IBN and Related Properties for Rings

Acta Mathematica Hungarica (Impact Factor: 0.35). 01/2002; 93(3):251-261. DOI: 10.1023/A:1015683326841

ABSTRACT We first tackle certain basic questions concerning the Invariant Basis Number (IBN) property and the universal stably finite
factor ring of a direct product of a family of rings. We then consider formal triangular matrix rings and obtain information
concerning IBN, rank condition, stable finiteness and strong rank condition of such rings. Finally it is shown that being
stably finite is a Morita invariant property.

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