-citation xml:lang="ru">Балякин А. А., Рыскин Н. М., “Особенности расчета спектров показателей Ляпунова в распределенных системах с запаздывающей обратной связью”, Изв. вузов “ПНД”, 15:6 (2007), 3–21;</mixed-citation><mixed-citation xml:lang="en">Balyakin A. A., Ryskin N. M., “Peculiarities of Calculation of the Lyapunov Exponents Set in Distributed Self-Oscillated Systems with Delayed Feedback”, Izv. VUZ. Applied nonlinear dynamics, 15:6 (2007), 3–21, (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit5"><label>5</label><citation-alternatives><mixed-citation xml:lang="ru">Балякин А. А., Блохина Е. В., “Вычисление спектра показателей Ляпунова для распределенных систем радиофизической природы”, Изв. вузов “ПНД”, 16:2 (2008), 87–110;</mixed-citation><mixed-citation xml:lang="en">Balyakin A. A., Blokhina E. V., “Peculiarities of Calculation of the Lyapunov Exponents Set in Distributed Self-Oscillated Systems with Delayed Feedback”, Izv. VUZ. Applied Nonlinear Dynamics, 16:2 (2008), 87–110, (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit6"><label>6</label><citation-alternatives><mixed-citation xml:lang="ru">Колоскова А. Д., Москаленко О. И., Короновский А. А., “Метод расчета спектра показателей Ляпунова для систем с запаздыванием”, Письма в ЖТФ, 44:9 (2018), 19–25;</mixed-citation><mixed-citation xml:lang="en">Koloskova A. D., Moskalenko O. I., Koronovskii A. A., “A Method for Calculating the Spectrum of Lyapunov Exponents for Delay Systems”, Technical Physics Letters, 44:5 (2018), 374–377.</mixed-citation></citation-alternatives></ref><ref id="cit7"><label>7</label><citation-alternatives><mixed-citation xml:lang="ru">Алешин С. В., “Оценка инвариантных числовых показателей аттракторов систем дифференциальных уравнений с запаздыванием”, Вычислит. технологии в естеств. науках: методы суперкомп. моделир., 2014, 10–17;</mixed-citation><mixed-citation xml:lang="en">Aleshin S. V., “The Numerical Evaluation of Attractors Exponents of Delay Differential Equations System”, Comp. Technologies in Sciences. Methods of Simul. on Supercomputers, 2014, 10–17, (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit8"><label>8</label><citation-alternatives><mixed-citation xml:lang="ru">Farmer J. D., “Chaotic Attractors of an Infinite-Dimensional Dynamical System”, Physica D: Nonlinear Phenomena, 4:3 (1982), 366–393.</mixed-citation><mixed-citation xml:lang="en">Farmer J. D., “Chaotic Attractors of an Infinite-Dimensional Dynamical System”, Physica D: Nonlinear Phenomena, 4:3 (1982), 366–393.</mixed-citation></citation-alternatives></ref><ref id="cit9"><label>9</label><citation-alternatives><mixed-citation xml:lang="ru">Hairer E., Nørsett S. P., Wanner G., Solving Ordinary Differential Equations I: Nonstiff Problems, Springer-Verlag Berlin Heidelberg, 2008.</mixed-citation><mixed-citation xml:lang="en">Hairer E., Nørsett S. P., Wanner G., Solving Ordinary Differential Equations I: Nonstiff Problems, Springer-Verlag Berlin Heidelberg, 2008.</mixed-citation></citation-alternatives></ref><ref id="cit10"><label>10</label><citation-alternatives><mixed-citation xml:lang="ru">Cheney W., Kincaid D., Linear Algebra: Theory and Applications, Sudbury, Mass: Jones and Bartlett Publishers, 2009.</mixed-citation><mixed-citation xml:lang="en">Cheney W., Kincaid D., Linear Algebra: Theory and Applications, Sudbury, Mass: Jones and Bartlett Publishers, 2009.</mixed-citation></citation-alternatives></ref><ref id="cit11"><label>11</label><citation-alternatives><mixed-citation xml:lang="ru">Нуссбаумер Г., Быстрое преобразование Фурье и алгоритмы вычисления сверток, Радио и связь, 1985;</mixed-citation><mixed-citation xml:lang="en">Nussbaumer H. J., Fast Fourier Transform and Convolution Algorithms, Springer-Verlag Berlin Heidelberg, 1981.</mixed-citation></citation-alternatives></ref><ref id="cit12"><label>12</label><citation-alternatives><mixed-citation xml:lang="ru">Глызин Д. С., Глызин С. Д., Колесов А.