On branched coverings of quadrics (Q1924950)
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scientific article; zbMATH DE number 938577
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | On branched coverings of quadrics |
scientific article; zbMATH DE number 938577 |
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On branched coverings of quadrics (English)
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14 January 1997
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Using the ``\(k\)-ampleness'' (in the sense of Sommese) of the vector bundle associated with a branched covering, \(f : X \to {\mathcal Q}_n\), of the smooth quadric \({\mathcal Q}_n\), we prove that \(f\) induces \(\mathbb{C}\)-cohomology isomorphisms between \(X\) and \({\mathcal Q}_n\) in a certain range of cohomology and homotopy dimensions, provided the degree of the covering is small enough.
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Lefschetz type theorems
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\(k\)-ampleness
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branched covering
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smooth quadric
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0.89094955
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0.8885392
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