dc.date.accessioned | 2018-09-18T10:07:29Z | |
dc.date.available | 2018-09-18T10:07:29Z | |
dc.date.created | 2017-08-09T11:15:18Z | |
dc.date.issued | 2017 | |
dc.identifier.citation | Bedos, Erik Christopher Conti, Roberto . Negative definite functions for C*-dynamical systems. Positivity (Dordrecht). 2017, 21(4), 1625-1646 | |
dc.identifier.uri | http://hdl.handle.net/10852/64787 | |
dc.description.abstract | Given an action α of a discrete group G on a unital C∗ -algebra A, we introduce a natural concept of α -negative definiteness for functions from G to A, and examine some of the first consequences of such a notion. In particular, we prove analogs of theorems due to Delorme–Guichardet and Schoenberg in the classical case where A is trivial. We also give a characterization of the Haagerup property for the action α when G is countable. | en_US |
dc.language | EN | |
dc.title | Negative definite functions for C*-dynamical systems | en_US |
dc.type | Journal article | en_US |
dc.creator.author | Bedos, Erik Christopher | |
dc.creator.author | Conti, Roberto | |
cristin.unitcode | 185,15,13,65 | |
cristin.unitname | Flere komplekse variable, logikk og operatoralgebraer | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |
dc.identifier.cristin | 1485123 | |
dc.identifier.bibliographiccitation | info:ofi/fmt:kev:mtx:ctx&ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Positivity (Dordrecht)&rft.volume=21&rft.spage=1625&rft.date=2017 | |
dc.identifier.jtitle | Positivity (Dordrecht) | |
dc.identifier.volume | 21 | |
dc.identifier.issue | 4 | |
dc.identifier.startpage | 1625 | |
dc.identifier.endpage | 1646 | |
dc.identifier.doi | http://dx.doi.org/10.1007/s11117-017-0490-0 | |
dc.identifier.urn | URN:NBN:no-67320 | |
dc.type.document | Tidsskriftartikkel | en_US |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 1385-1292 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/64787/2/negdef-arxiv_v2.pdf | |
dc.type.version | AcceptedVersion | |