Ю., Розов Н. Х., “Метод динамической перенормировки для нахождения максимального ляпуновского показателя хаотического аттрактора”, Дифференц. уравнения, 41:2 (2005), 268–273;</mixed-citation><mixed-citation xml:lang="en">Glyzin D. S., Glyzin S. D., Kolesov A. Yu., Rozov N. Kh., “The Dynamic Renormalization Method for Finding the Maximum Lyapunov Exponent of a Chaotic Attractor”, Differ. Equ., 41:2 (2005), 284–289.</mixed-citation></citation-alternatives></ref><ref id="cit13"><label>13</label><citation-alternatives><mixed-citation xml:lang="ru">Aleshin S. V., Glyzin D. S., Glyzin S. D., Goryunov V. E., “Estimation of Lyapunov Exponents for Quasi-Stable Attractors of Dynamical Systems with Time Delay.”, Journal of Physics: Conference Series, 1163 (2019), 012045.</mixed-citation><mixed-citation xml:lang="en">Aleshin S. V., Glyzin D. S., Glyzin S. D., Goryunov V. E., “Estimation of Lyapunov Exponents for Quasi-Stable Attractors of Dynamical Systems with Time Delay.”, Journal of Physics: Conference Series, 1163 (2019), 012045.</mixed-citation></citation-alternatives></ref><ref id="cit14"><label>14</label><citation-alternatives><mixed-citation xml:lang="ru">Kuptsov P. V., Kuznetsov S. P., “Violation of Hyperbolicity in a Diffusive Medium with Local Hyperbolic Attractor”, Phys. Rev. E., 80 (2009), 01620513.</mixed-citation><mixed-citation xml:lang="en">Kuptsov P. V., Kuznetsov S. P., “Violation of Hyperbolicity in a Diffusive Medium with Local Hyperbolic Attractor”, Phys. Rev. E., 80 (2009), 01620513.</mixed-citation></citation-alternatives></ref><ref id="cit15"><label>15</label><citation-alternatives><mixed-citation xml:lang="ru">Hutchinson G. E., “Circular Causal Systems in Ecology”, Ann. N.Y. Acad. Sci., 50 (1948), 221–246.</mixed-citation><mixed-citation xml:lang="en">Hutchinson G. E., “Circular Causal Systems in Ecology”, Ann. N.Y. Acad. Sci., 50 (1948), 221–246.</mixed-citation></citation-alternatives></ref><ref id="cit16"><label>16</label><citation-alternatives><mixed-citation xml:lang="ru">Hale J., Theory of Functional Differential Equations, Springer-Verlag New York, 1977.</mixed-citation><mixed-citation xml:lang="en">Hale J., Theory of Functional Differential Equations, Springer-Verlag New York, 1977.</mixed-citation></citation-alternatives></ref><ref id="cit17"><label>17</label><citation-alternatives><mixed-citation xml:lang="ru">Wright E. M., “A Non-Linear Difference-Differential Equation”, J. Reine Angew. Math., 194 (1955), 66–87. https://www.mais-journal.ru/jour/editor/submissionEngCit/1277</mixed-citation><mixed-citation xml:lang="en">Wright E. M., “A Non-Linear Difference-Differential Equation”, J. Reine Angew. Math., 194 (1955), 66–87.</mixed-citation></citation-alternatives></ref><ref id="cit18"><label>18</label><citation-alternatives><mixed-citation xml:lang="ru">Kakutani S., Markus L., “On the Nonlinear Difference-Differential Equation y'(t) = (A — By(t — t))y(t)”, Contributions to the Theory of Nonlinear Oscillations, 4 (1958), 1-18.</mixed-citation><mixed-citation xml:lang="en">Kakutani S., Markus L., “On the Nonlinear Difference-Differential Equation y'(t) = (A — By(t — t))y(t)”, Contributions to the Theory of Nonlinear Oscillations, 4 (1958), 1-18.</mixed-citation></citation-alternatives></ref><ref id="cit19"><label>19</label><citation-alternatives><mixed-citation xml:lang="ru">Кащенко С. А., “К вопросу об оценке в пространстве параметров области глобальной устойчивости уравнения Хатчинсона”, Нелинейные колебания в задачах экологии. Ярославль: ЯрГУ, 1985, 55–62;</mixed-citation><mixed-citation xml:lang="en">Kaschenko S. A., “K voprosu ob otsenke v prostranstve parametrov oblasti global’noy ustoychivosti uravneniya Khatchinsona”, Nelineynye kolebaniya v zadachakh ekologii. Yaroslavl: YarGU, 1985, 55–62, (in Russian).</mixed-citation></citation-alternatives></ref><ref id="cit20"><label>20</label><citation-alternatives><mixed-citation xml:lang="ru">Кащенко С. А., “Асимптотика решений обобщённого уравнения Хатчинсона”, Модел. и анализ информ. систем, 19:3 (2012), 32–62.</mixed-citation><mixed-citation xml:lang="en">Kaschenko S. A., “Asymptotics of Solutions of the Generalized Hutchinson’s Equation”, Modeling and Analysis of Information Systems, 19:3 (2012), 32–62, (in Russian).</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>
