List questions from projective-module

Published on 13 Apr 2026 - 17:36

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Projective Modules, Annihilators, and Idempotents

Published on 10 Apr 2026 - 12:49

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Module has finitely generated projective resolution

Published on 11 Apr 2026 - 6:47

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Why are projective modules cohomologically trivial?

Published on 13 Apr 2026 - 23:40

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If $A \cong A^*$, is every projective module also injective?

Published on 12 Apr 2026 - 17:34

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Prove that free modules are projective

Published on 13 Apr 2026 - 20:06

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Direct sum of projective module

Published on 16 Apr 2026 - 6:36

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A problem about an $R$-module that is both injective and projective.

Published on 27 Mar 2026 - 5:37

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Every projective f. g. module is f. p.

Published on 16 Apr 2026 - 23:25

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Intuitive Understanding of Projective Modules

Published on 13 Apr 2026 - 3:17

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Prove that if $P$ and $Q$ are projective and finitely generated $R$-modules then $\operatorname{Hom}_{R}(P,Q)$ is projective and finitely generated.

Published on 15 Apr 2026 - 23:30

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Equivalent definitions of a projective module

Published on 15 Apr 2026 - 7:13

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A noetherian ring is self-injective if and only if all projectives are injective

Published on 27 Mar 2026 - 11:48

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T. Y. Lam's definition for the rank of a projective module

Published on 15 Apr 2026 - 1:38

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Torsion-free and projective modules over a Dedekind domain

Published on 13 Apr 2026 - 5:05

List Question

Free modules are projective.

Projective Modules, Annihilators, and Idempotents

Module has finitely generated projective resolution

Why are projective modules cohomologically trivial?

If $A \cong A^*$, is every projective module also injective?

Prove that free modules are projective

Direct sum of projective module

A problem about an $R$-module that is both injective and projective.

Every projective f. g. module is f. p.

Intuitive Understanding of Projective Modules

Prove that if $P$ and $Q$ are projective and finitely generated $R$-modules then $\operatorname{Hom}_{R}(P,Q)$ is projective and finitely generated.

Equivalent definitions of a projective module

A noetherian ring is self-injective if and only if all projectives are injective

T. Y. Lam's definition for the rank of a projective module

Torsion-free and projective modules over a Dedekind domain

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