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关于S-投射模

On Singly Projective Modules
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摘要 设R为任意的幺环.Azumaya将投射模的概念推广到S-投射模.文献(Zhu S L.J Algebra,1991,139:255-261.)讨论了在什么样的环上,平坦模是f-投射的.文献(Mao L X.Taiwan Residents J Math,2007(12):501-512.)给出了内射模都是S-投射的环.讨论S-投射模和其他模的关系,如投射模、平坦模、拟内射模、可除模、S-平坦模等,并证明了S-投射模关于直和的封闭性. Let R be a ring. Azumaya generalized the concept of projectivity of modules to single projectivity. The paper (Zhu S L. J Algebra,1991,139:255 -261. ) argued about rings over which every fiat module is finitely projective. And the paper (Mao L X. Taiwan Residents J Math,2007 (12) :501 -512. ) gave a condition when every injective R-module is singly projective. This article shows some other relations between singly projective R-modules and other kinds of modules, such as quasi-injective R-modules, singly fiat R-mod- ules, finitely projective R-modules and divisible R-modules. And it is proved that singly projective modules are closed under direct sums.
出处 《四川师范大学学报(自然科学版)》 CAS 北大核心 2015年第6期846-850,共5页 Journal of Sichuan Normal University(Natural Science)
基金 国家自然科学基金(11171240) 国家自然科学数学天元基金(11226057)
关键词 S-投射模 平坦模 S-平坦模 singly projective modules flat modules singly flat modules
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参考文献24

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二级参考文献28

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