Question

Quotient of a torsion free module is torsion free

score 457 · Answer 1 · 2026-04-13 12:20:58

457

Views

Quotient of a torsion free module is torsion free

Published on 13 Apr 2026 - 12:20

score 42 · Answer 2 · 2026-04-12 21:29:56

42

Views

Characterization of noetherian modules via short exact sequences (understanding a step in the proof)

Published on 12 Apr 2026 - 21:29

score 49 · Answer 3 · 2026-03-25 23:10:13

49

Views

Prove that if $P\oplus R^m\cong R^\infty $ , then $P\cong R^\infty$

Published on 25 Mar 2026 - 23:10

score 219 · Answer 4 · 2026-03-26 14:30:24

219

Views

Prove that $\Bbb Q$ is an injective object in $\Bbb Z\text{-mod}$ using the following definition.

Published on 26 Mar 2026 - 14:30

score 56 · Answer 5 · 2026-04-13 12:28:36

56

Views

When trying to prove some $M$ is an $A$-module, with $A$ being an algebra, how do I deal with the set of generators of $A$?

Published on 13 Apr 2026 - 12:28

score 1.4k · Answer 6 · 2026-04-12 22:24:04

1.4k

Views

integral of $\arcsin(\sqrt{x/(x+1)})$

Published on 12 Apr 2026 - 22:24

score 184 · Answer 7 · 2026-03-27 13:24:29

184

Views

Dual of a $\mathbb{C}G$-module, can we get $g^{-1}$ outside $\theta(\cdot)$?

Published on 27 Mar 2026 - 13:24

score 141 · Answer 8 · 2020-07-28 17:32:43

141

Views

Modules which are both left and right modules over a noncommutative ring

Published on 28 Jul 2020 - 17:32

score 42 · Answer 9 · 2026-03-25 23:08:55

42

Views

A right $R$ module $M$ has finitely many submodules iff right $R$ module $M^n$ has finitely many submodules for any positive integer $n$.

Published on 25 Mar 2026 - 23:08

score 104 · Answer 10 · 2020-07-29 18:48:45

104

Views

Simple reduced rings which are not domains

Published on 29 Jul 2020 - 18:48

score 806 · Answer 11 · 2026-03-27 23:48:42

806

Views

Integrals of a Hopf algebra: Why that name?

Published on 27 Mar 2026 - 23:48

score 325 · Answer 12 · 2026-03-27 23:48:43

325

Views

Example of a cocommutative, non-unimodular Hopf algebra?

Published on 27 Mar 2026 - 23:48

score 705 · Answer 13 · 2026-04-12 13:00:11

705

Views

Complex representation of a quaternionic matrix

Published on 12 Apr 2026 - 13:00

score 462 · Answer 14 · 2026-04-12 18:18:59

462

Views

Counit for the restriction of scalars, extension of scalars adjunction

Published on 12 Apr 2026 - 18:18

score 238 · Answer 15 · 2026-04-13 05:50:32

238

Views

A monomorphism from an $R$-module to $R$

Published on 13 Apr 2026 - 5:50

List Question

Quotient of a torsion free module is torsion free

Characterization of noetherian modules via short exact sequences (understanding a step in the proof)

Prove that if $P\oplus R^m\cong R^\infty $ , then $P\cong R^\infty$

Prove that $\Bbb Q$ is an injective object in $\Bbb Z\text{-mod}$ using the following definition.

When trying to prove some $M$ is an $A$-module, with $A$ being an algebra, how do I deal with the set of generators of $A$?

integral of $\arcsin(\sqrt{x/(x+1)})$

Dual of a $\mathbb{C}G$-module, can we get $g^{-1}$ outside $\theta(\cdot)$?

Modules which are both left and right modules over a noncommutative ring

A right $R$ module $M$ has finitely many submodules iff right $R$ module $M^n$ has finitely many submodules for any positive integer $n$.

Simple reduced rings which are not domains

Integrals of a Hopf algebra: Why that name?

Example of a cocommutative, non-unimodular Hopf algebra?

Complex representation of a quaternionic matrix

Counit for the restriction of scalars, extension of scalars adjunction

A monomorphism from an $R$-module to $R$

Trending Questions

Popular # Hahtags

Popular Questions