Since several years, Artinian semisirnple rings have drawn the attention of various authors (cf. for example, [l]-[10]). The purpose of this paper is to characterize Artinian semisimple rings in terms of P- in jectivi...Since several years, Artinian semisirnple rings have drawn the attention of various authors (cf. for example, [l]-[10]). The purpose of this paper is to characterize Artinian semisimple rings in terms of P- in jectivity. New characteri-zations of Artinian semisimple rings are obtained. Necessary and sufficient con-ditions for prime rings to be Artinian simple are given. Several interesting pro-perties of P- injective rings are derived.展开更多
基金Research is supported by National Natural Science Foundation of China (No. 19970128)Natural Science Foundations [(No. 011438), (No. 021073), (No. Z02017)] of Guangdong Province, China
基金Supported by Projects from NSF of China(10571147)Specialized Research Fund for Doctoral Programof Higher Education of China(20094301110001)+1 种基金NSF of Hunan Province (09JJ3002)Hunan Provincial Innovation Foundation for Postgraduate(S2008yjscx02)
文摘Since several years, Artinian semisirnple rings have drawn the attention of various authors (cf. for example, [l]-[10]). The purpose of this paper is to characterize Artinian semisimple rings in terms of P- in jectivity. New characteri-zations of Artinian semisimple rings are obtained. Necessary and sufficient con-ditions for prime rings to be Artinian simple are given. Several interesting pro-perties of P- injective rings are derived.