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Divisor :: isReflexive

isReflexive -- Checks whether an ideal or module is reflexive

Synopsis

Description

Returns true if the module or ideal is reflexive, otherwise it returns false.
i1 : R = QQ[x,y,z]/ideal(x^2-y*z)

o1 = R

o1 : QuotientRing
i2 : m = ideal(x,y,z)

o2 = ideal (x, y, z)

o2 : Ideal of R
i3 : isReflexive(m)

o3 = false
i4 : I = ideal(x,y)

o4 = ideal (x, y)

o4 : Ideal of R
i5 : isReflexive(I)

o5 = true

See also

Ways to use isReflexive :