On von Neumann algebras which are complemented subspaces of B(H)
Erik ChristensenAllan M. Sinclair
所有作者
Erik ChristensenAllan M. Sinclair
文献摘要
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.