Abstract
A ring R is called generalized ZI (or GZI for short) if for any
a 2 N(R) and b 2 R, ab = 0 implies aRba = 0, which is a proper generalization
of ZI rings. In this paper, many properties of GZI rings are introduced, some
known results are extended. Further, we introduce generalized GZI rings
as a generalization of GZI rings, and quasi-abel rings as a generalization of
generalized GZI rings. Some important results on Abel rings are extended to
generalized GZI rings and quasi-abel rings.