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Characterizing group C*-algebras through their unitary groups: the Abelian case
dc.contributor.author | Galindo, Jorge | |
dc.contributor.author | Ródenas Camacho, Ana María | |
dc.date.accessioned | 2011-07-14T07:37:48Z | |
dc.date.available | 2011-07-14T07:37:48Z | |
dc.date.issued | 2010-07 | |
dc.identifier.issn | 0933-7741 | |
dc.identifier.uri | http://hdl.handle.net/10234/25743 | |
dc.description.abstract | We study to what extent group C*-algebras are characterized by their unitary groups. A complete characterization of which Abelian group C*-algebras have isomorphic unitary groups is obtained. We compare these results with other unitary-related invariants of C*(Γ), such as the K-theoretic K1(C*(Γ)) and find that C*-algebras of nonisomorphic torsion-free Abelian groups may have isomorphic K1-groups, in sharp contrast with the well-known fact that C*(Γ) (even Γ) is characterized by the topological group structure of its unitary group when Γ is torsion-free and Abelian | |
dc.format.extent | 12 p. | |
dc.language.iso | eng | |
dc.publisher | Walter de Gruyter | |
dc.relation.isPartOf | Forum Mathematicum, vol. 22, no. 4 (Jul. 2010), pp 811–824 | |
dc.rights | © Walter de Gruyter | |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | Group C*-algebras | |
dc.subject | Abelian | |
dc.subject | C*(Γ) | |
dc.subject | K-theoretic | |
dc.subject | Topological group structure | |
dc.subject.lcsh | Abelian groups | |
dc.subject.lcsh | C*-algebras | |
dc.subject.other | Grups abelians | |
dc.subject.other | C*-àlgebres | |
dc.title | Characterizing group C*-algebras through their unitary groups: the Abelian case | |
dc.type | info:eu-repo/semantics/article | |
dc.identifier.doi | http://dx.doi.org/10.1515/FORUM.2010.043 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | |
dc.relation.publisherVersion | https://www.degruyter.com/view/journals/form/22/4/article-p811.xml | |
dc.type.version | info:eu-repo/semantics/submittedVersion |
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