摘要
本文在李尚莹(1996)和Lin(1977)的基础上,引进余模的投射维数概念.
This paper introduces the projective dimension of comodules and characterizes hereditary coalgebra by the concept of projective comodules.
出处
《四川师范大学学报(自然科学版)》
CAS
CSCD
1997年第4期60-62,共3页
Journal of Sichuan Normal University(Natural Science)