2017/10/26 by Gillespie, James · 1 citation
#FOS: Mathematics #Rings and Algebras (math.RA)
paper · doi:10.48550/arxiv.1710.09899
We introduce what is meant by an AC-Gorenstein ring. It is a generalized notion of Gorenstein ring which is compatible with the Gorenstein AC-injective and Gorenstein AC-projective modules of Bravo-Gillespie-Hovey. It is also compatible with the notion of n-coherent rings introduced by Bravo-Perez: So a 0-coherent AC-Gorenstein ring is precisely a usual Gorenstein ring in the sense of Iwanaga, while a 1-coherent AC-Gorenstein ring is precisely a Ding-Chen ring. We show that any AC-Gorenstein ring admits a stable module category that is compactly generated and is the homotopy category of two Quillen equivalent abelian model category structures. One is projective with cofibrant objects the Gorenstein AC-projective modules while the other is an injective model structure with fibrant objects the Gorenstein AC-injectives.