List questions from commutative-algebra

Published on 25 Mar 2026 - 7:40

60

Views

Completeness and model completeness of the first order theory of Valuation rings

Published on 25 Mar 2026 - 11:06

273

Views

Isomorphism in a commutative diagram, variation of snake lemma

Published on 26 Mar 2026 - 22:15

78

Views

Understanding natural isomorphisms

Published on 30 Apr 2018 - 17:21

749

Views

For every finitely generated ideal $I\subset A$ the map $I\otimes_A M\rightarrow A\otimes_A M$ is injective, then $M$ is flat.

Published on 01 May 2018 - 11:25

576

Views

Prove that a commutative ring is primitive if and only if it is a field.

Published on 28 Mar 2026 - 15:26

82

Views

Non freely presented module

Published on 27 Mar 2026 - 5:54

495

Views

Annihilator of a prime ideal

Published on 28 Mar 2026 - 15:26

125

Views

Theorem 8.4 in Matsumura's Commutative Algebra

Published on 02 May 2018 - 11:25

273

Views

Prime ideals in $\mathbb{C}[f(t),g(t)]$, where $f(t),g(t) \in \mathbb{C}[t]$.

Published on 28 Mar 2026 - 16:58

38

Views

Ideals associated to valuations

Published on 26 Mar 2026 - 23:59

182

Views

Characterizing all non-integrally closed subrings of $\mathbb{C}[t]$

Published on 03 May 2018 - 16:25

23

Views

Modulisomorphism between $R/a\otimes_\mathbb{R} R/b\rightarrow R/(a\cup b)$

Published on 03 May 2018 - 19:47

1.6k

Views

Example of non-Noetherian ring

Published on 27 Mar 2026 - 4:36

96

Views

$\mathbb{Q}(\sqrt2)\otimes_\mathbb{Q} \mathbb{Q}(\sqrt2)$ isn't a field.

Published on 03 May 2018 - 20:24

List Question

Using model theory to prove a Real Nullstellensatz?

Completeness and model completeness of the first order theory of Valuation rings

Isomorphism in a commutative diagram, variation of snake lemma

Understanding natural isomorphisms

For every finitely generated ideal $I\subset A$ the map $I\otimes_A M\rightarrow A\otimes_A M$ is injective, then $M$ is flat.

Prove that a commutative ring is primitive if and only if it is a field.

Non freely presented module

Annihilator of a prime ideal

Theorem 8.4 in Matsumura's Commutative Algebra

Prime ideals in $\mathbb{C}[f(t),g(t)]$, where $f(t),g(t) \in \mathbb{C}[t]$.

Ideals associated to valuations

Characterizing all non-integrally closed subrings of $\mathbb{C}[t]$

Modulisomorphism between $R/a\otimes_\mathbb{R} R/b\rightarrow R/(a\cup b)$

Example of non-Noetherian ring

$\mathbb{Q}(\sqrt2)\otimes_\mathbb{Q} \mathbb{Q}(\sqrt2)$ isn't a field.

Trending Questions

Popular # Hahtags

Popular Questions