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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Haghany, A., Varadarajan, K. IBN and related properties for rings. Acta Math Hung 94, 251–261 (2002). https://doi.org/10.1007/s10474-002-0008-1
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DOI: https://doi.org/10.1007/s10474-002-0008-1