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PSD-补模

PSD-supplemented modules
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摘要 设R是环,M是右R-模.称模M为PSD-补模,如果对于M的任意子模N,存在M的子模K,使得M=N+K且N∩K在K中是PSD的.给出PSD-补模的一些性质,证明对于duo-模M=M1M2,如果M1,M2是PSD-补模,则M是PSD-补模. Let R be a ring and M an right R-module. M is called PSD-supplemented module if for every submodule N of M, there is a submodule K of M such that M= N+K and Nr)K is PSD in K. Some prop- erties of PSD-supplemented modules were given and it was proved that a duo-module M=M1○M2 would be a PSD-supplemented module if M1 and M2 were PSD-supplemented modules.
出处 《兰州理工大学学报》 CAS 北大核心 2013年第2期144-147,共4页 Journal of Lanzhou University of Technology
关键词 补模 I-补模 PSD-子模 PSD-补模 PSD-补 supplemented module I-supplemented module PSD-submodule PSD-supplemented mod-ule PSD-supplement
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