New posts in Projective Module

An isomorphism concerned about any finitely generated projective module

Showing a module is finitely generated and projective

Why is $(X,Y)$ not a projective $\mathbb{Z}[X,Y]$-module?

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

Prove that $\operatorname{Hom}_{\Bbb{Z}}(\Bbb{Q},\Bbb{Z}) = 0$ and show that $\Bbb{Q}$ is not a projective $\Bbb{Z}$-module.

Is a finitely generated projective module a direct summand of a *finitely generated* free module?

Finitely generated projective modules are locally free