11 Let A be a commutative ring and M an A module Define the

Last updated: 12/19/2022

11 Let A be a commutative ring and M an A module Define the support of M by supp M p e spec A M 0 If M is finite over A show that supp M ann M where ann M is the annihilator of M in A that is the set of elements a E A such that aM 0