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NoetherianOperators :: truncate(DualSpace,List,ZZ)

truncate(DualSpace,List,ZZ) -- truncate a polynomial space or dual space

Synopsis

Description

This method truncates a dual space or polynomial space T, so that the total degree of the specified variables is bounded by d.

i1 : R = CC[x,y];
i2 : I = ideal {x,y};

o2 : Ideal of R
i3 : D = zeroDimensionalDual(origin R, I^3)

o3 = | 1 y x .5y2 xy .5x2 |

o3 : DualSpace
i4 : truncate(D, {0}, 1)

o4 = | xy x y2 y 1 |

o4 : DualSpace