Question

If a multiplicative set contains zero, then $S^{-1}A$ is trivial

score 1k · Answer 1 · 2026-04-16 07:22:23

1k

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If a multiplicative set contains zero, then $S^{-1}A$ is trivial

Published on 16 Apr 2026 - 7:22

score 212 · Answer 2 · 2026-04-16 02:47:48

212

Views

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

Published on 16 Apr 2026 - 2:47

score 570 · Answer 3 · 2026-03-25 06:21:00

570

Views

The intersection of any two distinct sets in the partition is the empty set

Published on 25 Mar 2026 - 6:21

score 160 · Answer 4 · 2026-04-14 16:53:27

160

Views

Are disjoint cycles a basis for a permutation? (or can be thought of as)

Published on 14 Apr 2026 - 16:53

score 1.6k · Answer 5 · 2026-04-13 20:49:06

1.6k

Views

A difficulty in understanding that $A_4$ has no subgroup of order 6.

Published on 13 Apr 2026 - 20:49

score 270 · Answer 6 · 2026-04-16 10:47:24

270

Views

Automorphisms of finite groups $Z_n $ , $D_n $ and $S_n $.

Published on 16 Apr 2026 - 10:47

score 62 · Answer 7 · 2026-04-13 12:15:25

62

Views

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

Published on 13 Apr 2026 - 12:15

score 54 · Answer 8 · 2026-04-14 18:53:35

54

Views

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

Published on 14 Apr 2026 - 18:53

score 141 · Answer 9 · 2026-04-15 08:58:28

141

Views

What are the prime divisors of $ (p-1)p^{n-1} $?

Published on 15 Apr 2026 - 8:58

score 2.3k · Answer 10 · 2026-04-14 08:43:03

2.3k

Views

A subgroup $H$ of $G$ is normal iff for all $a,b \in G$, $ab \in H \iff ba \in H$.

Published on 14 Apr 2026 - 8:43

score 325 · Answer 11 · 2026-04-13 06:44:31

325

Views

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

Published on 13 Apr 2026 - 6:44

score 1.2k · Answer 12 · 2026-04-14 23:35:29

1.2k

Views

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

Published on 14 Apr 2026 - 23:35

score 56 · Answer 13 · 2026-04-16 11:09:59

56

Views

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

Published on 16 Apr 2026 - 11:09

score 297 · Answer 14 · 2026-04-15 05:53:33

297

Views

Modules over $k[x]$

Published on 15 Apr 2026 - 5:53

score 2.4k · Answer 15 · 2026-04-11 15:35:15

2.4k

Views

Is the product of all positive rational numbers equal to one?

Published on 11 Apr 2026 - 15:35

List Question

If a multiplicative set contains zero, then $S^{-1}A$ is trivial

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

The intersection of any two distinct sets in the partition is the empty set

Are disjoint cycles a basis for a permutation? (or can be thought of as)

A difficulty in understanding that $A_4$ has no subgroup of order 6.

Automorphisms of finite groups $Z_n $ , $D_n $ and $S_n $.

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

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

What are the prime divisors of $ (p-1)p^{n-1} $?

A subgroup $H$ of $G$ is normal iff for all $a,b \in G$, $ab \in H \iff ba \in H$.

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 $f(2+i)=0$?

Modules over $k[x]$

Is the product of all positive rational numbers equal to one?

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