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ReesAlgebra :: normalCone

normalCone -- The normal cone of a subscheme

Synopsis

Description

The normal cone of an ideal I⊂ R is the ring R/I ⊕ I/I2 ⊕..., also called the associated graded ring of R with respect to I. If S is the Rees algebra of I, then this ring is isomorphic to S/IS, which is how it is computed here.

See also

Ways to use normalCone :