A test ideal is a positive characteristic analog of a
multiplier ideal In commutative algebra, the multiplier ideal associated to a sheaf of ideals
Ideal may refer to:
Philosophy
* Ideal (ethics), values that one actively pursues as goals
* Platonic ideal, a philosophical idea of trueness of form, associated with ...
in, say, the field of complex numbers. Test ideals are used in the study of singularities in algebraic geometry in positive characteristic.
References
Commutative algebra
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