When do Foxby classes coincide with the classes of modules of finite Gorenstein dimensions? (Q2374205)

From MaRDI portal
scientific article
Language Label Description Also known as
English
When do Foxby classes coincide with the classes of modules of finite Gorenstein dimensions?
scientific article

    Statements

    When do Foxby classes coincide with the classes of modules of finite Gorenstein dimensions? (English)
    0 references
    0 references
    0 references
    0 references
    14 December 2016
    0 references
    It is well known that, over a commutative Noetherian local Cohen-Macaulay ring admitting a dualizing module, the Auslander class (resp., Bass class) is precisely the class of modules with finite Gorenstein projective (resp., Gorenstein injective) dimension (see [\textit{E. E. Enochs} et al., Trans. Am. Math. Soc. 348, No. 8, 3223--3234 (1996; Zbl 0862.13004)]). This result was generalized by \textit{E. E. Enochs} et al. [Proc. Edinb. Math. Soc., II. Ser. 48, No. 1, 75--90 (2005; Zbl 1094.16001)]. They proved that the above result is true over a Noetherian (not necessarily commutative) \(n\)-perfect ring with a dualizing bimodule. In the paper under review, the authors further generalize the above result by considering Foxby classes with respect to a given module (not necessarily a dualizing module). For a left \(R\)-module \(C\) with some extra conditions on \(C\) and the endomorphism ring \(S=\text{End}_R(C)\), they give sufficient and necessary conditions for the Auslander class (resp., Bass class) with respect to \(C\) to be precisely the class of modules with finite Gorenstein projective (resp., Gorenstein injective) dimension. The authors also study when the Auslander class and Bass class with respect to \(C\) are (pre)covering and (pre)enveloping, and give some sufficient conditions.
    0 references
    0 references
    Auslander class
    0 references
    Bass class
    0 references
    Gorenstein dimension
    0 references
    cover
    0 references
    envelope
    0 references

    Identifiers