Characterizations of all-derivable points in $B(H)$

Jun Zhu, Changping Xiong, Pan Li

Let $\mathcal{K}$ and $\mathcal{H}$ be two Hilbert space, and let $B(\mathcal{K},\mathcal{H})$ be the algebra of all bounded linear operators from $\mathcal{K}$ into ${\m…