On the ring R with P(R) = 0

References

• Huanyin , Chen and Wenting , Tong . 1994 . The structure of modules . Sicence in China , 36 (6) : 683 – 692 .
   Google Scholar
• Lianggui , Feng . 1994 . The injeetive radical of a module . J.of Jiangxi Normal University , 18 (2) : 147 – 151 .
   Google Scholar
• Chase , S. U. 1960 . Direct products of modules . Trans. Amer-Math. Soc. , 97 (2) : 911 – 919 .
   Google Scholar
• Wenting , Tong . 1990 . PF-rings and the Grothendieck groups of group rings . J. Math, Res. Exposition , 10 (2) : 157 – 162 .
   Google Scholar
• Wenting , Tong . 1989 . Rings in which finitely generated projective modules are free . J. Math. Res. Exposition , 9 (3) : 319 – 323 .
   Google Scholar
• Kaplansky , I. 1958 . Projective modules . Math. Ann. , 68 (3) : 372 – 377 .
   Web of Science ®Google Scholar
• Goodearl , K. R. 1976 . Ring theory: Nonsingular rings and modules . Monographs Textbooks Pure Appl. Math. , 33 (3)
   Google Scholar
• Nanqing , Ding and Jianlong , Chen . 1993 . The homologicai dimensions of simple modules . Bull. Austral. Math. Soc , 48 (2) : 265 – 274 .
   Web of Science ®Google Scholar