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Topological Abel-Jacobi map and mixed Hodge structures

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 نشر من قبل Yilong Zhang
 تاريخ النشر 2021
  مجال البحث
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 تأليف Yilong Zhang




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For a smooth projective variety $X$ of dimension $2n-1$, Zhao defined topological Abel-Jacobi map, which sends vanishing cycles on a smooth hyperplane section $Y$ of $X$ to the middle dimensional primitive intermediate Jacobian of $X$. When the vanishing cycles are algebraic, it agrees with Griffiths Abel-Jacobi map. On the other hand, Schnell defined a topological Abel-Jacobi map using the $mathbb R$-splitting property of the mixed Hodge structure on $H^{2n-1}(Xsetminus Y)$. We show that the two definitions coincide, which answers a question of Schnell.



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