An abelian group is a group in which the group operation is commutative.
abelian theorem
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The abelian theorem states that every subgroup of an abelian group is normal.
abelian variety
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An abelian variety is a complex torus that is also an algebraic variety.
Idiomatic Expressions for abelian
Phrase: abelian variety
Meaning: a complex torus that is also an algebraic variety, with a group structure that is commutative
Usage: Abelian varieties are important objects in algebraic geometry and number theory.