• 제목/요약/키워드: poor M-cosequence

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Mashhad University, Department of Mathematics;

  • Yassi, M.
    • 대한수학회보
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    • 제38권4호
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    • pp.727-733
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    • 2001
  • Let A be a commutative ring with nonzero identity and let M be an A-module. In this note we show that if $x = x_1, ..., x_n\; and\; y = y_1, ..., y_n$ both M-cosequence such that $Hx^T = y^T\; for\; some\; n\times n$ lower triangular matrix H over A, then the map $\beta_H : \;Ann_M(y_1,..., y_n)\;\rightarrow Ann_M(x_1,..., x_n)$ induced by multiplication by |H| is surjective.

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EXACTNESS THEOREM AND POOR M-COSEQUENCES

  • Khashyarmanesh, K.;Salarian, Sh.
    • 대한수학회지
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    • 제34권4호
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    • pp.949-957
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    • 1997
  • The purpose of this paper is to establish connection between certain complex of modules of generalized fractions and the concept of cosequence in commutative algebra. The main theorem of the paper leads to characterization, in terms of modules of generalized fractions, of regular (co) sequences.

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