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D.5.5.12 DeltaList

Procedure from library resolve.lib (see resolve_lib).

Usage:
DeltaList (BO);
BO = basic object, a list: ideal W,
ideal J,
intvec b,
list Ex,
ideal ab,
intvec v,
intvec w,
matrix M

Assume:
R = basering, a polynomial ring, W an ideal of R,
J = ideal containing W

Compute:
Delta-operator iteratively applied to J in the notation of [Bravo,Encinas,Villamayor]

Return:
list l of length ((max w-ord) * b),
l[i+1]=Delta^i(J)

Example:
 

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