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On generalized extending modules 总被引:1,自引:0,他引:1
ZENG Qing-yi 《浙江大学学报(A卷英文版)》2007,8(6):939-945
A module M is called generalized extending if for any submodule N of M, there is a direct summand K of M such that N≤K and K/N is singular. Any extending module and any singular module are generalized extending. Any homomorphic image of a generalized extending module is generalized extending. Any direct sum of a singular (uniform) module and a semi-simple module is generalized extending. A ring R is a right Co-H-ring if and only if all right R modules are generalized extending modules. 相似文献
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