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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">cheb</journal-id><journal-title-group><journal-title xml:lang="ru">Чебышевский сборник</journal-title><trans-title-group xml:lang="en"><trans-title>Chebyshevskii Sbornik</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2226-8383</issn><publisher><publisher-name>Tula State Lev Tolstoy  Pedagogical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.22405/2226-8383-2019-20-1-195-201</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-622</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>Статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Article</subject></subj-group></article-categories><title-group><article-title>О многочленах Нюмена без корней на единичном круге</article-title><trans-title-group xml:lang="en"><trans-title>On Newman polynomials without roots on the unit circle</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>Дубицкас</surname><given-names>Артурас</given-names></name><name name-style="western" xml:lang="en"><surname>Dubickas</surname><given-names>Arturas</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор математических наук, ведущий научный сотрудник</p></bio><bio xml:lang="en"><p>habilitated doctor of mathematics, research professor</p></bio><email xlink:type="simple">arturas.dubickas@mif.vu.lt</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Институт Математики Вильнюсского университета, г. Вильнюс (Литва)</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Institute of Mathematics, Vilnius University, Vilnius (Lithuania)</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>23</day><month>01</month><year>2020</year></pub-date><volume>20</volume><issue>1</issue><fpage>195</fpage><lpage>201</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Дубицкас А., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Дубицкас А.</copyright-holder><copyright-holder xml:lang="en">Dubickas 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.chebsbornik.ru/jour/article/view/622">https://www.chebsbornik.ru/jour/article/view/622</self-uri><abstract><p>В настоящей заметке мы получим необходимое и достаточное условие на тройку неотрицательных целых чисел a &lt; b &lt; c при выполнении которого многочлен Нюмена $$\sum_{j=0}^a x^j + \sum_{j=b}^c x^j$$ имеет корень на единичном круге. Изпользуя это условие мы докажем, что для каждого $$d \geq 3$$ существует такое целое положительное число n &gt; d, что многочлен Нюмена $$1+x+\dots+x^{d-2}+x^n$$ длины d не имеет корней на единичном круге.</p></abstract><trans-abstract xml:lang="en"><p>In this note we give a necessary and sufficient condition on the triplet of nonnegative integers a &lt; b &lt; c for which the Newman polynomial $$\sum_{j=0}^a x^j + \sum_{j=b}^c x^j$$ has a root on the unit circle. From this condition we derive that for each $$d \geq 3$$ there is a positive integer $$n&gt;d$$ such that the Newman polynomial $$1+x+\dots+x^{d-2}+x^n$$ of length d has no roots on the unit circle.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>многочлен Нюмена</kwd><kwd>корень из единицы</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Newman polynomial</kwd><kwd>root of unity</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">Boyd D. W. Large Newman polynomials // in: Diophantine analysis (Kensigton, 1985), London Math. Soc. Lecture Note Ser. Vol.109, Cambridge Univ. Press, Cambridge, 1986. P. 159–170.</mixed-citation><mixed-citation xml:lang="en">Boyd, D. W. 1986, “Large Newman polynomials“, in: Diophantine analysis (Kensigton, 1985), London Math. Soc. Lecture Note Ser., vol.109, Cambridge Univ. 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