A Construction of Approximately Finite-Dimensional Non-ITPFI Factors
Alain Connes, E. J. Woods · Canadian Mathematical Bulletin · 1980
A von Neumann algebra is said to be approximately finite-dimensional if it is of the form where Mn⊆Mn+1 for each n and each Mn is a finite-dimensional matrix algebra. A factor is said to be ITPFI if it is of the form