@article{article_266241, title={DP-PROJECTIVE MODULES AND DIMENSIONS}, journal={International Electronic Journal of Algebra}, volume={15}, pages={101–116}, year={2014}, DOI={10.24330/ieja.266241}, author={Zhao, Tiwei}, keywords={DP-projective module, semisimple ring, DP-projective dimension}, abstract={In this paper, we introduce the notion of DP-projective modules. It is shown that a left R-module M over a ring R is DP-projective if and only if it is a cokernel of a Ding projective preenvelope f : A → B with B projective. It is also shown that a ring R is semisimple if and only if every module is DP-projective. Moreover, we investigate (global) DP-projective dimensions of modules and rings. It is shown that l.DP-dim(R) = l.DP-ID(R). In addition, other applications of those dimensions defined in this way are presented.}, number={15}, publisher={Abdullah HARMANCI}