I. Vainsencher

activity

19942022

n

-fold tangent hyperplanes to a surface

85 citations · 91 across the 6 of their papers we have counts for

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alg-geom1996

Flatness of families induced by hypersurfaces on flag varieties

Israel Vainsencher

We answer a question posed by S. Kleiman concerning flatness of the family of complete quadrics. We also show that any flat family of hypersurfaces on Grassmann varieties induces a…

alg-geom1994★ 85 cited

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

Israel Vainsencher

For each $1 \leq n \leq 6$ 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 nu…

Flatness of families induced by hypersurfaces on flag varieties

Enumeration of n-fold tangent hyperplanes to a surface

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