Is there a name for the following property of a commutative ring $R$:
its Jacobson radical $J$ is nilpotent, and $R/J$ is semi-simple?
(It is easily equivalent to: $R$ is a finite product of commutative local rings with nilpotent radical.)
ac.commutative-algebrara.rings-and-algebras
Is there a name for the following property of a commutative ring $R$:
its Jacobson radical $J$ is nilpotent, and $R/J$ is semi-simple?
(It is easily equivalent to: $R$ is a finite product of commutative local rings with nilpotent radical.)
Best Answer
The word for a ring $R$ whose Jacobson radical $J$ is nilpotent and such that $R/J$ is semisimple is semiprimary. I don’t know if there is a more special word for the commutative case.