Characterizations of semiperfect and perfect rings

• Autores: Weimin Xue
• Localización: Publicacions matematiques, ISSN 0214-1493, Vol. 40, Nº 1, 1996, págs. 115-125
• Idioma: inglés
• Títulos paralelos:
  • Caracterizaciones de anillos semiperfectos y perfectos
• Enlaces
  • Texto completo
• Resumen

  • We characterize semiperfect modules, semiperfect rings, and perfect rings using locally projective covers and generalized locally projective covers, where locally projective modules were introduced by Zimmermann-Huisgen and generalized locally projective coves are adapted from Azumaya's generalized projective covers