Question

splitting field for a finite dimensional central simple F-algebra$A$

score 306 · Answer 1 · 2026-04-12 06:20:48

306

Views

splitting field for a finite dimensional central simple F-algebra$A$

Published on 12 Apr 2026 - 6:20

score 1k · Answer 2 · 2026-04-09 00:28:56

1k

Views

Nilradical of a noncommutative Ring

Published on 09 Apr 2026 - 0:28

score 143 · Answer 3 · 2026-04-01 06:26:28

143

Views

How do I manually compute the point doubling of the point (3, 6) on the curve $y^2 = x^3 + 2x + 3$?

Published on 01 Apr 2026 - 6:26

score 441 · Answer 4 · 2026-03-24 23:45:09

441

Views

Mysterious Characterization of $A_5$ inside $S_5$

Published on 24 Mar 2026 - 23:45

score 542 · Answer 5 · 2026-03-26 14:12:14

542

Views

Example of a subgroup of $S_6$, of order $8$.

Published on 26 Mar 2026 - 14:12

score 1.3k · Answer 6 · 2026-04-09 00:03:56

1.3k

Views

How is Carmichael's function subgroup of Euler's Totient function?

Published on 09 Apr 2026 - 0:03

score 73 · Answer 7 · 2026-04-12 07:11:35

73

Views

Finite group generated by two elements; what can we say about another element?

Published on 12 Apr 2026 - 7:11

score 272 · Answer 8 · 2026-04-07 17:05:09

272

Views

Why is $\mathbb{Q}(\sqrt{2})$ not isomorphic to $\mathbb{Q}(\sqrt{3})$?

Published on 07 Apr 2026 - 17:05

score 519 · Answer 9 · 2026-04-09 00:29:22

519

Views

Is $\mathbb{Z}[\frac{1}{2}]$ Noetherian?

Published on 09 Apr 2026 - 0:29

score 221 · Answer 10 · 2026-03-24 23:49:54

221

Views

Is $\phi: \mathbb{F_p}(X) \rightarrow \mathbb{F_p}(X), a \mapsto a$ for $a \in \mathbb{F_p}$ and $X \mapsto X+1$ a field homomorphism?

Published on 24 Mar 2026 - 23:49

score 679 · Answer 11 · 2026-04-09 02:26:22

679

Views

Show that the ideal $(XY+XZ+YZ,XYZ) = (X,Y)(Y,Z)(X,Z)$ and the irreducibility of the vanishing sets of the factors.

Published on 09 Apr 2026 - 2:26

score 429 · Answer 12 · 2026-03-24 23:45:15

429

Views

The group generated by a and b is the same as the group generated by ab and b

Published on 24 Mar 2026 - 23:45

score 118 · Answer 13 · 2026-04-11 22:46:45

118

Views

Showing that elements are generators of a group

Published on 11 Apr 2026 - 22:46

score 554 · Answer 14 · 2026-04-12 06:50:25

554

Views

Every finitely generated $R$-module has simple quotient

Published on 12 Apr 2026 - 6:50

score 91 · Answer 15 · 2026-04-12 04:46:49

91

Views

$\bigoplus_{i=1}^\infty\mathbb{Z}\not\cong\prod_{i=1}^\infty\mathbb{Z}$

Published on 12 Apr 2026 - 4:46

List Question

splitting field for a finite dimensional central simple F-algebra$A$

Nilradical of a noncommutative Ring

How do I manually compute the point doubling of the point (3, 6) on the curve $y^2 = x^3 + 2x + 3$?

Mysterious Characterization of $A_5$ inside $S_5$

Example of a subgroup of $S_6$, of order $8$.

How is Carmichael's function subgroup of Euler's Totient function?

Finite group generated by two elements; what can we say about another element?

Why is $\mathbb{Q}(\sqrt{2})$ not isomorphic to $\mathbb{Q}(\sqrt{3})$?

Is $\mathbb{Z}[\frac{1}{2}]$ Noetherian?

Is $\phi: \mathbb{F_p}(X) \rightarrow \mathbb{F_p}(X), a \mapsto a$ for $a \in \mathbb{F_p}$ and $X \mapsto X+1$ a field homomorphism?

Show that the ideal $(XY+XZ+YZ,XYZ) = (X,Y)(Y,Z)(X,Z)$ and the irreducibility of the vanishing sets of the factors.

The group generated by a and b is the same as the group generated by ab and b

Showing that elements are generators of a group

Every finitely generated $R$-module has simple quotient

$\bigoplus_{i=1}^\infty\mathbb{Z}\not\cong\prod_{i=1}^\infty\mathbb{Z}$

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