On the lack of inverses to C*-extensions related to property T groups
| dc.creator | Manuilov, V. | |
| dc.creator | Thomsen, K. | |
| dc.date | 2005-01-24 | |
| dc.date.accessioned | 2026-07-07T05:16:20Z | |
| dc.date.available | 2026-07-07T05:16:20Z | |
| dc.description | Using ideas of S. Wassermann on non-exact $C^*$-algebras and property T groups, we show that one of his examples of non-invertible C*-extensions is not semi-invertible. To prove this, we show that a certain element vanishes in the asymptotic tensor product. We also show that a modification of the example gives a C*-extension which is not even invertible up to homotopy. | |
| dc.description | 11 pages | |
| dc.identifier | https://arxiv.org/abs/math/0501412 | |
| dc.identifier | http://arxiv.org/abs/math/0501412 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/73949 | |
| dc.subject | Operator Algebras | |
| dc.subject | 46L05 | |
| dc.title | On the lack of inverses to C*-extensions related to property T groups | |
| dc.type | text |