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Minimal rational curves on wonderful group compactifications

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 نشر من قبل Baohua Fu
 تاريخ النشر 2015
  مجال البحث
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Consider a simple algebraic group G of adjoint type, and its wonderful compactification X. We show that X admits a unique family of minimal rational curves, and we explicitly describe the subfamily consisting of curves through a general point. As an application, we show that X has the target rigidity property when G is not of type A_1 or C.



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