Question

A question about the quotient of two chain complexes of $R$-modules

score 591 · Answer 1 · 2026-04-13 05:52:09

591

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A question about the quotient of two chain complexes of $R$-modules

Published on 13 Apr 2026 - 5:52

score 209 · Answer 2 · 2026-04-14 09:10:59

209

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Submodule of a finitely generated module over a Dedekind domain

Published on 14 Apr 2026 - 9:10

score 215 · Answer 3 · 2026-04-17 14:23:34

215

Views

By Zorn's Lemma, a module can be finitely generated by its some elements and a submodule?

Published on 17 Apr 2026 - 14:23

score 1k · Answer 4 · 2026-04-14 08:18:40

1k

Views

Group ring C[Z/n] and Artin-Wedderburn decomposition

Published on 14 Apr 2026 - 8:18

score 431 · Answer 5 · 2026-04-17 15:21:49

431

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The dimension of vector space $F^{X}$.

Published on 17 Apr 2026 - 15:21

score 269 · Answer 6 · 2026-04-15 06:35:50

269

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Prove that if M is irreducible but not cyclic, then for every $r \in R$ and $m \in M$ we have $ rm = 0.$

Published on 15 Apr 2026 - 6:35

score 62 · Answer 7 · 2026-04-14 01:29:30

62

Views

Is the sequence of $\mathbb Z$-modules below exact?

Published on 14 Apr 2026 - 1:29

score 207 · Answer 8 · 2026-04-14 08:37:12

207

Views

On the existence of finitely generated modules with finite injective dimension

Published on 14 Apr 2026 - 8:37

score 73 · Answer 9 · 2026-04-10 21:16:11

73

Views

How to define an exact sequence of $\mathbb Z$-modules?

Published on 10 Apr 2026 - 21:16

score 221 · Answer 10 · 2026-04-09 15:30:16

221

Views

Sum of free submodules of a module over a PID

Published on 09 Apr 2026 - 15:30

score 436 · Answer 11 · 2026-04-16 11:12:35

436

Views

Kernel of a map on tensor product of modules

Published on 16 Apr 2026 - 11:12

score 221 · Answer 12 · 2026-04-11 22:09:24

221

Views

Period of a module vs element

Published on 11 Apr 2026 - 22:09

score 2k · Answer 13 · 2026-04-17 01:00:05

2k

Views

How to prove tensor product is exact when acted on split short exact sequence?

Published on 17 Apr 2026 - 1:00

score 548 · Answer 14 · 2026-04-13 01:09:03

548

Views

Two short exact sequences with projective objects in the middle

Published on 13 Apr 2026 - 1:09

score 1k · Answer 15 · 2026-03-26 08:03:33

1k

Views

How to calculate sum of combinations with different n and k

Published on 26 Mar 2026 - 8:03

List Question

A question about the quotient of two chain complexes of $R$-modules

Submodule of a finitely generated module over a Dedekind domain

By Zorn's Lemma, a module can be finitely generated by its some elements and a submodule?

Group ring C[Z/n] and Artin-Wedderburn decomposition

The dimension of vector space $F^{X}$.

Prove that if M is irreducible but not cyclic, then for every $r \in R$ and $m \in M$ we have $ rm = 0.$

Is the sequence of $\mathbb Z$-modules below exact?

On the existence of finitely generated modules with finite injective dimension

How to define an exact sequence of $\mathbb Z$-modules?

Sum of free submodules of a module over a PID

Kernel of a map on tensor product of modules

Period of a module vs element

How to prove tensor product is exact when acted on split short exact sequence?

Two short exact sequences with projective objects in the middle

How to calculate sum of combinations with different n and k

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