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Topology of Discriminants and Their Complements

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Abstract

The general notion of a discriminant is as follows. Consider any function space \(\mathcal{F}\), finite dimensional or not, and some class of singularities S that the functions from \(\mathcal{F}\) can take at the points of the issue manifold. The corresponding discriminant variety ∑(S) ⊂ \(\mathcal{F}\) is the space of all functions that have such singular points. For example, let \(\mathcal{F}\) be the space of (real or complex) polynomials of the form

$${x^d} + {a_1}{x^{d - 1}} + \cdots + {a^{d,}}$$
(1)

and S = {a multiple root}.

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© 1995 Birkhäser Verlag, Basel, Switzerland

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Vassiliev, V.A. (1995). Topology of Discriminants and Their Complements. In: Chatterji, S.D. (eds) Proceedings of the International Congress of Mathematicians. Birkhäuser, Basel. https://doi.org/10.1007/978-3-0348-9078-6_16

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  • DOI: https://doi.org/10.1007/978-3-0348-9078-6_16

  • Publisher Name: Birkhäuser, Basel

  • Print ISBN: 978-3-0348-9897-3

  • Online ISBN: 978-3-0348-9078-6

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