List questions from commutative-algebra

Published on 25 Mar 2026 - 16:01

334

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A question regarding localization of ring

Published on 27 Mar 2026 - 2:39

55

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A criterion for embedding $\mathbb{Z}$ in $\mathbb{Z}^2$

Published on 20 Mar 2018 - 18:44

112

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Kernel of the map $D^2+aD+b : k[[X]] \to k[[X]]$ , where $D :k[[X]] \to k[[X]]$ is the usual derivative map

Published on 26 Mar 2026 - 3:10

88

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On the support of sheaf of modules or quasi-coherent sheaves over ringed spaces

Published on 22 Mar 2026 - 4:36

151

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Meaning of "réduit à 0" in EGA I

Published on 27 Mar 2026 - 13:14

1.2k

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The following domain is not integrally closed $\mathbb C[x,y]/\langle y^2 - x^3\rangle$

Published on 21 Mar 2018 - 2:34

263

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Preferable choice of a uniformizer in a complete local ring

Published on 21 Mar 2018 - 3:02

405

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localization and tensor product of algebras

Published on 27 Mar 2026 - 15:41

196

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Algebraic characterization for the set of all maximal ideals, as a subspace of $\operatorname{Spec} (R)$, to be connected

Published on 25 Mar 2026 - 6:15

103

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Is the direct limit of submodules also a submodule?

Published on 22 Mar 2018 - 8:12

37

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Local-global principal for modules: simple example

Published on 27 Mar 2026 - 4:15

242

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In an integral extension $A\subseteq B$, when $B$ Noetherian implies $A$ Noetherian?

Published on 23 Mar 2026 - 0:09

258

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Regular Local Ring of Formal Power Series Regular

Published on 22 Mar 2018 - 15:12

586

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Commutative ring $R$ of odd prime characteristic $p$ and $(a+b)^n=a^n+ b^n, \forall a,b \in R$

Published on 27 Mar 2026 - 4:21

List Question

On minimum cardinality of generating sets of modules

A question regarding localization of ring

A criterion for embedding $\mathbb{Z}$ in $\mathbb{Z}^2$

Kernel of the map $D^2+aD+b : k[[X]] \to k[[X]]$ , where $D :k[[X]] \to k[[X]]$ is the usual derivative map

On the support of sheaf of modules or quasi-coherent sheaves over ringed spaces

Meaning of "réduit à 0" in EGA I

The following domain is not integrally closed $\mathbb C[x,y]/\langle y^2 - x^3\rangle$

Preferable choice of a uniformizer in a complete local ring

localization and tensor product of algebras

Algebraic characterization for the set of all maximal ideals, as a subspace of $\operatorname{Spec} (R)$, to be connected

Is the direct limit of submodules also a submodule?

Local-global principal for modules: simple example

In an integral extension $A\subseteq B$, when $B$ Noetherian implies $A$ Noetherian?

Regular Local Ring of Formal Power Series Regular

Commutative ring $R$ of odd prime characteristic $p$ and $(a+b)^n=a^n+ b^n, \forall a,b \in R$

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