Combinatorial analysis of point obstructions to local factorizability in three-folds (Q916737)
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scientific article; zbMATH DE number 4154601
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Combinatorial analysis of point obstructions to local factorizability in three-folds |
scientific article; zbMATH DE number 4154601 |
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Combinatorial analysis of point obstructions to local factorizability in three-folds (English)
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1989
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The paper introduces formally the concept of local factorizability used in earlier factorizability work, identifies the basic form of obstructions to local factorizability of birational morphisms, and outlines a combinatorial technique for analyzing such obstructions. As an application and illustration, two open cases in the classification of birational morphisms with small canonical divisors are settled.
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threefolds
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local factorizability of birational morphisms
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