List questions from projective-module

Published on 25 Jul 2017 - 3:37

160

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Dualizing simple module which is given by primitive idempotent

Published on 26 Mar 2026 - 18:50

108

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Why are some modules not projective?

Published on 29 Mar 2026 - 6:30

207

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why is this quotient module finite?

Published on 04 Sep 2017 - 20:29

171

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Find all projective modules.

Published on 18 Sep 2017 - 16:13

103

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Modules and homomorphism on a domain

Published on 27 Mar 2026 - 13:20

75

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Unclear use of the right exactness of $\otimes_R$, isomorphism,projective exact sequence

Published on 27 Mar 2026 - 7:17

243

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Ext, obstruction for what is Ext?, Tor is an obstruction for being flat

Published on 27 Mar 2026 - 7:14

138

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Is there an alternative proof for that $\prod_{\mathbb N}\mathbb Z$ is not a free $\mathbb Z$-module?

Published on 29 Mar 2026 - 8:18

209

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When is countable direct product of projective modules again projective?

Published on 27 Mar 2026 - 22:03

206

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Doubt in Schanuel's Lemma.

Published on 09 Nov 2017 - 18:22

416

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Direct sums in projective modules

Published on 12 Nov 2017 - 23:46

168

Views

Module projective

Published on 29 Mar 2026 - 8:13

36

Views

"Dual function" for an element of an $R$-module

Published on 16 Nov 2017 - 11:21

226

Views

Indecomposable modules over $\mathbb{Z}/p^2\mathbb{Z}[C_p]$

Published on 16 Nov 2017 - 18:35

List Question

Explicit projection from a projective module to an algebra

Dualizing simple module which is given by primitive idempotent

Why are some modules not projective?

why is this quotient module finite?

Find all projective modules.

Modules and homomorphism on a domain

Unclear use of the right exactness of $\otimes_R$, isomorphism,projective exact sequence

Ext, obstruction for what is Ext?, Tor is an obstruction for being flat

Is there an alternative proof for that $\prod_{\mathbb N}\mathbb Z$ is not a free $\mathbb Z$-module?

When is countable direct product of projective modules again projective?

Doubt in Schanuel's Lemma.

Direct sums in projective modules

Module projective

"Dual function" for an element of an $R$-module

Indecomposable modules over $\mathbb{Z}/p^2\mathbb{Z}[C_p]$

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