Question

A problem regarding the product of all the elements of $U_n$ for some selected $n$

score 98 · Answer 1 · 2026-03-25 10:57:23

98

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A problem regarding the product of all the elements of $U_n$ for some selected $n$

Published on 25 Mar 2026 - 10:57

score 103 · Answer 2 · 2026-02-23 06:34:50

103

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Symplectic Forms on Abelian Groups

Published on 23 Feb 2026 - 6:34

score 70 · Answer 3 · 2020-04-09 05:30:36

70

Views

Prove that $\mathrm{rank}(A)=\dim(\mathbb{Q}\otimes_{\mathbb{Z}}A)$

Published on 09 Apr 2020 - 5:30

score 57 · Answer 4 · 2026-03-30 02:58:52

57

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Finite subset is a finitely generated group proposition

Published on 30 Mar 2026 - 2:58

score 198 · Answer 5 · 2020-04-09 15:01:38

198

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Proof that a set of matrices form a group. Is it a Lie group? Calculate the generators

Published on 09 Apr 2020 - 15:01

score 39 · Answer 6 · 2020-04-10 00:56:00

39

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How to find the group structure of $G$ when you know $H, K$ and $G/H \simeq K$

Published on 10 Apr 2020 - 0:56

score 99 · Answer 7 · 2020-04-11 06:37:56

99

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Understanding the Implication of Being Abelian of A Quotient Group

Published on 11 Apr 2020 - 6:37

score 171 · Answer 8 · 2026-03-25 23:58:45

171

Views

Is there a functor $F$ preserving finite direct sums but not split exact sequences, for which $F\mathbb{Z}$ is free and finitely generated?

Published on 25 Mar 2026 - 23:58

score 59 · Answer 9 · 2026-03-26 12:34:03

59

Views

Factoring by subgroups of subgroups

Published on 26 Mar 2026 - 12:34

score 188 · Answer 10 · 2026-03-26 12:41:11

188

Views

Free group over a set of two elements is abelian

Published on 26 Mar 2026 - 12:41

score 78 · Answer 11 · 2026-03-27 07:17:05

78

Views

Two possibilities of $X$ to make the sequence $0\longrightarrow\mathbb{Z}\longrightarrow X\longrightarrow\mathbb{Z}_{2}\longrightarrow 0$ exact.

Published on 27 Mar 2026 - 7:17

score 320 · Answer 12 · 2026-03-26 07:33:54

320

Views

Duality for free abelian groups and for finite abelian groups

Published on 26 Mar 2026 - 7:33

score 65 · Answer 13 · 2026-03-25 23:53:07

65

Views

Does a functor which is additive by arbitrary isomorphism restrict and corestrict to an actually additive functor?

Published on 25 Mar 2026 - 23:53

score 131 · Answer 14 · 2020-04-13 13:46:40

131

Views

Wilson's Theorem for Groups in the non-Abelian setting

Published on 13 Apr 2020 - 13:46

score 31 · Answer 15 · 2026-03-27 12:30:19

31

Views

"Minimal" type rank of finitely generated abelian groups with torsion

Published on 27 Mar 2026 - 12:30

List Question

A problem regarding the product of all the elements of $U_n$ for some selected $n$

Symplectic Forms on Abelian Groups

Prove that $\mathrm{rank}(A)=\dim(\mathbb{Q}\otimes_{\mathbb{Z}}A)$

Finite subset is a finitely generated group proposition

Proof that a set of matrices form a group. Is it a Lie group? Calculate the generators

How to find the group structure of $G$ when you know $H, K$ and $G/H \simeq K$

Understanding the Implication of Being Abelian of A Quotient Group

Is there a functor $F$ preserving finite direct sums but not split exact sequences, for which $F\mathbb{Z}$ is free and finitely generated?

Factoring by subgroups of subgroups

Free group over a set of two elements is abelian

Two possibilities of $X$ to make the sequence $0\longrightarrow\mathbb{Z}\longrightarrow X\longrightarrow\mathbb{Z}_{2}\longrightarrow 0$ exact.

Duality for free abelian groups and for finite abelian groups

Does a functor which is additive by arbitrary isomorphism restrict and corestrict to an actually additive functor?

Wilson's Theorem for Groups in the non-Abelian setting

"Minimal" type rank of finitely generated abelian groups with torsion

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