Cohen Macaulay fibres of a morphism

Cristodor Ionescu

Abstract


We present the main results about morphisms whose fibres are Cohen-Macaulay and about rings having Cohen-Macaulay formal fibers. We give new proofs for the localization theorems for morphisms with Cohen-Macaulay or (Sn) fibres and we point out some open questions in this direction.

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DOI: http://dx.doi.org/10.1478/C1A0801001