Bourbaki

Definition 2

Tag 04KO, permanent. Cite it as [Bourbaki, Tag 04KO].

Commutative Algebra, chapter IV, § 2. Primary decomposition

Let AA be a Noetherian ring, MM an AA-module and NN a submodule of MM. A finite family (Qi)i∈I(\mathscr{Q}_i)_{i \in I} of submodules of MM which are primary with respect to MM and such that N=⋂i∈IQiN = \bigcap_{i \in I} \mathscr{Q}_i is called a primary decomposition of NN in MM.

Bourbaki puts the proof directly after the statement, so what is above is the statement and its proof together.

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Transcribed from the printed volume. Not translated.