103 citations · 129 across the 29 of their papers we have counts for
Showing 2015 · math.FAShow all
2 papers · 2 filters
math.FA2015★ 3 cited
Invariance theorems for Nevanlinna families
Vladimir Derkach, Seppo Hassi, Mark Malamud
A complex function is called a Herglotz-Nevanlinna function if it is holomorphic in the upper half-plane and maps into itself. By a maximum p…
math.FA2015★ 1 cited
Compressed resolvents of selfadjoint contractive extensions with exit and holomorphic operator-functions associated with them
Yury Arlinskii, Seppo Hassi
Contractive selfadjoint extensions of a Hermitian contraction in a Hilbert space with an exit in some larger Hilbert space are…