Almost completely isometric embeddings between preduals of von Neumann algebras

摘要

We will prove that if the predual of an injective von Neumann algebra is embedded in the predual of another von Neumann algebra almost completely isometrically, then it is complemented almost completely contractively. This result iis the operator space analogue of Dor's theorem. (C) 2001 Academic Press. [References: 15]