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
2004 On Krein's extension theory of nonnegative operators. Hassi;Seppo;Mark Malamud;and Henk de Snoo
2004 Boundary relations and the Weyl families. Derkach;Vladimir;Seppo Hassi;Mark Malamud;and Henk de Snoo
2004 Singular perturbations as range perturbations in a Pontryagin space. Derkach;Vladimir;Seppo Hassi;and Henk de Snoo
2004 On the Friedrichs and the Krein-von Neumann extension of nonnegative relations Hassi;Seppo
2003 Q-functions of Hermitian contractions of Krein-Ovcharenko type Arlinskii Yury;Hassi Seppo;de Snoo Henk