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Abelian group

A·be·lian group [ a blyən grp ] (plural A·be·lian groups)


noun 
Definition:
 
interchangeable algebraic group: an algebraic group in which the result of the operation is independent of the sequence of the operands, e.g. ab = ba or a+b = b+a

[Mid-19th century. After Niels Abel (1802-1829), Norwegian mathematician]
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