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Divisor :: reflexivePower

reflexivePower -- Computes a reflexive power of an ideal

Synopsis

Usage:
I2 = reflexivePower( n1, I1 )
Inputs:
- I1, an ideal
- n1, an integer
Outputs:
- I2, an ideal

Description

Returns the n1’th reflexive power of I1.

i1 : R = QQ[x,y,z]/ideal(x^2-y*z)

o1 = R

o1 : QuotientRing

i2 : J = ideal(x,y)

o2 = ideal (x, y)

o2 : Ideal of R

i3 : reflexivePower(5, J)

             3     2
o3 = ideal (y , x*y )

o3 : Ideal of R

i4 : reflexivePower(6, J)

            3
o4 = ideal y

o4 : Ideal of R

See also

reflexifyIdeal -- Calculate the double dual of an ideal
isReflexive -- Checks whether an ideal or module is reflexive

Ways to use `reflexivePower` :

reflexivePower(ZZ,Ideal)