A rigidity theorem for holomorphic generators on the Hilbert ball

Mark Elin, Marina Levenshtein, Simeon Reich +1

We present a rigidity property of holomorphic generators on the open unit ball $\mathbb{B}$ of a Hilbert space $H$. Namely, if $f\in\Hol (\mathbb{B},H)$ is the generator of a one-p…