List questions from cohen-macaulay

Published on 26 Dec 2012 - 21:54

376

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What has projectiveness to do with Cohen-Macaulay rings?

Published on 07 Feb 2013 - 6:08

177

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Checking a ring is not Cohen-Macaulay

Published on 06 Aug 2020 - 6:21

52

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Vanishing of certain Ext groups for some two-dimensional singularities

Published on 17 Dec 2020 - 19:21

114

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A case when $I \otimes_R M$ and $ IM$ are locally isomorphic at minimal primes?

Published on 09 Jan 2021 - 11:01

91

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Finite birational extension of $1$-dimensional Cohen-Macaulay ring

Published on 23 Feb 2026 - 16:26

26

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Irreducibility of a morphism and indecomposability of a module in a minimal MCM approximation

Published on 13 Jan 2021 - 17:27

60

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$1$-dimensional local Cohen--Macaulay ring whose normalisation is a module finite extension

Published on 16 Jan 2021 - 6:59

229

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Flat morphism of local rings

Published on 25 Mar 2026 - 9:24

47

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Local Cohen-Macaulay rings

Published on 25 Apr 2021 - 16:06

84

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Cohen-Macaulayness and regularity of $A/p$

Published on 25 Mar 2026 - 9:26

70

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Ideal $I$ with $\operatorname{depth}(I)=d$ in a local CM ring of dimension $d$

Published on 25 Mar 2026 - 9:28

111

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Flat extension of local domains

Published on 25 Mar 2026 - 11:01

149

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Minimal prime ideals of Cohen-Macaulay modules of positive dimension are minimal primes of the ring?

Published on 30 Apr 2021 - 14:51

195

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Torsion-free Cohen-Macaulay modules

Published on 03 May 2021 - 8:34

List Question

Cohen–Macaulayness of $R=k[x_1, \dots,x_n]/\mathfrak p$

What has projectiveness to do with Cohen-Macaulay rings?

Checking a ring is not Cohen-Macaulay

Vanishing of certain Ext groups for some two-dimensional singularities

A case when $I \otimes_R M$ and $ IM$ are locally isomorphic at minimal primes?

Finite birational extension of $1$-dimensional Cohen-Macaulay ring

Irreducibility of a morphism and indecomposability of a module in a minimal MCM approximation

$1$-dimensional local Cohen--Macaulay ring whose normalisation is a module finite extension

Flat morphism of local rings

Local Cohen-Macaulay rings

Cohen-Macaulayness and regularity of $A/p$

Ideal $I$ with $\operatorname{depth}(I)=d$ in a local CM ring of dimension $d$

Flat extension of local domains

Minimal prime ideals of Cohen-Macaulay modules of positive dimension are minimal primes of the ring?

Torsion-free Cohen-Macaulay modules

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