Supported by the National Natural Science Foundation of China (Grant No. 10671137);Specialized Research Fund for the Doctoral Program of Higher Education (Grant No. 20060636001)
Let R ■ T be an extension of commutative rings.T is called w-linked over R if T as an R-module is a w-module.In the case of R ■ T ■ Q 0 (R),T is called a w-linked overring of R.As a generalization of Wang-McCslan...