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Restrictions on collapsing with a lower sectional curvature bound

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 نشر من قبل Vitali Kapovitch
 تاريخ النشر 2001
  مجال البحث
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 تأليف Vitali Kapovitch




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We obtain new topological information about the local structure of collapsing under a lower sectional curvature bound. As an application we prove a new sphere theorem and obtain a partial result towards the conjecture that not every Alexandrov space can be obtained as a limit of a sequence of Riemannian manifolds with sectional curvature bounded from below.

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