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<article 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" xmlns:ali="http://www.niso.org/schemas/ali/1.0/" article-type="other" dtd-version="1.2" xml:lang="en"><front><journal-meta><journal-id journal-id-type="publisher-id">Discrete and Continuous Models and Applied Computational Science</journal-id><journal-title-group><journal-title xml:lang="en">Discrete and Continuous Models and Applied Computational Science</journal-title><trans-title-group xml:lang="ru"><trans-title>Discrete and Continuous Models and Applied Computational Science</trans-title></trans-title-group></journal-title-group><issn publication-format="print">2658-4670</issn><issn publication-format="electronic">2658-7149</issn><publisher><publisher-name xml:lang="en">Peoples' Friendship University of Russia named after Patrice Lumumba (RUDN University)</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="publisher-id">8694</article-id><article-categories><subj-group subj-group-type="toc-heading" xml:lang="en"><subject>Articles</subject></subj-group><subj-group subj-group-type="toc-heading" xml:lang="ru"><subject>Статьи</subject></subj-group><subj-group subj-group-type="article-type"><subject></subject></subj-group></article-categories><title-group><article-title xml:lang="en">Long RangeMemory Modeling and Estimation for Financial Time Series</article-title><trans-title-group xml:lang="ru"><trans-title>Моделирование и оценивание длинной памяти финансовых временных рядов</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Shchetinin</surname><given-names>Eu Yu</given-names></name><name xml:lang="ru"><surname>Щетинин</surname><given-names>Евгений Юрьевич</given-names></name></name-alternatives><bio xml:lang="en">Кафедра прикладной математики; ГОУ ВПО МГТУ «Станкин»; Moscow State Technology University STANKIN</bio><bio xml:lang="ru">Кафедра прикладной математики; ГОУ ВПО МГТУ «Станкин»</bio><email>Riviera-molto@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Prudnikov</surname><given-names>Yu G</given-names></name><name xml:lang="ru"><surname>Прудников</surname><given-names>Юрий Георгиевич</given-names></name></name-alternatives><bio xml:lang="en">Кафедра прикладной математики; ГОУ ВПО МГТУ «Станкин»; Moscow State Technology University STANKIN</bio><bio xml:lang="ru">Кафедра прикладной математики; ГОУ ВПО МГТУ «Станкин»</bio><email>creolis@mail.ru</email><xref ref-type="aff" rid="aff1"/></contrib><contrib contrib-type="author"><name-alternatives><name xml:lang="en"><surname>Markov</surname><given-names>P N</given-names></name><name xml:lang="ru"><surname>Марков</surname><given-names>Павел Николаевич</given-names></name></name-alternatives><bio xml:lang="en">Кафедра прикладной математики; ГОУ ВПО МГТУ «Станкин»; Moscow State Technology University STANKIN</bio><bio xml:lang="ru">Кафедра прикладной математики; ГОУ ВПО МГТУ «Станкин»</bio><email>-</email><xref ref-type="aff" rid="aff1"/></contrib></contrib-group><aff-alternatives id="aff1"><aff><institution xml:lang="en">Moscow State Technology University STANKIN</institution></aff><aff><institution xml:lang="ru">ГОУ ВПО МГТУ «Станкин»</institution></aff></aff-alternatives><pub-date date-type="pub" iso-8601-date="2011-01-15" publication-format="electronic"><day>15</day><month>01</month><year>2011</year></pub-date><issue>1</issue><issue-title xml:lang="en">NO1 (2011)</issue-title><issue-title xml:lang="ru">№1 (2011)</issue-title><fpage>98</fpage><lpage>106</lpage><history><date date-type="received" iso-8601-date="2016-09-08"><day>08</day><month>09</month><year>2016</year></date></history><permissions><copyright-statement xml:lang="ru">Copyright ©; 2011, Щетинин Е.Ю., Прудников Ю.Г., Марков П.Н.</copyright-statement><copyright-year>2011</copyright-year><copyright-holder xml:lang="ru">Щетинин Е.Ю., Прудников Ю.Г., Марков П.Н.</copyright-holder><ali:free_to_read xmlns:ali="http://www.niso.org/schemas/ali/1.0/"/><license><ali:license_ref xmlns:ali="http://www.niso.org/schemas/ali/1.0/">http://creativecommons.org/licenses/by/4.0</ali:license_ref></license></permissions><self-uri xlink:href="https://journals.rudn.ru/miph/article/view/8694">https://journals.rudn.ru/miph/article/view/8694</self-uri><abstract xml:lang="en">This paper deals with several aspects in time series modeling concerning estimation and tests of long memory, fractional integration, and cointegration, as well as applications to financial data. The aim of the paper is to develop new and improved estimation and testing techniques, in particular to extend existing work concerning fractional processes and also to introduce new areas of application. The formulation allows the widely used fractional autoregressive integrated moving average ARFIMA models and our asymptotic results provide a theoretical justification of the findings in simulations that the local Whittle estimator is robust to deterministic polynomial trends. Finally, we explore the existence of long memory in some financial time series and conclude using a novel approach in their exploration.</abstract><trans-abstract xml:lang="ru">В настоящей работе исследованы свойства длинной памяти временных рядов стоимостных показателей финансовых активов. Для моделирования таких процессов нами использованы модели авторегрессии дробно-интегрированного скользящего среднего, являющиеся наиболее успешными среди всех подобных моделей. В работе проведён обзор методов оценивания параметров таких моделей, дан анализ их основных достоинств, выделены их недостатки и предложен новый метод, позволяющий устойчиво оценивать параметр длинной памяти для нестационарных рядов, содержащих полиномиальный тренд. В работе исследованы временные ряды стоимостных показателей некоторых финансовых активов и получены количественные оценки показателя их длинной памяти.</trans-abstract><kwd-group xml:lang="en"><kwd>long memory</kwd><kwd>fractionally integrated autoregression models</kwd><kwd>periodogram</kwd><kwd>Whittle method</kwd></kwd-group><kwd-group xml:lang="ru"><kwd>длинная память</kwd><kwd>дробно-интегрированные процессы ARFIMA</kwd><kwd>периодограмма</kwd><kwd>метод Уиттла</kwd></kwd-group></article-meta></front><body></body><back><ref-list><ref id="B1"><label>1.</label><mixed-citation>Hosking J. 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