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On von Neumann algebras which are complemented subspaces of B(H)

Erik Christensen·Allan M. Sinclair
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Abstract

If there exists a completely bounded projection of B(H) onto a von Neumann algebra M on H, then M is injective. If there exists a bounded projection and M is properly infinite, the same conclusion holds.

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BibTeXRIS

Erik Christensen, Allan M. Sinclair. 1992-12-14. On von Neumann algebras which are complemented subspaces of B(H). https://arxiv.org/abs/funct-an/9212002

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