Automorphisms of quasitriangular algebras (Q800612)
From MaRDI portal
 | This is the item page for this Wikibase entity, intended for internal use and editing purposes. Please use this page instead for the normal view: Automorphisms of quasitriangular algebras |
scientific article; zbMATH DE number 3876026
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Automorphisms of quasitriangular algebras |
scientific article; zbMATH DE number 3876026 |
Statements
Automorphisms of quasitriangular algebras (English)
0 references
1984
0 references
The outer automorphism group of a nest algebra is canonically isomorphic to the (spatial) automorphism group of the nest itself. The outer automorphism group of the associated quasitriangular algebra is canonically isomorphic to a group of ''approximate'' automorphisms of the nest. A simple proof that every derivation of a quasitriangular algebra is inner is obtained as a corollary.
0 references
compact perturbations
0 references
outer automorphism group of a nest algebra
0 references
