Gorenstein $\pi [T]$-projectivity with respect to a tilting module

Abstract

Let $T$ be a tilting module. In this paper, Gorenstein $\pi [T]$-projective modules are introduced and some of their basic properties are studied. Moreover, some characterizations of rings over which all modules are Gorenstein $\pi [T]$-projective are given. For instance, on the $T$-cocoherent rings, it is proved that the Gorenstein $\pi [T]$-projectivity of all $R$-modules is equivalent to the $\pi [T]$-projectivity of $\sigma [T]$-injective as a module.

12 pages