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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">mais</journal-id><journal-title-group><journal-title xml:lang="ru">Моделирование и анализ информационных систем</journal-title><trans-title-group xml:lang="en"><trans-title>Modeling and Analysis of Information Systems</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">1818-1015</issn><issn pub-type="epub">2313-5417</issn><publisher><publisher-name>Yaroslavl State University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.18255/1818-1015-2018-3-312-322</article-id><article-id custom-type="elpub" pub-id-type="custom">mais-689</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>Оригинальные статьи</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>Articles</subject></subj-group></article-categories><title-group><article-title>О гипотезах Ходжа, Тэйта и Мамфорда–Тэйта для расслоенных произведений семейств регулярных поверхностей с геометрическим родом 1</article-title><trans-title-group xml:lang="en"><trans-title>On the Hodge, Tate and Mumford-Tate Conjectures for Fibre Products of Families of Regular Surfaces with Geometric Genus 1</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><contrib-id contrib-id-type="orcid">https://orcid.org/0000-0002-6742-8453</contrib-id><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Орешкина (Никольская)</surname><given-names>Ольга Владимировна</given-names></name><name name-style="western" xml:lang="en"><surname>Oreshkina (Nikol’skaya)</surname><given-names>Olga V.</given-names></name></name-alternatives><bio xml:lang="ru"><p>канд. физ.-мат. наук, доцент</p></bio><bio xml:lang="en"><p>PhD</p></bio><email xlink:type="simple">papichonok@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Владимирский государственный университет им. А.Г. и Н.Г. Столетовых</institution><country>Россия</country></aff><aff xml:lang="en"><institution>A.G. and N.G. Stoletov Vladimir State University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2018</year></pub-date><pub-date pub-type="epub"><day>30</day><month>06</month><year>2018</year></pub-date><volume>25</volume><issue>3</issue><fpage>312</fpage><lpage>322</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Орешкина (Никольская) О.В., 2018</copyright-statement><copyright-year>2018</copyright-year><copyright-holder xml:lang="ru">Орешкина (Никольская) О.В.</copyright-holder><copyright-holder xml:lang="en">Oreshkina (Nikol’skaya) O.V.</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.mais-journal.ru/jour/article/view/689">https://www.mais-journal.ru/jour/article/view/689</self-uri><abstract><p>Доказаны гипотезы Ходжа, Тэйта и Мамфорда-Тэйта для расслоенного произведения двух неизотривиальных 1-параметрических семейств регулярных поверхностей с геометрическим родом 1 при некоторых условиях на вырожденные слои, ранги групп Нерона-Севери общих геометрических слоёв семейств и представления групп Ходжа в трансцендентных частях рациональных когомологий.Пусть \(\pi_i:X_i\to C\quad (i = 1, 2) \,-\,\) проективное неизотривиальное семейство поверхностей (возможно, с вырождениями) над гладкой проективной кривой \(C\). Предположим, что дискриминантные локусы \(\Delta_i=\{\delta\in C\,\,\vert\,\, Sing(X_{i\delta})\neq\varnothing\}\) не пересекаются, \(h^{2,0}(X_{ks})=1,\quad h^{1,0}(X_{ks}) = 0\) для любого гладкого слоя \(X_{ks}\), причём выполнены следующие условия:\((i)\) для любой точки \(\delta \in \Delta_i\) и преобразования Пикара--Лефшеца \( \gamma \in GL(H^2 (X_{is}, Q)) \), ассоциированного с гладкой частью \(\pi'_i: X'_i\to C\setminus\Delta_i\) морфизма \(\pi_i\) и с обходом вокруг точки \(\delta \in C\), имеем неравенство \((\log(\gamma))^2\neq0\);\((ii)\) многообразия \(X_i \, (i = 1, 2)\), кривая \(C\) и структурные морфизмы \(\pi_i:X_i\to C\) определены над некоторым конечнопорожденным подполем \(k \hookrightarrow C\).