2 papers
math.AC2015
Gorenstein dimensions of unbounded complexes and faithfully flat change of base (With an appendix by Driss Bennis)
Lars Winther Christensen, Fatih Koksal, Li Liang
For a commutative ring R and a faithfully flat R-algebra S we prove, under mild extra assumptions, that an R-module M is Gorenstein flat if and only if the left S-module S\otimes M…
math.AC2014
Injective Modules under Faithfully Flat Ring Extensions
Lars Winther Christensen, Fatih Koksal
Let R be a commutative ring and S be an R-algebra. It is well-known that if N is an injective R-module, then Hom(S,N) is an injective S-module. The converse is not true, not even i…