Rings whose proper factors are right perfect
Tom 122 / 2011
                    
                    
                        Colloquium Mathematicum 122 (2011), 191-202                    
                                        
                        MSC: Primary 16L30.                    
                                        
                        DOI: 10.4064/cm122-2-4                    
                                    
                                                Streszczenie
We show that practically all the properties of almost perfect rings, proved by Bazzoni and Salce [Colloq. Math. 95 (2003)] for commutative rings, also hold in the non-commutative setting.