Question

Third Isomorphism Theorem for Rings confusions

score 658 · Answer 1 · 2026-03-22 19:00:54

658

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Third Isomorphism Theorem for Rings confusions

Published on 22 Mar 2026 - 19:00

score 159 · Answer 2 · 2026-03-25 03:01:02

159

Views

How to show that $h$ is onto?

Published on 25 Mar 2026 - 3:01

score 166 · Answer 3 · 2026-03-19 23:41:27

166

Views

Associated primes to principal ideals in a Noetherian domain

Published on 19 Mar 2026 - 23:41

score 209 · Answer 4 · 2026-03-25 11:08:59

209

Views

For a countably infinite dimensional vector space, the localisation of $A= End_k(V)$ at surjective endomorphisms is the zero ring

Published on 25 Mar 2026 - 11:08

score 60 · Answer 5 · 2026-03-25 01:18:22

60

Views

What are the primes of $\mathbb{Z}[\sqrt{-p}\colon \text{$p$ prime}]$?

Published on 25 Mar 2026 - 1:18

score 52 · Answer 6 · 2026-03-25 14:12:47

52

Views

If $R = k[x]_{(x)}$, why is $R_{(0)}\cong k(x)$?

Published on 25 Mar 2026 - 14:12

score 322 · Answer 7 · 2018-02-18 15:37:33

322

Views

Let $V$ be an n-dimensional vector space over a field $K$. Why does this definition make sense?

Published on 18 Feb 2018 - 15:37

score 1.2k · Answer 8 · 2018-02-18 15:43:59

1.2k

Views

Prove that the set$ (Z_p,+_p,•_p)$ is a field

Published on 18 Feb 2018 - 15:43

score 53 · Answer 9 · 2018-02-18 16:10:38

53

Views

What are the polynomials $f$ in $\mathbb{R}[x]$ such that $f(2+i)=0$?

Published on 18 Feb 2018 - 16:10

score 77 · Answer 10 · 2018-02-18 16:32:47

77

Views

How to find the prime ideals of $\mathbb{Z}[i]$ using the associated map of spectra?

Published on 18 Feb 2018 - 16:32

score 390 · Answer 11 · 2026-03-25 06:10:37

390

Views

$\mathbb{Z}_p$ not isomorphic to $\mathbb{F}_p|[t]|$

Published on 25 Mar 2026 - 6:10

score 221 · Answer 12 · 2026-03-23 08:54:10

221

Views

Isomorphism from $R[x,y] / (x, y - x^2)$ to $R$

Published on 23 Mar 2026 - 8:54

score 304 · Answer 13 · 2026-03-24 22:08:35

304

Views

Finding ring homomorphisms $\mathbb{Z}\to\mathbb{Z}/n\mathbb{Z}$

Published on 24 Mar 2026 - 22:08

score 3.1k · Answer 14 · 2026-03-24 22:01:19

3.1k

Views

Can there be an onto homomorphism from a ring without unity to a ring with unity?

Published on 24 Mar 2026 - 22:01

score 51 · Answer 15 · 2026-03-23 05:50:20

51

Views

A local homomorphism that induces a continuous embedding of complete discrete valuation fields

Published on 23 Mar 2026 - 5:50

List Question

Third Isomorphism Theorem for Rings confusions

How to show that $h$ is onto?

Associated primes to principal ideals in a Noetherian domain

For a countably infinite dimensional vector space, the localisation of $A= End_k(V)$ at surjective endomorphisms is the zero ring

What are the primes of $\mathbb{Z}[\sqrt{-p}\colon \text{$p$ prime}]$?

If $R = k[x]_{(x)}$, why is $R_{(0)}\cong k(x)$?

Let $V$ be an n-dimensional vector space over a field $K$. Why does this definition make sense?

Prove that the set$ (Z_p,+_p,•_p)$ is a field

What are the polynomials $f$ in $\mathbb{R}[x]$ such that $f(2+i)=0$?

How to find the prime ideals of $\mathbb{Z}[i]$ using the associated map of spectra?

$\mathbb{Z}_p$ not isomorphic to $\mathbb{F}_p|[t]|$

Isomorphism from $R[x,y] / (x, y - x^2)$ to $R$

Finding ring homomorphisms $\mathbb{Z}\to\mathbb{Z}/n\mathbb{Z}$

Can there be an onto homomorphism from a ring without unity to a ring with unity?

A local homomorphism that induces a continuous embedding of complete discrete valuation fields

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