Bourbaki

Example 5

Tag 0DAY, permanent. Cite it as [Bourbaki, Tag 0DAY].

Commutative Algebra, chapter X, § 8. Dualité des modules de longueur finie

Let us take up again the hypotheses and notations of Example 1. Then T(A/mAn)=HomA(A/mAn,J)T(A/\mathfrak{m}_A^n) = \mathrm{Hom}_A(A/\mathfrak{m}_A^n, J) is identified with the submodule JnJ_n of JJ formed by the elements annihilated by mAn\mathfrak{m}_A^n; by passing to the inductive limit one obtains a canonical isomorphism of II onto JJ.

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

Cited by

Nothing.

Cites

Nothing.

Translated with machine help, not yet reviewed by a person.