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CORR
2008
Springer
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13 years 11 months ago
The implicit equation of a canal surface
A canal surface is an envelope of a one parameter family of spheres. In this paper we present an efficient algorithm for computing the implicit equation of a canal surface generat...
Marc Dohm, Severinas Zube
CORR
2010
Springer
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13 years 11 months ago
Hypersurfaces with degenerate duals and the Geometric Complexity Theory Program
We determine set-theoretic defining equations for the variety Dualk,d,N P(Sd CN ) of hypersurfaces of degree d in CN that have dual variety of dimension at most k. We apply these ...
J. M. Landsberg, Laurent Manivel, Nicolas Ressayre