Question

how to check for a primary ideal in a commutative ring

score 82 · Answer 1 · 2026-04-09 20:07:20

82

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how to check for a primary ideal in a commutative ring

Published on 09 Apr 2026 - 20:07

score 59 · Answer 2 · 2026-04-14 01:00:12

59

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Why the flip between prime and maximal/irreducible?

Published on 14 Apr 2026 - 1:00

score 227 · Answer 3 · 2026-03-26 02:34:56

227

Views

Idempotents and Direct Sums with Modules

Published on 26 Mar 2026 - 2:34

score 179 · Answer 4 · 2026-03-27 20:21:30

179

Views

Lie bracket in the universal enveloping lie algebra of $A_1$

Published on 27 Mar 2026 - 20:21

score 101 · Answer 5 · 2026-04-12 15:08:23

101

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Basic decomposition in a ring with unity

Published on 12 Apr 2026 - 15:08

score 41 · Answer 6 · 2026-04-14 19:59:52

41

Views

Maximal ideals containing a non-constant irreducible polynomial $f$ in $\mathbb{Z}[X]$.

Published on 14 Apr 2026 - 19:59

score 32 · Answer 7 · 2026-04-14 17:08:02

If $p(x) \in \mathbb{Z}[x]$ is of degree $2$ having distinct roots, then is the principal ideal $(p(x))$ contained in exactly two maximal ideals?

score 127 · Answer 8 · 2026-03-26 01:12:48

127

Views

How to prove $1$ is in a sum of two ideals related to two disjoint closed subsets of an affine scheme

Published on 26 Mar 2026 - 1:12

score 408 · Answer 9 · 2026-04-10 02:59:46

408

Views

Reference for anti-commutative Binomial Theorem

Published on 10 Apr 2026 - 2:59

score 94 · Answer 10 · 2026-04-15 18:24:42

94

Views

Ring of polynomials finite over ring of elementary symmetric polynomial

Published on 15 Apr 2026 - 18:24

score 189 · Answer 11 · 2026-04-16 23:16:04

189

Views

Proof verification request: complement of multiplicative set is ideal iff the ideal is prime

Published on 16 Apr 2026 - 23:16

score 35 · Answer 12 · 2026-04-16 22:11:38

35

Views

Why images of $\alpha:R_R\to R_R:r\mapsto ra$ are left $R$-modules?

Published on 16 Apr 2026 - 22:11

score 224 · Answer 13 · 2026-04-16 08:45:21

224

Views

is the polynomial $\ x^3 - y^5$ irreducible in $\ \Bbb Q[x, y]$

Published on 16 Apr 2026 - 8:45

score 117 · Answer 14 · 2026-04-17 08:05:33

117

Views

Prove that if $a^2+5b^2 = p$ for some rational prime $p(a,b \neq 0)$ other than 5, then $a+\sqrt{-5}b$ is prime in $\mathbb{Z}[\sqrt{-5}]$.

Published on 17 Apr 2026 - 8:05

score 46 · Answer 15 · 2026-03-25 22:09:44

46

Views

Is this proof on ideal maximality correct?

Published on 25 Mar 2026 - 22:09

List Question

how to check for a primary ideal in a commutative ring

Why the flip between prime and maximal/irreducible?

Idempotents and Direct Sums with Modules

Lie bracket in the universal enveloping lie algebra of $A_1$

Basic decomposition in a ring with unity

Maximal ideals containing a non-constant irreducible polynomial $f$ in $\mathbb{Z}[X]$.

If $p(x) \in \mathbb{Z}[x]$ is of degree $2$ having distinct roots, then is the principal ideal $(p(x))$ contained in exactly two maximal ideals?

How to prove $1$ is in a sum of two ideals related to two disjoint closed subsets of an affine scheme

Reference for anti-commutative Binomial Theorem

Ring of polynomials finite over ring of elementary symmetric polynomial

Proof verification request: complement of multiplicative set is ideal iff the ideal is prime

Why images of $\alpha:R_R\to R_R:r\mapsto ra$ are left $R$-modules?

is the polynomial $\ x^3 - y^5$ irreducible in $\ \Bbb Q[x, y]$

Prove that if $a^2+5b^2 = p$ for some rational prime $p(a,b \neq 0)$ other than 5, then $a+\sqrt{-5}b$ is prime in $\mathbb{Z}[\sqrt{-5}]$.

Is this proof on ideal maximality correct?

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