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1991 Nov 1: ºÎ´öÈÆ(Ãæ³²´ë);  Index and property T for von Neumann Algebras II

1992 Jun 5: ºÎ´öÈÆ(Ãæ³²´ë);  Downward Basic Construction for a Pair Finite von Neumann Algebras

1992 Sep 18: ºÎ´öÈÆ(Ãæ³²´ë);  An Example for Downward Construction