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On the connectedness of Deligne-Lusztig varieties

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 نشر من قبل Ulrich Goertz
 تاريخ النشر 2008
  مجال البحث
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 تأليف Ulrich Goertz




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We give a criterion which determines when a union of one-dimensional Deligne-Lusztig varieties has a connected closure. We also obtain a new, short proof of the connectedness criterion for Deligne-Lusztig varieties due to Lusztig.



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