Seppo Hassi

Seppo Hassi
Professor
University of Vaasa / School of Technology and Innovations / Mathematics

Contact

Seppo.Hassi [at] uwasa.fi
+358294498279
Fabriikki F482

Introduction

For a further personal home page see:

http://lipas.uwasa.fi/~sha/

Publications

Publication year Publication Authors
2008 Symmetries in the theory of finite rank singular perturbations S. Hassi and S. Kuzhel
2008 One-dimensional perturbations, asymptotic expansions, and spectral gaps S. Hassi;A. Sandovici;H.S.V. de Snoo;and H. Winkler
2008 Functional models for Nevanlinna families J. Behrndt;S. Hassi;and H.S.V. de Snoo
2007 Extremal extensions for the sum of nonnegative selfadjoint relations S. Hassi;A. Sandovici;H.S.V. de Snoo;and H. Winkler
2007 On exceptional extensions close to the generalized Friedrichs extension of symmetric operators S. Hassi;H.S.V. de Snoo;and H. Winkler