Let \(R:=\mathbb {Q}[x]/(x^3-1)\). Give an example of a finitely generated projective \(R\)-module that is not free.
Question
Math 6310 • Algebra
Spring 2022 • Question 3
Question
Spring 2022 • Question 3
Let \(R:=\mathbb {Q}[x]/(x^3-1)\). Give an example of a finitely generated projective \(R\)-module that is not free.