Journal of Jilin University Science Edition
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XIONG Tao1, WANG Fanggui2, WU Xiaoying2
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Abstract: By introducing the ∞copure flat modules, we proved that R is a QF ring if and only if R is left Noetherian ring and every finitely presented left Rmodule is ∞copure flat; R is a right IF ring if and only if every left Rmodule is ∞copure flat; R is a left CFH ring if and only if ∞copure flat modules are closed to their submodules; a left coherent ring R is a semihereditary ring if and only if ∞copure flat left Rmodules are flat.
Key words: ∞copure flat module, IF ring, semihereditary ring, CFH ring, QF ring
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XIONG Tao, WANG Fanggui, WU Xiaoying. ∞Copure Flat Modules[J].Journal of Jilin University Science Edition, 2017, 55(03): 519-522.
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URL: http://xuebao.jlu.edu.cn/lxb/EN/
http://xuebao.jlu.edu.cn/lxb/EN/Y2017/V55/I03/519
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