• 제목/요약/키워드: invertible submodule

검색결과 6건 처리시간 0.017초

t-Prüfer Modules

  • Kim, Myeong Og;Kim, Hwankoo;Oh, Dong Yeol
    • Kyungpook Mathematical Journal
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    • 제53권3호
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    • pp.407-417
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    • 2013
  • In this article, we characterize t-Pr$\ddot{u}$fer modules in the class of faithful multiplication modules. As a corollary, we also characterize Krull modules. Several properties of a $t$-invertible submodule of a faithful multiplication module are given.

ON A QUASI-POWER MODULE

  • PARK CHIN HONG;SHIM HONG TAE
    • Journal of applied mathematics & informatics
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    • 제17권1_2_3호
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    • pp.679-687
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    • 2005
  • In this paper we shall give a new definition for a quasi-power module P(M) and discuss some properties for P(M). The quasi-power module P(M) is a direct sum of invertible quasi-submodules C(H)'s of P(M) and then the quasi-submodule C(H) is also a direct sum of strongly cyclic quasi-submodules of C(H). When M is a quasi-perfect right R-module, we shall see that the quasi-power module P(M) is invertible.

Multiplication Modules and characteristic submodules

  • Park, Young-Soo;Chol, Chang-Woo
    • 대한수학회보
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    • 제32권2호
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    • pp.321-328
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    • 1995
  • In this note all are commutative rings with identity and all modules are unital. Let R be a ring. An R-module M is called a multiplication module if for every submodule N of M there esists an ideal I of R such that N = IM. Clearly the ring R is a multiplication module as a module over itself. Also, it is well known that invertible and more generally profective ideals of R are multiplication R-modules (see [11, Theorem 1]).

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A HOMOLOGICAL CHARACTERIZATION OF KRULL DOMAINS

  • Wang, Fang Gui;Zhou, De Chuan
    • 대한수학회보
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    • 제55권2호
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    • pp.649-657
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    • 2018
  • Let R be a commutative ring. In this paper, the w-projective Basis Lemma for w-projective modules is given. Then it is shown that for a domain, nonzero w-projective ideals and nonzero w-invertible ideals coincide. As an application, it is proved that R is a Krull domain if and only if every submodule of finitely generated projective modules is w-projective.