Question

How do we know that $f(x)\in Y$?

score 98 · Answer 1 · 2026-04-11 09:56:58

98

Views

How do we know that $f(x)\in Y$?

Published on 11 Apr 2026 - 9:56

score 219 · Answer 2 · 2026-04-15 05:39:44

219

Views

Proving that a field $K$ can be generated by algebraically independent elements and an separable element

Published on 15 Apr 2026 - 5:39

score 898 · Answer 3 · 2026-04-11 22:34:34

898

Views

Why does every maximal ideal closed in $\mathfrak{a}$-topology imply that $\mathfrak{a} \subseteq \text{Jac}(A)$?

Published on 11 Apr 2026 - 22:34

score 76 · Answer 4 · 2026-04-15 05:50:28

76

Views

$a,b$ integral $\implies$ $a+b$ integral

Published on 15 Apr 2026 - 5:50

score 2.2k · Answer 5 · 2026-04-10 21:30:53

2.2k

Views

In an extension of finitely generated $k$-algebras the contraction of a maximal ideal is also maximal

Published on 10 Apr 2026 - 21:30

score 400 · Answer 6 · 2026-04-17 14:56:56

400

Views

The lattice points of a f.g. rational cone form a f.g. monoid.

Published on 17 Apr 2026 - 14:56

score 196 · Answer 7 · 2026-04-12 00:05:26

196

Views

$\Gamma_{\mathfrak a}(I)$ is an injective $R$-module for every injective $R$-module $I$

Published on 12 Apr 2026 - 0:05

score 133 · Answer 8 · 2026-04-13 08:17:18

133

Views

Vanishing of local cohomology and primary decomposition

Published on 13 Apr 2026 - 8:17

score 70 · Answer 9 · 2026-04-15 09:49:34

70

Views

Does the relation $\pi(S_{i})=S^{-1}R-P_{i}\cdot S^{-1}R$ hold for prime ideals $P_i$ in a commutative ring $R$?

Published on 15 Apr 2026 - 9:49

score 157 · Answer 10 · 2026-04-14 20:29:32

157

Views

Lemma 5.3.6 in Bruns and Herzog, Cohen-Macaulay Rings

Published on 14 Apr 2026 - 20:29

score 139 · Answer 11 · 2026-04-14 17:30:54

139

Views

Generating set of the algebra invariants of finite group.

Published on 14 Apr 2026 - 17:30

score 724 · Answer 12 · 2026-04-14 14:51:53

724

Views

Rank of a module when the base ring is not a domain

Published on 14 Apr 2026 - 14:51

score 263 · Answer 13 · 2026-04-14 00:08:24

263

Views

Does the $I$-torsion functor commute with inverse limit?

Published on 14 Apr 2026 - 0:08

score 418 · Answer 14 · 2026-04-13 13:07:16

418

Views

Tensor product of free modules over free algebra

Published on 13 Apr 2026 - 13:07

score 405 · Answer 15 · 2026-04-11 20:40:06

405

Views

Can a rational map $X\leadsto Y$ be defined as a scheme morphism $Z\to Y$ for some $Z$?

Published on 11 Apr 2026 - 20:40

List Question

How do we know that $f(x)\in Y$?

Proving that a field $K$ can be generated by algebraically independent elements and an separable element

Why does every maximal ideal closed in $\mathfrak{a}$-topology imply that $\mathfrak{a} \subseteq \text{Jac}(A)$?

$a,b$ integral $\implies$ $a+b$ integral

In an extension of finitely generated $k$-algebras the contraction of a maximal ideal is also maximal

The lattice points of a f.g. rational cone form a f.g. monoid.

$\Gamma_{\mathfrak a}(I)$ is an injective $R$-module for every injective $R$-module $I$

Vanishing of local cohomology and primary decomposition

Does the relation $\pi(S_{i})=S^{-1}R-P_{i}\cdot S^{-1}R$ hold for prime ideals $P_i$ in a commutative ring $R$?

Lemma 5.3.6 in Bruns and Herzog, Cohen-Macaulay Rings

Generating set of the algebra invariants of finite group.

Rank of a module when the base ring is not a domain

Does the $I$-torsion functor commute with inverse limit?

Tensor product of free modules over free algebra

Can a rational map $X\leadsto Y$ be defined as a scheme morphism $Z\to Y$ for some $Z$?

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