| Title | An invariant for unbounded operators |
| Authors | Sergei Silvestrov, Vladimir Manuilov |
| Alternative Location | http://www.ams.org/proc/200... |
| Alternative Location | http://dx.doi.org/10.1090/S... |
| Publication | Proceedings of the American Mathematical Society |
| Year | 2006 |
| Volume | 134 |
| Issue | 9 |
| Pages | 2593 - 2598 |
| Document type | Article |
| Status | Published |
| Quality controlled | Yes |
| Language | eng |
| Publisher | American Mathematical Society |
| Abstract English | For a class of unbounded operators, a deformation of a Bott projection is used to construct an integer-valued invariant measuring deviation of the non-commutative deformations from the commutative originals, and its interpretation in terms of -theory of -algebras is given. Calculation of this invariant for specific important classes of unbounded operators is also presented. |
| Keywords | deformations, Bott projections, K-group, invariant., |
| ISBN/ISSN/Other | ISSN: 0002-9939 |
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