Journal of Lanzhou University of Technology ›› 2020, Vol. 46 ›› Issue (6): 153-158.

• Scientific • Previous Articles     Next Articles

Projectively coresolved Gorenstein flat complexes

WU De-jun, ZHAO Zi-hong   

  1. School of Science, Lanzhou Univ. of Tech., Lanzhou 730050, China
  • Received:2019-09-18 Online:2020-12-28 Published:2021-01-07

Abstract: The concept of projectively coresolved Gorenstein flat complex is introduced. Over an arbitrary associate ring R, it is proven that G is a projectively coresolved Gorenstein flat complex if and only if each R-module Gm is a projective coresolved Gorenstein flat module for all m∈Z.Meanwhile, basic properties of projectively coresolved Gorenstein flat complexes are studied, and the relationship between projectively coresolved Gorenstein flat dimension of complex G and projectively coresolved Gorenstein flat dimension of each R-module Gm is discussed.

Key words: PGF-complex, preenvelope, projective complex

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