| 2012 |
Infinite-dimensional perturbations, maximally nondensely defined symmetric operators, and some matrix representations |
Hassi, Seppo; de Snoo, H.S.V.; Szafraniec, F.H. |
| 2012 |
Truncated moment problem in the class of generalized Nevanlinna functions |
Derkach, Vladimir; Hassi, Seppo; de Snoo, Henk |
| 2012 |
On the unitary equivalence of the proper extensions of a Hermitian operator and the Weyl function |
Malamud, Mark, Mogilevskii, Vadim; Hassi, Seppo |
| 2012 |
Limit properties of monotone matrix functions |
Behrndt, Jussi; Hassi, Seppo, de Snoo, Henk; Wietsma, Rudi |
| 2011 |
Linear fractional transformations of Stieltjes functions |
J. Behrndt, S. Hassi, H.S.V. de Snoo, R. Wietsma, and H. Winkler |
