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
2005 On the nonnegativity of operator products Hassi Seppo;Sebesty'en Zoltan and de Snoo Henk
2005 Q-functions of Hermitian contractions of Krein-Ovcharenko type Arlinskii Yury;Hassi Seppo;de Snoo Henk
2005 Similarity between $J$-self-adjoint Sturm-Liouville operators with an operator potential and self-adjoint operators Hassi Seppo and Karabash Ilia
2004 Boundary relations and their Weyl families Derkach;Vladimir;Seppo Hassi;Mark Malamud;and Henk de Snoo
2004 On Krein's extension theory of nonnegative operators. Hassi;Seppo;Mark Malamud;and Henk de Snoo