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Enumeration of $n$-fold tangent hyperplanes to a surface

Israel Vainsencher
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Abstract

For each $1\leq n\leq6$ we present formulas for the number of $n-$nodal curves in an $n-$dimensional linear system on a smooth, projective surface. This yields in particular the numbers of rational curves in the system of hyperplane sections of a generic $K3-$surface imbedded in \p{n} by a complete system of curves of genus $n$ as well as the number {\bf17,601,000} of rational ({\em singular}) plane quintic curves in a generic quintic threefold.

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Israel Vainsencher. 1994-01-24. Enumeration of $n$-fold tangent hyperplanes to a surface. https://arxiv.org/abs/alg-geom/9312012

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