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单词 Regular local ring
释义

Regular local ring

中文百科

正则局部环

在交换代数中,正则局部环是使得其极大理想的最小生成元个数等于其Krull维度的局部诺特环。

(A,\mathfrak{m}) 为局部诺特环。设 a_1, \ldots, a_n\mathfrak{m} 的一组最小生成元,一般而言有 n \geq \dim A。当 n = \dim A 时,称 A正则局部环

根据中山正引理,局部诺特环 (A,\mathfrak{m}) 为正则局部环若且唯若 \dim_{A/\mathfrak{m}} \mathfrak{m}/\mathfrak{m}^2 = \dim A

英语百科

Regular local ring 正则局部环

In commutative algebra, a regular local ring is a Noetherian local ring having the property that the minimal number of generators of its maximal ideal is equal to its Krull dimension. In symbols, let A be a Noetherian local ring with maximal ideal m, and suppose a1, ..., an is a minimal set of generators of m. Then by Krull's principal ideal theorem n ≥ dim A, and A is defined to be regular if n = dim A.

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更新时间:2025/6/20 19:56:08