Abstract
We use the theory of the integral closure of an ideal to study the equivalence of
map-germs under C0 coordinate changes in the target. We also derive a
formula for the number of double points of a map germ from Cn
→ C2n in terms of the Segre
number of dimension 0 of an ideal associated to the double point locus of f, and the
number of Whitney umbrellas of the composition of f with a generic projection to
C2n−1.
Publisher
Cambridge University Press (CUP)
Cited by
6 articles.
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