Strongly Gorenstein flat and Gorenstein FP-injective modules

In this paper, we first study the properties of strongly Gorenstein flat (resp. Gorenstein FP-injective) modules which are special Gorenstein projective (resp. Gorenstein injective) modules, and use them to prove that the global strongly Gorenstein flat dimension and the global Gorenstein FP-injective dimension of a ring R are identical when R is n-FC or commutative coherent. Finally, we show that if R is a commutative Noetherian ring, then, for any R-module M, SGfdRM=GpdRM, and hence SGfdRM< \infty if and only if GfdRM

Strongly Gorenstein flat and Gorenstein FP-injective modules

In this paper, we first study the properties of strongly Gorenstein flat (resp. Gorenstein FP-injective) modules which are special Gorenstein projective (resp. Gorenstein injective) modules, and use them to prove that the global strongly Gorenstein flat dimension and the global Gorenstein FP-injective dimension of a ring R are identical when R is n-FC or commutative coherent. Finally, we show that if R is a commutative Noetherian ring, then, for any R-module M, SGfdRM=GpdRM, and hence SGfdRM< \infty if and only if GfdRM

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  • [1] Auslander, M. and Bridger, M.: Stable Module Theory, Memories of the American Mathematical Society, no. 94. American Mathematical Sociaty, Providence, R.I., 1969.
  • [2] Avramov, L. L. and Martsinkovsky, A.: Absolute, relative, and Tate cohomology of modules of finite Gorenstein dimension. Proc. London Math. Soc. 85, 393–440 (2002).
  • [3] Bennis, D. and Mahdou, N.: Strong Gorenstein projective, injective, and flat modules. J. Pure Appl. Algebra 210, 437–445 (2007).
  • [4] Bennis, D. and Mahdou, N.: Global Gorenstein dimensions. Proc. Amer. Math. Soc. 138(2), 461–465 (2010).
  • [5] Christensen, L. W.: Gorenstein dimensions. Lecture Notes in Math. 1747, Springer-Verlag, Berlin-Heidelberg-New York, 2000.
  • [6] Christensen, L. W., Frankild, A. and Holm, H.: On Gorenstein projective, injective and flat dimensions–A functorial description with applications. J. Algebra 302, 231–279 (2006).
  • [7] Ding, N. Q. and Chen, J. L.: Coherent rings with finite self-FP-injective dimension. Comm. Algebra 24, 2963–2980 (1996).
  • [8] Ding, N. Q. and Chen, J. L.: The flat dimensions of injective modules. Manuscripta Math. 78(2), 165–177 (1993).
  • [9] Ding, N. Q., Li, Y. L. and Mao, L. X.: Strongly Gorenstein flat modules. J. Aust. Math. Soc. 86(3), 323–338 (2009).
  • [10] Mao, L. X. and Ding, N. Q.: Gorenstein FP-injective and Gorenstein flat modules. J. Algebra Appl. 7(4), 491–506 (2008).
  • [11] Enochs, E. E. and Jenda, O. M. G.: Gorensein injective and projective modules. Math. Z. 220(4), 611–633 (1995).
  • [12] Enochs, E. E. and Jenda, O. M. G.: Relative Homological Algebra, GEM 30. Walter de Gruyter, Berlin-New York, 2000.
  • [13] Esmkhani, M. A. and Tousi, M.: Gorenstein homological dimensions and Auslander categories. J. Algebra 308, 321–329 (2007).
  • [14] Gillespie, J.: Model structures on Modules over Ding-Chen rings. Homology Homotopy Appl. 12(1), 61–73 (2010).
  • [15] Holm, H.: Gorenstein homological dimensions. J. Pure Appl. Algebra 189, 167–193 (2004).
  • [16] Holm, H.: Ring with finite Gorenstein injective dimension, Proc. Amer. Math. Soc. 132, 1279–1283 (2004).
  • [17] Stenstr¨om, B.: Coherent rings and FP-injective modules. J. London Math. Soc. 2, 323–329 (1970).
  • [18] Xu, J.: Flat Covers of Modules. Lecture Notes in Math. 1634, Springer-Verlag, Berlin-Heidelberg-New York, 199