REFERENCES
- Ara , P. , Goodearl , K. R. ( 1992 ). The almost isomorphism relation for simple regular rings . Publ. Mat. UAB 36 : 369 – 388 .
- Ara , P. , Goodearl , K. R. , Pardo , E. , Tyukavkin , D. V. ( 1995 ). K-theoretically simple von Neumann regular rings . J. Algebra 174 : 659 – 677 .
- Ara , P. , O'Meara , K. C. , Tyukavkin , D. V. ( 1996 ). Cancellation of projective modules over regular rings with comparability . J. Pure Appl. Algebra 107 : 19 – 38 .
- Ara , P. , Goodearl , K. R. , O'Meara , K. C. , Pardo , E. (1998). Separative cancellation for projective modules over exchange rings. Israel J. Math. 105:105–137.
- Ara , P. , Pardo , E. , Perera , P. ( 2000 ). The structure of countably generated projective modules over regular rings . J. Algebra 226 : 161 – 190 .
- Fuchs , L. ( 1972 ). The cancellation property for modules . Lectures on Rings and Modules . Springer-Lecture Notes in Math. (New York) No. 246 . pp. 191 – 212 .
- Goodearl , K. R . ( 1991 ). Von Neumann Regular Rings. . , 2nd ed Malabar , Florida : Krieger .
- Goodearl , K. R. ( 1995 ). Torsion in K 0 of unit-regular rings . Proc. Edinburgh Math. Soc. 38 ( 2 ): 331 – 341 .
- Kutami , M. ( 1999 ). On regular rings with s-comparability . Comm. Algebra 27 ( 6 ): 2917 – 2933 .
- Kutami , M. ( 2003 ). On von Neumann regular rings with weak comparability . J. Algebra 265 : 285 – 298 .
- Kutami , M. ( 2005 ). On von Neumann regular rings with weak comparability II . Comm. Algebra 33 ( 9 ): 3137 – 3147 .
- O'Meara , K. C. ( 1991 ). Simple regular rings satisfying weak comparability . J. Algebra 141 : 162 – 186 .
- Pardo , E. ( 1996 ). Comparability, separability, and exchange rings . Comm. Algebra 24 ( 9 ): 2915 – 2929 .
- Warfield , R. B. Jr. ( 1975 ). Notes on Cancellation, Stable Range, and Related Topics . Univ. of Washington ( August 1975 ).
- Warfield , R. B. Jr . ( 1980 ). Cancellation of modules and groups and stable range of endomorphism rings . Pacific J. Math. 91 : 457 – 485 .
- Wisbauer , R. ( 1991 ). Foundations of Module and Ring Theory . Amsterdam : Gordon and Breach Science Publishers .
- Communicated by R. Wisbauer.