| 2010 |
Monotone convergence theorems for semi-bounded operators and forms with applications |
Behrndt, J. ; Hassi, S.; De Snoo, H.S.V., Wietsma, H.L. |
| 2009 |
The realization problem for Herglotz-Nevanlinna functions |
Hassi, S; de Snoo, H; Tsekanovskii, E |
| 2009 |
Componentwise and Cartesian decompositions of linear relations |
S. Hassi;H.S.V. de Snoo;and F.H. Szafraniec |
| 2009 |
Boundary relations and generalized resolvents of symmetric operators |
V.A. Derkach;S. Hassi;M.M. Malamud;and H.S.V. de Snoo |
| 2009 |
Passive systems with a normal main operator and quasi-selfadjoint systems |
Arlinskii, Yury M; Hassi, Seppo; de Snoo, Henk S. V |
