This paper deals with radical
classes consisting of regular rings, all of whose primitive homomorphic images are
artinian (such rings will be called PA-regular). Noteworthy examples of such
radical classes include, for each n, the class of regular rings satisfying the
condition
and thus, in particular, the class of all strongly regular rings. It is shown that every
radical class ℛ consisting of PA- regular rings is hereditary, and is the lower radical
class defined by those of its members which are isomorphic to matrix rings of
strongly regular rings with identities.
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