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On automorphism-invariant modules

机译:关于自同构不变模块

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Let M and N be two modules. M is called automorphism N-invariant if for any essential submodule A of N, any essential monomorphism f : A -> M can be extended to some g is an element of Hom(N, M). M is called automorphism-invariant if M is automorphism M-invariant. This notion is motivated by automorphism-invariant modules analog discussed in a recent paper by Lee and Zhou [Modules which are invariant under automorphisms of their injective hulls, J. Algebra Appl. 12(2) (2013), 1250159, 9 pp.]. Basic properties of mutually automorphism-invariant modules and automorphism-invariant modules are proved and their connections with pseudo-injective modules are addressed.
机译:令M和N为两个模块。如果对于N的任何基本子模块A,任何基本单态f:M-可以扩展到g是Hom(N,M)的元素,则M称为自同构N不变。如果M是自同构M不变,则M称为自同构不变。这种想法是由Lee和Zhou在最近的论文中讨论的自同构不变模块模拟所激发的。[模块在其内射壳的自同构下是不变的,J。Algebra Appl。 [12(2)(2013),1250159,9 pp。]。证明了互自同构不变模块和自同构不变模块的基本性质,并讨论了它们与伪内射模的联系。

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