The theory of subfactors of von Neumann algebras made an amazing development in the past ten years or so. In order to appraise the present state of the art in subfactor theory and to look for promising directions of future research, the workshop was organised. This workshop gives an overview of the foremost developments in subfactor theory and related topics.
Superselection sectors with infinite statistical dimension, K. Fredenhagen; the Potts model and the symmetric group, V.F.R. Jones; problems on von Neumann algebras suggested by quantum field theory, R. Longo; chirality for operator algebras, A. Ocneaun; on the von Neumann algebra of Toeplitz operators with automorphic symbol, F. Radulescu; finite extensions fo flows and subfactors, C.E. Sutherland; automorphisms on an inclusion of factors, C. Winslow; extension algebras via *-endomorphisms, M. Choda; finitary codes and non-commutative Bernouli shcemes, T. Hamachi; entropy and growth for derived towers of subfactors, F. Hiai; canonical extension of endomorphisms on factors, M. Izumi; paragroups and their actions on subfactors, Y. Kawahigashi; some results on automorphisms for inclusions of type III factors, H. Kosaki; Latin squares, commuting squares and intermediate subfactors, Y. Watatani.