Passive systems with a normal main operator and quasi-selfadjoint systems

Yu. M. Arlinskiĭ, S. Hassi, H. S. V. de Snoo

Passive systems $\tau =T,M,N,H$ with $M$ and $N$ as an input and output space and $H$ as a state space are considered in the case that the main operator on the state space is normal.…