Monoid of ideals in a commutative ring¶
WARNING: This is used by some rings that are not commutative!
sage: MS = MatrixSpace(QQ,3,3)
sage: type(MS.ideal(MS.one()).parent())
<class 'sage.rings.ideal_monoid.IdealMonoid_c_with_category'>
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sage.rings.ideal_monoid.
IdealMonoid
(R)¶ Return the monoid of ideals in the ring
R
.EXAMPLES:
sage: R = QQ['x'] sage: sage.rings.ideal_monoid.IdealMonoid(R) Monoid of ideals of Univariate Polynomial Ring in x over Rational Field
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class
sage.rings.ideal_monoid.
IdealMonoid_c
(R)¶ Bases:
sage.structure.parent.Parent
The monoid of ideals in a commutative ring.
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Element
¶ alias of
sage.rings.ideal.Ideal_generic
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ring
()¶ Return the ring of which this is the ideal monoid.
EXAMPLES:
sage: R = QuadraticField(-23, 'a') sage: M = sage.rings.ideal_monoid.IdealMonoid(R); M.ring() is R True
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