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metalspringpro
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13
What is "self-dual" about Gorenstein rings?
Jul 23, 2020
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6
Is exercise 2.22 (iii) in Rotman's Homological Algebra book wrong?
Sep 11, 2021
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6
Is $k[x,y]/(x,y) \otimes_{k[x,y]} (x,y) = 0$?
Mar 23, 2020
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5
Regular sequence in Cohen-Macaulay ring is regular on Maximal CM-module
Jan 12, 2020
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4
Relationship between the depth of a local Cohen-Macaulay ring and its associated graded ring
Dec 30, 2019
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4
Example of noetherian local ring without Maximal Cohen-Macaulay modules.
Oct 10, 2023
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4
Does an ideal $I=(x_1,...,x_n)$ which contains a regular element implie $x_i$ is regular for some $i$?
Jan 15, 2020
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4
Computation of $\operatorname{Tor}^{\mathbb{Q}[x,y]}_1(\mathbb{Q}[x,y]/(x,y), (x, y))$.
Aug 1, 2022
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4
If $R/I$ is Cohen-Macaulay, is $R/I^2$ also Cohen-Macaulay?
Jul 26, 2022
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4
Is $M\otimes E(R/m)$ an indecomposable module?
Nov 11, 2021
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Example of a certain type of Cohen-Macaulay ring