IPM
30
YEARS OLD

## “School of Mathematics”

Paper   IPM / M / 539
School of Mathematics
Title: IBN and related properties for rings
Author(s):
 1 . A. Haghany 2 . K. Varadarajan
Status: Published
Journal: Acta Math. Hungar.
No.: 3
Vol.: 94
Year: 2002
Pages: 251-261
Supported by: IPM
Abstract:
In this paper 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.