Exercise 111.12.3. Let $(R, \mathfrak m)$ be a local Noetherian domain. Let $M$ be a finite $R$-module.
If $M$ is torsion free, show that $M$ has depth at least $1$ over $R$.
Give an example with depth equal to $1$.
Exercise 111.12.3. Let $(R, \mathfrak m)$ be a local Noetherian domain. Let $M$ be a finite $R$-module.
If $M$ is torsion free, show that $M$ has depth at least $1$ over $R$.
Give an example with depth equal to $1$.
Comments (0)