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co-?s-modules |
Lingling YAO1,2( ), Jianlong CHEN1 |
| 1. Department of Mathematics, Southeast University, Nanjing 210096, China; 2. Department of Mathematics, Bielefeld University, Bielefeld 33615, Germany |
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Abstract J. Wei recently proposed a concept of ?s-modules which is another generalization of ?-modules besides ?n-modules [J. Algebra, 2005, 291: 312-324]. In this paper, we consider the co-?s-modules and give some characterizations and properties. It is found that the class of co-?s-modules contains co-selfsmall injective cogenerators. The relations between co-?s-modules and co-?n-modules are also considered.
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| Keywords
?s-module')" href="#">co-?s-module
co-selfsmall
?s-module')" href="#">?s-module
?n-module')" href="#">co-?n-module
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Corresponding Author(s):
YAO Lingling,Email:linglingyao@gmail.com
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Issue Date: 05 December 2010
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