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Vanishing topology of codimension 1 multi-germs over $\Bbb R$ and $\Bbb C$

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Cooper, T., Mond, D. (David) and Wik Atique, R. (2002) Vanishing topology of codimension 1 multi-germs over $\Bbb R$ and $\Bbb C$. Compositio Mathematica, Vol.13 (No.2). pp. 121-160. doi:10.1023/A:1014930205374

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Official URL: http://dx.doi.org/10.1023/A:1014930205374

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Abstract

We construct all $\cal A$e-codimension 1 multi-germs of analytic (or smooth) maps (kn, T) [rightward arrow] (kp, 0), with n [gt-or-equal, slanted] p − 1, (n, p) nice dimensions, k = $\mathbb C$ or $\mathbb R$, by augmentation and concatenation operations, starting from mono-germs (|T| = 1) and one 0-dimensional bi-germ. As an application, we prove general statements for multi-germs of corank [less-than-or-eq, slant] 1: every one has a real form with real perturbation carrying the vanishing homology of the complexification, every one is quasihomogeneous, and when n = p − 1 every one has image Milnor number equal to 1 (this last is already known when n [gt-or-equal, slanted] p).

Item Type: Journal Article
Subjects: Q Science > QA Mathematics
Divisions: Faculty of Science, Engineering and Medicine > Science > Mathematics
Library of Congress Subject Headings (LCSH): Perturbation (Mathematics), Topology, Discriminant analysis, Singularities (Mathematics), Deformations of singularities
Journal or Publication Title: Compositio Mathematica
Publisher: Cambridge University Press
ISSN: 0010-437X
Official Date: April 2002
Dates:
DateEvent
April 2002Published
Volume: Vol.13
Number: No.2
Page Range: pp. 121-160
DOI: 10.1023/A:1014930205374
Status: Peer Reviewed
Access rights to Published version: Open Access

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