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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">10.22405/2226-8383-2021-22-1-67-75</article-id><article-id custom-type="elpub" pub-id-type="custom">cheb-932</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>Замечание о теореме о среднем значении модуля L-функции Дирихле в критической полосе</article-title><trans-title-group xml:lang="en"><trans-title>The remark on the mean value theorem for the absolute value of Dirichlet L-function in the critical strip</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>Архипова</surname><given-names>Людмила Геннадьевна</given-names></name><name name-style="western" xml:lang="en"><surname>Arkhipova</surname><given-names>Lyudmila Gennad’evna</given-names></name></name-alternatives><bio xml:lang="ru"><p>кандидат физико-математических наук</p></bio><bio xml:lang="en"><p>сandidate of physical and mathematical sciences</p></bio><email xlink:type="simple">arhipova@mi-ras.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Чубариков</surname><given-names>Владимир Николаевич</given-names></name><name name-style="western" xml:lang="en"><surname>Chubarikov</surname><given-names>Vladimir Nikolaevich</given-names></name></name-alternatives><bio xml:lang="ru"><p>доктор физико-математических наук, профессор</p></bio><bio xml:lang="en"><p>doctor of physical and mathematical sciences, professor</p></bio><email xlink:type="simple">chubarik2009@live.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Московский государственный университет им. М. В. Ломоносова</institution><country>Россия</country></aff><aff xml:lang="en"><institution>M. V. Lomonosov Moscow State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2021</year></pub-date><pub-date pub-type="epub"><day>06</day><month>04</month><year>2021</year></pub-date><volume>22</volume><issue>1</issue><fpage>67</fpage><lpage>75</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Архипова Л.Г., Чубариков В.Н., 2021</copyright-statement><copyright-year>2021</copyright-year><copyright-holder xml:lang="ru">Архипова Л.Г., Чубариков В.Н.</copyright-holder><copyright-holder xml:lang="en">Arkhipova L.G., Chubarikov V.N.</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/932">https://www.chebsbornik.ru/jour/article/view/932</self-uri><abstract><p>В статье продолжены исследования по обобщению и уточнению результата Р. Т. Турганалиева по выводу асимптотической формулы для среднего значения дзета-функции Римана в критической полосе с остаточным членом, имеющим степенное понижение. Нами найдена асимптотика среднего значения L-функции Дирихле в критической полосе, которая уточняет теорему Р. Т. Турганалиева о дзета-функции при всех значениях действительной части $$(1/2 &lt; Re 𝑠 ≤ 1)$$. Этот результат получен за счет другого использования оценок тригонометрических сумм на основе второй производной в экспоненте</p></abstract><trans-abstract xml:lang="en"><p>We continue our researches concerning the generalization and improvement of R.T.Turganaliev’s result that states an asymptotic formula for the mean value of the Riemann zeta function in the critical strip with power factor saving in the remainder term.We find an asymptotic for the mean value of Dirichlet L-function in the critical strip. This assertion improves R.T.Turganaliev’s theorem for zeta-function in the whole interval $$(1/2 &lt; Re 𝑠 ≤ 1)$$. Our result is based on the special use of the estimation of exponential sums by second derivative test.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>характеры Дирихле</kwd><kwd>функции Дирихле</kwd><kwd>дзетовая сумма</kwd><kwd>скрученная с характером Дирихле</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Dirichlet’s characters</kwd><kwd>Dirichlet’s functions</kwd><kwd>the zeta-sum twisted together with the Dirichlet’s character</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">Виноградов И. М. Особые варианты метода тригонометрических сумм. — М.: Физматлит. 1976, 120 с.</mixed-citation><mixed-citation xml:lang="en">Vinogradov I. M. 1976, “Special variants of the method of trigonometric sums” - - - M.: Fizmatlit. 120 p.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Виноградов И. М. 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