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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">matatecs</journal-id><journal-title-group><journal-title xml:lang="ru">Математика и теоретические компьютерные науки</journal-title><trans-title-group xml:lang="en"><trans-title>Mathematics and Theoretical Computer Science</trans-title></trans-title-group></journal-title-group><issn pub-type="epub">2949-3919</issn><publisher><publisher-name>Казанский (Приволжский) федеральный университет</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.26907/2949-3919.2026.2.76-85</article-id><article-id custom-type="elpub" pub-id-type="custom">matatecs-110</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></article-categories><title-group><article-title>Применение полиэлементных уравнений для функций, аналитических в плоскости с разрезом, к интерполяционным задачам для целых функций класса А</article-title><trans-title-group xml:lang="en"><trans-title>Application of polyelement equations for functions analytic in a cut plane to interpolation problems for entire functions of class A</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>Гарифьянов</surname><given-names>Ф. Н.</given-names></name><name name-style="western" xml:lang="en"><surname>Garif’yanov</surname><given-names>F. N.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Фархат Нургаязович Гарифьянов,</p><p>ул. Красносельская, д. 51, г. Казань, 420066.</p></bio><bio xml:lang="en"><p>Farhat Nurgayazovich Garif’yanov,</p><p>51, Krasnoselskaya str., Kazan 420066.</p></bio><email xlink:type="simple">f.garifyanov@mail.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>Гиззатуллина</surname><given-names>Э. И.</given-names></name><name name-style="western" xml:lang="en"><surname>Gizzatullina</surname><given-names>E. I.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Эльвира Ильхамовна Гиззатуллина,</p><p>ул. Красносельская, д. 51, г. Казань, 420066.</p></bio><bio xml:lang="en"><p>Elvira Ilhamovna Gizzatullina,</p><p>51, Krasnoselskaya str., Kazan 420066.</p></bio><email xlink:type="simple">hasanovae19966@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Казанский государственный энергетический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan State Power Engineering University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Казанский государственный энергетический университет; УПО «КОЛЛЕДЖ КИУ»</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Kazan State Power Engineering University; UPO «KIU College»</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2026</year></pub-date><pub-date pub-type="epub"><day>29</day><month>07</month><year>2026</year></pub-date><volume>4</volume><issue>2</issue><fpage>76</fpage><lpage>85</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Гарифьянов Ф.Н., Гиззатуллина Э.И., 2026</copyright-statement><copyright-year>2026</copyright-year><copyright-holder xml:lang="ru">Гарифьянов Ф.Н., Гиззатуллина Э.И.</copyright-holder><copyright-holder xml:lang="en">Garif’yanov F.N., Gizzatullina E.I.</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://matatecs.elpub.ru/jour/article/view/110">https://matatecs.elpub.ru/jour/article/view/110</self-uri><abstract><p>Исследуются линейные полиэлементные уравнения для функций, аналитических в плоскости с симметричным разрезом по мнимой оси и исчезающих на бесконечности. Решение ищется в классе функций, представимых интегралом типа Коши по данным разрезам с четной или нечетной плотностью. Проводится регуляризация этих уравнений и исследование вопроса об ее равносильности. При этом существенно используется теория эллиптических функций. Полученные результаты применимы к исследованию интерполяционных задач для целых функций экспоненциального типа из класса A.</p></abstract><trans-abstract xml:lang="en"><p>Linear polyelement equations are investigated for functions analytic in a plane with a symmetric cut along the imaginary axis and vanishing at infinity. The solution is sought in the class of functions representable by a Cauchy-type integral over given cuts with an even or odd density. The regularization of these equations and the question of its equivalence are studied. In this process, the theory of elliptic functions is substantially used. The obtained results are applicable to the study of interpolation problems for entire functions of exponential type from class A.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>полиэлементные уравнения</kwd><kwd>метод регуляризации</kwd><kwd>эллиптические функции</kwd><kwd>целые функции класса A.</kwd></kwd-group><kwd-group xml:lang="en"><kwd>polyelement equations</kwd><kwd>regularization method</kwd><kwd>elliptic functions</kwd><kwd>entire functions of class A</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">Б.Я.Левин, Распределение корней целых функций, ГИТТЛ, М., 1956.</mixed-citation><mixed-citation xml:lang="en">B.Ja.Levin, Distribution of zeros of entire functions, AMS, Providence, RI, 1980.</mixed-citation></citation-alternatives></ref><ref id="cit2"><label>2</label><citation-alternatives><mixed-citation xml:lang="ru">Ф.Н.Гарифьянов, Е.В.Стрежнева, Интерполяционные задачи для целых функций, индуцированные правильным шестиугольником, Сиб. матем. журн. 59 (1), 78–85 (2018). https://doi.org/10.17377/smzh.2018.59.107</mixed-citation><mixed-citation xml:lang="en">F.N.Garif’yanov, E.V.Strezhneva, Interpolation problems for entire functions induced by regular hexagons, Siberian Math. 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