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Computation of blowing up centers

✍ Scribed by Gábor Bodnár

Publisher
Elsevier Science
Year
2003
Tongue
English
Weight
165 KB
Volume
179
Category
Article
ISSN
0022-4049

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✦ Synopsis

Given a birational projective morphism of quasi-projective varieties f : Z → X . We want to ÿnd the ideal sheaf I over X such that the blowing up of X along I corresponds to f. In this paper we approach the problem from two directions, solving two subcases. First we present a method that determines I when f is the composition of blowing ups along known centers, then by another method, we compute I directly from i(Z) ⊂ P n X .

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