English edit

Etymology edit

Named for Irvin Cohen and Francis Sowerby Macaulay, who proved unmixedness results for specific classes of rings, which Cohen-Macaulay rings generalize.

Adjective edit

Cohen-Macaulay (not comparable)

  1. (commutative algebra, of a finite module over a noetherian local ring) Such that its depth is equal to its Krull dimension.
  2. (commutative algebra, of a noetherian local ring) Cohen-Macaulay as a module over itself.
  3. (commutative algebra, of a module   over a noetherian ring) Such that all localizations of   at maximal ideals contained in the support of   are either Cohen-Macaulay or trivial.
  4. (commutative algebra, of a noetherian ring) Cohen-Macaulay as a module over itself.