Higher order isometric shift operator on the de Branges-Rovnyak space

Caixing Gu, Shuaibing Luo

The de Branges-Rovnyak space $H(b)$ is generated by a bounded analytic function $b$ in the unit ball of $H^{\infty }$. When $b$ is a nonextreme point, the space $H(b)$ is invariant by…