Question

Concerning 'a change of variables'

score 70 · Answer 1 · 2018-12-31 11:06:17

70

Views

Concerning 'a change of variables'

Published on 31 Dec 2018 - 11:06

score 97 · Answer 2 · 2018-12-31 23:10:19

97

Views

Determining whether a subring with a certain property is a UFD

Published on 31 Dec 2018 - 23:10

score 221 · Answer 3 · 2019-01-01 02:04:44

221

Views

The group of units of $\{a+bi\sqrt{2}:a,b\in\mathbb{Z}\}$ is $\{1,-1\}$.

Published on 01 Jan 2019 - 2:04

score 197 · Answer 4 · 2026-03-25 01:17:17

197

Views

No onto map between group algebras $FS_5$ onto $M_6(F)$.

Published on 25 Mar 2026 - 1:17

score 113 · Answer 5 · 2026-03-29 22:28:49

113

Views

Does there exist an element of order 4 in a finite ring with characteristic 2?

Published on 29 Mar 2026 - 22:28

score 749 · Answer 6 · 2019-01-02 00:32:13

749

Views

Show that $(x)$ is a prime ideal in $\mathbb{Z}[x]$ (the polynomials with integer coefs) which is not maximal.

Published on 02 Jan 2019 - 0:32

score 87 · Answer 7 · 2026-03-30 11:57:14

87

Views

Given $p,q \in R$, when $(p,q) \subseteq k[p,q]$?

Published on 30 Mar 2026 - 11:57

score 509 · Answer 8 · 2026-03-25 14:27:03

509

Views

On injective module homomorphism $M^m \to M^n$ for a faithful, finitely generated, non-zero module $M$ over a commutative ring

Published on 25 Mar 2026 - 14:27

score 936 · Answer 9 · 2019-01-02 07:15:12

936

Views

Suppose that $F$ is a field with $27$ elements. Show that for every element $a \in F$, $5a = −a$

Published on 02 Jan 2019 - 7:15

score 2.3k · Answer 10 · 2026-03-28 01:07:41

2.3k

Views

Why doesn't the definition "$p$ is called 'prime' if $p\mid ab\implies p\mid a\,\text{ or }\,p\mid b$" hold up when we square numbers?

Published on 28 Mar 2026 - 1:07

score 485 · Answer 11 · 2019-01-02 10:47:06

Suppose R is a ring, in which for any nonzero a and b in R the equation ax=b has an answer. prove that R doesnt have left or right zero divisor.

score 102 · Answer 12 · 2019-01-02 12:55:33

102

Views

What is the locus of a map?

Published on 02 Jan 2019 - 12:55

score 1.7k · Answer 13 · 2026-03-27 04:17:38

1.7k

Views

Proving that the radical of an ideal is an ideal

Published on 27 Mar 2026 - 4:17

score 36 · Answer 14 · 2019-01-03 08:03:43

36

Views

Ring Theory: Is the ring $S$ a prime ring? Ref. Page no. 8 (Section 2) Neal H. McCoy "The Theory of Rings"

Published on 03 Jan 2019 - 8:03

score 637 · Answer 15 · 2026-03-25 04:36:48

637

Views

What will be the smallest ring containing two rings?

Published on 25 Mar 2026 - 4:36

List Question

Concerning 'a change of variables'

Determining whether a subring with a certain property is a UFD

The group of units of $\{a+bi\sqrt{2}:a,b\in\mathbb{Z}\}$ is $\{1,-1\}$.

No onto map between group algebras $FS_5$ onto $M_6(F)$.

Does there exist an element of order 4 in a finite ring with characteristic 2?

Show that $(x)$ is a prime ideal in $\mathbb{Z}[x]$ (the polynomials with integer coefs) which is not maximal.

Given $p,q \in R$, when $(p,q) \subseteq k[p,q]$?

On injective module homomorphism $M^m \to M^n$ for a faithful, finitely generated, non-zero module $M$ over a commutative ring

Suppose that $F$ is a field with $27$ elements. Show that for every element $a \in F$, $5a = −a$

Why doesn't the definition "$p$ is called 'prime' if $p\mid ab\implies p\mid a\,\text{ or }\,p\mid b$" hold up when we square numbers?

Suppose R is a ring, in which for any nonzero a and b in R the equation ax=b has an answer. prove that R doesnt have left or right zero divisor.

What is the locus of a map?

Proving that the radical of an ideal is an ideal

Ring Theory: Is the ring $S$ a prime ring? Ref. Page no. 8 (Section 2) Neal H. McCoy "The Theory of Rings"

What will be the smallest ring containing two rings?

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