Published online by Cambridge University Press: 15 December 2009
In basic homological algebra, projective, injective and flat modules play an important and fundamental role. In this paper, we discuss some properties of Gorenstein projective, injective and flat modules and study some connections between Gorenstein injective and Gorenstein flat modules. We also investigate some connections between Gorenstein projective, injective and flat modules under change of rings.
Research supported by National Natural Science Foundation of China, TRAPOYT and the Cultivation Fund of Key Scientific and Technical Innovation Project, Ministry of Education of China.