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Explicit Decomposition Theorem for special Schubert varieties

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 نشر من قبل Davide Franco
 تاريخ النشر 2018
  مجال البحث
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 تأليف Davide Franco




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We give a short and self-contained proof of the Decomposition Theorem for the non-small resolution of a Special Schubert variety. We also provide an explicit description of the perverse cohomology sheaves. As a by-product of our approach, we obtain a simple proof of the Relative Hard Lefschetz Theorem.



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