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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="en"><front><journal-meta><journal-id journal-id-type="publisher-id">chemicallytech</journal-id><journal-title-group><journal-title xml:lang="en">Fine Chemical Technologies</journal-title><trans-title-group xml:lang="ru"><trans-title>Тонкие химические технологии</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2410-6593</issn><issn pub-type="epub">2686-7575</issn><publisher><publisher-name>MIREA – Russian Technological University (RTU MIREA).</publisher-name></publisher></journal-meta><article-meta><article-id custom-type="elpub" pub-id-type="custom">chemicallytech-741</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="en"><subject>MATHEMATICAL METHODS AND INFORMATION SYSTEMS IN CHEMICAL TECHNOLOGY</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>МАТЕМАТИЧЕСКИЕ МЕТОДЫ И ИНФОРМАЦИОННЫЕ СИСТЕМЫ В ХИМИЧЕСКОЙ ТЕХНОЛОГИИ</subject></subj-group></article-categories><title-group><article-title>The logistic map and the birth of period-3 cycle</article-title><trans-title-group xml:lang="ru"><trans-title></trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Toro</surname><given-names>Luis Alberto</given-names></name></name-alternatives><email xlink:type="simple">latoroc@unal.edu.co</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Cardona</surname><given-names>Carlos Ariel</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="western" xml:lang="en"><surname>Pisarenko</surname><given-names>Yu. A.</given-names></name></name-alternatives><email xlink:type="simple">noemail@neicon.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff xml:lang="en" id="aff-1"><institution>Instituto de Biotecnología y Agroindustria, Manizales</institution><country>Russian Federation</country></aff><aff xml:lang="en" id="aff-2"><institution>M.V. Lomonosov Moscow State University of Fine Chemical Technologies</institution><country>Russian Federation</country></aff><pub-date pub-type="collection"><year>2012</year></pub-date><pub-date pub-type="epub"><day>28</day><month>06</month><year>2012</year></pub-date><volume>7</volume><issue>3</issue><fpage>71</fpage><lpage>76</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Toro L.A., Cardona C.A., Pisarenko Y.A., 2012</copyright-statement><copyright-year>2012</copyright-year><copyright-holder xml:lang="ru">Toro L.A., Cardona C.A., Pisarenko Y.A.</copyright-holder><copyright-holder xml:lang="en">Toro L.A., Cardona C.A., Pisarenko Y.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.finechem-mirea.ru/jour/article/view/741">https://www.finechem-mirea.ru/jour/article/view/741</self-uri><abstract/><kwd-group xml:lang="en"><kwd>attractor</kwd><kwd>bifurcation diagram</kwd><kwd>dynamical systems</kwd><kwd>chaos</kwd><kwd>fixed points</kwd><kwd>logistic map</kwd><kwd>maps</kwd><kwd>symmetric polynomials</kwd><kwd>tangent condition</kwd><kwd>vector fields</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">Campos Diógenes Romero, José Fernando Isaza Delgado. 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