| [1] WU T S.Weak Cancellation of Modules and wsr1 Condition [J].J.of Nanjing University Mathematical Biquarterly,1994,11(2):109-116.[2] WU T S.Weak Cancellation of Modules and Qu-Regular Rings [J].Acta Mathematica Sinica(in Chinese) 1995,38(6):746-751.[3] WU T S.Characterizing Wsr1 Condition by Completions of Diagrams [J].J.of Mathematical Research and Exposition,1999,19(1):131-134.[4] LI Q S,TONG W T.Weak Cancellation of Modules and Weakly Stable Range Conditions for Exchange Rings [J].Acta Mathematica Sinica(in Chinese),2002,45(6):1 121-1 126.[5] WARFIELD R B.Exchange Rings and Decompositions of Modules [J].Math.Ann.,1972,199:31-36.[6] ARA P,GOODEARL K R,O'MEARA K C,et al.Separative Cancellation for Projective Modules over Exchange Rings [J].Israel J.of Math,1998,105:105-137.[7] TUGANBAEV A A.Rings and Modules with Exchange Property [J].J.of Mathematical Sciences,2002,110:2 348-2 421.[8] CHEN H Y,LI F A.Comparability and S-Comparability of Modules over Exchange Rings [J].Acta Mathematica Sinica,2001,17(3):481-488.[9] CHEN H Y.Related Comparability over Exchange Rings [J].Comm.Algebra,1999,27:4 209-4 216.[10] WU Tongsuo.Inner Weak Cancellation of Modules [J].J.of Nanjing University Mathematical Biquarterly,1996,13:54-56.[11] CHEN H Y.On Power Comparability of Modules [J].Advance in Mathematics,2001,30(4):310-316.[12] CHEN H Y.On Related Unit-Regular Elements [J].Algebra Colloquium,1997,4:323-328. |
