quadric cone

quadric cone

[′kwä·drik ¦kōn]
(mathematics)
A conical surface whose directrices are conic curves.
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References in periodicals archive ?
If Q is a quadric cone, then C is arithmetically Cohen-Macaulay ([16, V, Ex.
Quadric cones determine a codimension 1 subset in the set of hyperquadrics in [P.