Note on the Curvature and Index of Almost Unitary Contraction Operator

Thumbnail Image

Date

Authors

Journal Title

Journal ISSN

Volume Title

Publisher

Abstract

Description

In the recent preprint (OA/0006224) S. Parrott proved the equality between the Arveson`s curvature and the Fredholm index of a "pure" contraction with finite defect numbers. In the present note one derives a similar formula in the "non-pure" case.
3 pages

Keywords

Functional Analysis, Operator Algebras, 47A53; 47A20

Citation

URI

http://salesiana.dossiersoluciones.com/handle/123456789/59640

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/math/0007178
 http://arxiv.org/abs/math/0007178

Collections

arXiv