Title of article :
Properties of RD-projective and RD-injective modules
Author/Authors :
Mao, Lixin Nanjing Institute of Technology - Institute of Mathematics, CHINA
Abstract :
In this paper, we first study RD-projective and RD-injective modules using, among other things, covers and envelopes. Some new characterizations for them are obtained. Then we introduce the RD-projective and RD-injective dimensions for modules and rings. The relations between the RD-homological dimensions and other homological dimensions are also investigated.
Keywords :
RD , projective module , RD , injective module , RD , flat module , RD , projective dimension , RD , injective dimension , (pre)envelope , (pre)cover.
Journal title :
Turkish Journal of Mathematics
Journal title :
Turkish Journal of Mathematics
