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FENG Xiao and ZHANG Shun-hua
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Abstract: The existence of τ-flat test modules is proved, and some sufficient conditions for {τ-flat left R-modules} being preenvelope class or precove class are obtained.
Key words: precover class , preenvelope class, τ-flat test modules, hereditary torsion theory
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FENG Xiao and ZHANG Shun-hua . τ-Flat test modules and τ-flatcover[J].J4, 2007, 42(1): 31-34 .
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URL: http://lxbwk.njournal.sdu.edu.cn/EN/
http://lxbwk.njournal.sdu.edu.cn/EN/Y2007/V42/I1/31
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