1 citations · 1 across the 2 of their papers we have counts for
2 papers
math.FA2009★ 1 cited
Componentwise and Cartesian decompositions of linear relations
S. Hassi, H. S. V. de Snoo, F. H. Szafraniec
Let be a, not necessarily closed, linear relation in a Hilbert space $\sH$ with a multivalued part $\mul A$. An operator in $\sH$ with $\ran B\perp\mul A^{**}$ is said to b…
math.FA2007
Passive systems with a normal main operator and quasi-selfadjoint systems
Yu. M. Arlinskiĭ, S. Hassi, H. S. V. de Snoo
Passive systems with and as an input and output space and as a state space are considered in the case that the main operator on the state space is normal.…