Counting signed swallowtails of polynomial selfmaps of \(\mathbb R^3\) (Q304503)
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scientific article; zbMATH DE number 6619573
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Counting signed swallowtails of polynomial selfmaps of \(\mathbb R^3\) |
scientific article; zbMATH DE number 6619573 |
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Counting signed swallowtails of polynomial selfmaps of \(\mathbb R^3\) (English)
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25 August 2016
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A generic smooth map from \(\mathbb{R}^3\) to itself has a discrete set of positive and negative swallowtail points. The authors give a formula for the number of them in terms of signatures of quadratic forms, in the case of a polynomial mapping.
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swallowtail
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signature of quadratic form
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