Operators that dominate normal operators

Authors
Agler, J McCarthy, JE
Citation
J. Agler et Je. Mccarthy, Operators that dominate normal operators, J OPER THEO, 40(2), 1998, pp. 385-407
Citations number
12
Categorie Soggetti
Mathematics
Journal title
JOURNAL OF OPERATOR THEORY
ISSN journal
03794024 → ACNP
Volume
40
Issue
2
Year of publication
1998
Pages
385 - 407
Database
ISI
SICI code
0379-4024(199823)40:2<385:OTDNO>2.0.ZU;2-A
Abstract
We say that an operator T dominates a normal operator N if there is an inte rtwining LT = NL by a non-zero operator L. This notion generalizes that of subnormality. We consider operators that dominate normals, and characterize the invariant subspaces for a special class of these operators.