Если для общих геометрических слоев \(X_{1s}\) \, и \, \(X_{2s}\) выполнено хотя бы одно из следующих условий: \((a)\) \(b_2(X_{1s})- rank NS(X_{1s})\) является нечетным числом, \(\,\) \(b_2(X_{1s})- rank NS(X_{1s})\neq b_2(X_{2s})- rank NS(X_{2s})\); \((b)\) кольцо \( End_{ Hg(X_{1s})} NS_ Q(X_{1s})^\perp\) - мнимое квадратичное поле, \(\, b_2(X_{1s})- rank NS(X_{1s})\neq 4,\) \(\, End_{ Hg(X_{2s})} NS_ Q(X_{2s})^\perp\) -- вполне вещественное поле или \(\, b_2(X_{1s})- rank NS(X_{1s})\,&gt;\, b_2(X_{2s})- rank NS(X_{2s})\); \((c)\) \([b_2(X_{1s})- rank NS(X_{1s})\neq 4, \, End_{ Hg(X_{1s})} NS_ Q(X_{1s})^\perp= Q\); \(\,\) \(b_2(X_{1s})- rank NS(X_{1s})\neq b_2(X_{2s})- rank NS(X_{2s})\), то для расслоенного произведения \(X_1 \times_C X_2\) верна гипотеза Ходжа, для любого гладкого проективного \(k\)-многообразия \(X_0\) с условием \(X_1 \times_C X_2\) \(\widetilde{\rightarrow}\) \(X_0 \otimes_k C\) верны гипотеза Тэйта об алгебраических циклах и гипотеза Мамфорда-Тэйта для когомологий чётной степени.Более того, пространство \(H^2_{\text{é}t}(X_0 \otimes_k \overline{k}, Q_l(1))\) порождается классами дивизоров.</p></abstract><trans-abstract xml:lang="en"><p>The Hodge, Tate and Mumford-Tate conjectures are proved for the fibre product of two non-isotrivial 1-parameter families of regular surfaces with geometric genus 1 under some conditions on degenerated fibres, the ranks of the N\'eron - Severi groups of generic geometric fibres and representations of Hodge groups in transcendental parts of rational cohomology.Let \(\pi_i:X_i\to C\quad (i = 1, 2)\) be a projective non-isotrivial family (possibly with degeneracies) over a smooth projective curve \(C\). Assume that the discriminant loci \(\Delta_i=\{\delta\in C\,\,\vert\,\, Sing(X_{i\delta})\neq\varnothing\} \quad (i = 1, 2)\) are disjoint, \(h^{2,0}(X_{ks})=1,\quad h^{1,0}(X_{ks}) = 0\) for any smooth fibre \(X_{ks}\), and the following conditions hold:\((i)\) for any point \(\delta \in \Delta_i\) and the Picard-Lefschetz transformation \( \gamma \in GL(H^2 (X_{is}, Q)) \), associated with a smooth part \(\pi'_i: X'_i\to C\setminus\Delta_i\) of the morphism \(\pi_i\) and with a loop around the point \(\delta \in C\), we have \((\log(\gamma))^2\neq0\);\((ii)\) the variety \(X_i \, (i = 1, 2)\), the curve \(C\) and the structure morphisms \(\pi_i:X_i\to C\) are defined over a finitely generated subfield \(k \hookrightarrow C\).If for generic geometric fibres \(X_{1s}\) \, and \, \(X_{2s}\) at least one of the following conditions holds: \((a)\) \(b_2(X_{1s})- rank NS(X_{1s})\) is an odd prime number, \(\quad\,\,\) \(b_2(X_{1s})- rank NS(X_{1s})\neq b_2(X_{2s})- rank NS(X_{2s})\); \((b)\) the ring \(End_{ Hg(X_{1s})} NS_ Q(X_{1s})^\perp\) is an imaginary quadratic field, \(\quad\,\, b_2(X_{1s})- rank NS(X_{1s})\neq 4,\) \(\quad\,\, End_{ Hg(X_{2s})} NS_ Q(X_{2s})^\perp\) is a totally real field or \(\,\, b_2(X_{1s})- rank NS(X_{1s})\,&gt;\, b_2(X_{2s})- rank NS(X_{2s})\) ; \((c)\) \([b_2(X_{1s})- rank NS(X_{1s})\neq 4, \, End_{ Hg(X_{1s})} NS_ Q(X_{1s})^\perp= Q\); \(\quad\,\,\) \(b_2(X_{1s})- rank NS(X_{1s})\neq b_2(X_{2s})- rank NS(X_{2s})\),then for the fibre product \(X_1 \times_C X_2\) the Hodge conjecture is true, for any smooth projective \(k\)-variety \(X_0\) with the condition \(X_1 \times_C X_2\) \(\widetilde{\rightarrow}\) \(X_0 \otimes_k C\) the Tate conjecture on algebraic cycles and the Mumford-Tate conjecture for cohomology of even degree are true.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>гипотезы Ходжа</kwd><kwd>Тэйта</kwd><kwd>Мамфорда–Тэйта</kwd><kwd>расслоенное произведение</kwd><kwd>группа Мамфорда–Тэйта</kwd><kwd>l-адическое представление</kwd></kwd-group><kwd-group xml:lang="en"><kwd>Hodge</kwd><kwd>Tate and Mumford-Tate conjectures</kwd><kwd>fibre product</kwd><kwd>Mumford-Tate group</kwd><kwd>l-adic representation</kwd></kwd-group><funding-group><funding-statement xml:lang="ru">Работа выполнена при финансовой поддержке Российского фонда фундаментальных исследований (грант № 16-31-00266).</funding-statement><funding-statement xml:lang="en">This work was supported by the Russian Foundation for Basic Research under the Grant No 16-31-00266.</funding-statement></funding-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Hodge W. 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