Geodesic
A simple ring separating certain radicals
Glasgow mathematical journal, Tome 16 (1975) no. 1, pp. 29-31

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All rings considered will be associative. For a class M of rings let UM be the class of all rings having no non-zero homomorphic image in M. A hereditary class M of prime rings is called a “special class” [see 1, p. 191] if it has the property that when I ∈ M with I an ideal of a ring R, then R/I* ∈ Mwhere I* is the annihilator of I in R, and the corresponding radical class UM is then a “special radical”. Let S be the class of all subdirectly irreducible rings with simple heart. 
Heyman, G. A. P.; Leavitt, W. G. A simple ring separating certain radicals. Glasgow mathematical journal, Tome 16 (1975) no. 1, pp. 29-31. doi: 10.1017/S0017089500002469
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