Homotopy categories of unbounded complexes of projective modules

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Abstract

We develop in this paper a stable theory for projective complexes, by which we mean to consider a chain complex of finitely generated projective modules as an object of the factor category of the homotopy category modulo split complexes. As a result of the stable theory we are able to prove that a complex of finitely generated projective modules over a generically Gorenstein ring is exact if and only if its dual complex is exact. This shows the dependence of total reflexivity conditions for modules over a generically Gorenstein ring.
Original languageUndefined/Unknown
JournalarXiv
Publication statusPublished - May 15 2018

Keywords

  • math.AC
  • 13D02, 18G35

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