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arXiv · 1009.5812

Wave fronts and (almost) free divisors

Susumu Tanabe
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Abstract

In this note we present a description of wave front evolving from an algebraic hypersurface by means of a pull-back of the discriminantal loci of a tame polynomial via a polynomial mapping. As an application we give examples of wave fronts which define free/almost free divisors near the focal point.

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Susumu Tanabe. 2010-09-29. Wave fronts and (almost) free divisors. https://arxiv.org/abs/1009.5812

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