From Clouatre-Ostermann-Ransford to Okubo-Ando

Michael Hartz, John E. McCarthy

We prove that if $\hat{I}¸$ is a continuous unital homomorphism of an operator algebra $A$ into $B(\mathcal{H})$, and ${\hat{I}}^2$ is in the dual space of $A$, then the completely bounded norm o…