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单词 IntegralClosure
释义

integral closure


Let B be a ring with a subring A. The integral closureMathworldPlanetmath of A in B is the set AB consisting of all elements of B which are integral over A.

It is a theorem that the integral closure of A in B is itself a ring. In the special case where A=, the integral closure A of is often called the ring of integers in B.

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更新时间:2025/5/4 16:13:32