• Title/Summary/Keyword: Cousin complexes

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AN ISOMORPHISM OF THE COUSIN COMPLEXES

  • Kim, Dae-Sig
    • Communications of the Korean Mathematical Society
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    • v.12 no.3
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    • pp.491-497
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    • 1997
  • Let $C(F, M)$ and $C(S^{-1}F, S^{-1}M)$ be Cousin complexes for a modula M and a module $S^{-1}M$ over a commutative Noetherian ring with respect to a filtration F and a filtration $S^{-1}F$ respectively. In this paper, it is shown that there is an isomorphism between the Cousin complexes $S^{-1}C(F, M)$ and $C(S^{-1}F, S^{-1}M)$.

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COUSIN COMPLEXES AND GENERALIZED HUGHES COMPLEXES

  • Kim, Dae-Sig;Song, Yeong-Moo
    • Communications of the Korean Mathematical Society
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    • v.9 no.3
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    • pp.503-511
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    • 1994
  • In this paper, the ring A will mean a commutative Noetherian ring with non-zero multiplicative identity, it is understood that the ring homomorphisms respect identity elements and M will denote an A-module. Throughout this paper A and B will denote rings, $f : A \to B$ a ring homomorphism. C(A) (resp. C(B)) presents the category of all A-modules (resp. B-modules) and A-homomorphisms (resp. B-homorphisms) between them. The following ideas will be used without further explanation. B can be regarded as an A-module by means of f and $M\otimesB$ can be regarded as a B-module in the natural way. Furthermore the restriction of scalars provides a functor from C(B) to C(A).

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