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Noun
1. commutative algebraMathematics
Wikipedia definition
2. Commutative algebraCommutative algebra is the branch of abstract algebra that studies commutative rings, their ideals, and modules over such rings. Both algebraic geometry and algebraic number theory build on commutative algebra. Prominent examples of commutative rings include polynomial rings, rings of algebraic integers, including the ordinary integers, and p-adic integers. Commutative algebra is the main technical tool in the local study of schemes.
Read “Commutative algebra” on English Wikipedia
Read “可換環論” on Japanese Wikipedia
Read “Commutative algebra” on DBpedia

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