Quasinormal Operators on Krein Space

Authors
Shaokuan, Li
Citation
Shaokuan, Li, Quasinormal Operators on Krein Space, Acta Mathematica Sinica, New Series Chinese Journal of Mathematics, 7(4), 1991, pp. 370-374
Journal title
Acta Mathematica Sinica, New Series Chinese Journal of Mathematics → ACNP
ISSN journal
10009574
Volume
7
Issue
4
Year of publication
1991
Pages
370 - 374
Database
ACNP
SICI code
Abstract
In this paper we introduce the concept of quasinormal and subnormal operators on a Krein space and prove that every quasinormal operator is subnormal. And some conditions for an operator on a Hilbert space to be a subnormal operator in the Krein space sense are obtained.