List questions from commutative-algebra

Published on 30 Nov 2018 - 21:06

94

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Noetherian domain whose fraction field is such that some specific proper submodules are projective

Published on 23 Feb 2026 - 2:28

91

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Suppose an ideal $q$ is $p$-primary, prove or disprove that if $(q:x)=q$, then $x$ is not in $p$

Published on 02 Dec 2018 - 7:52

950

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Basic properties of complete intersection ideals

Published on 29 Mar 2026 - 21:33

509

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Ramified Cover of Affine Scheme

Published on 25 Mar 2026 - 22:11

85

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When does localisation behave badly?

Published on 26 Mar 2026 - 1:06

151

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Localisation of $\mathbb{Z}/(p^k)$.

Published on 26 Mar 2026 - 1:03

203

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Degrees in Monomials

Published on 27 Mar 2026 - 14:57

55

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Cohen-Macaulay ring without non-trivial idempotent is homomorphic image of Noetherian domain?

Published on 05 Apr 2026 - 16:14

251

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If the completion of a module is trivial, must the module be trivial?

Published on 25 Mar 2026 - 7:45

729

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$\overline{f}$ is isomorphism in abelian category

Published on 01 Apr 2026 - 20:54

397

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diagonal and codiagonal morphism in additive category

Published on 04 Apr 2026 - 6:44

112

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Over which commutative rings do we have Smith normal form?

Published on 04 Dec 2018 - 19:02

78

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Local property of a flat family of schemes

Published on 01 Apr 2026 - 18:11

205

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Fiber of Morphism between Affine Schemes

Published on 04 Dec 2018 - 22:58

List Question

The relation between a ring homomorphism $\phi$ and $\mathrm{Spec}(\phi)$

Noetherian domain whose fraction field is such that some specific proper submodules are projective

Suppose an ideal $q$ is $p$-primary, prove or disprove that if $(q:x)=q$, then $x$ is not in $p$

Basic properties of complete intersection ideals

Ramified Cover of Affine Scheme

When does localisation behave badly?

Localisation of $\mathbb{Z}/(p^k)$.

Degrees in Monomials

Cohen-Macaulay ring without non-trivial idempotent is homomorphic image of Noetherian domain?

If the completion of a module is trivial, must the module be trivial?

$\overline{f}$ is isomorphism in abelian category

diagonal and codiagonal morphism in additive category

Over which commutative rings do we have Smith normal form?

Local property of a flat family of schemes

Fiber of Morphism between Affine Schemes

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