dc.date.accessioned | 2021-04-22T19:22:00Z | |
dc.date.available | 2021-04-22T19:22:00Z | |
dc.date.created | 2019-04-25T18:41:22Z | |
dc.date.issued | 2020 | |
dc.identifier.citation | Bryder, Rasmus Sylvester Ivanov, Nikolay A. Omland, Tron . C*-simplicity of HNN extensions and groups acting on trees. Annales de l'Institut Fourier. 2020 | |
dc.identifier.uri | http://hdl.handle.net/10852/85460 | |
dc.description.abstract | We study non-ascending HNN extensions acting on their Bass– Serre tree and characterize C*-simplicity and the unique trace property by means of the kernel and quasi-kernels of the HNN extension in question. We also present a concrete example of an HNN extension that is a new example of a group that is not C*-simple but does have the unique trace property. Additionally, we include certain more general results, mostly based on previous work of various authors, concerning C*-simplicity of groups admitting extreme boundary actions, and in particular, groups acting on trees. | |
dc.language | EN | |
dc.publisher | Institut Fourier | |
dc.rights | Attribution-NoDerivs 3.0 Unported | |
dc.rights.uri | https://creativecommons.org/licenses/by-nd/3.0/ | |
dc.title | C*-simplicity of HNN extensions and groups acting on trees | |
dc.type | Journal article | |
dc.creator.author | Bryder, Rasmus Sylvester | |
dc.creator.author | Ivanov, Nikolay A. | |
dc.creator.author | Omland, Tron | |
cristin.unitcode | 185,15,13,0 | |
cristin.unitname | Matematisk institutt | |
cristin.ispublished | false | |
cristin.fulltext | original | |
cristin.qualitycode | 2 | |
dc.identifier.cristin | 1693999 | |
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=Annales de l'Institut Fourier&rft.volume=&rft.spage=&rft.date=2020 | |
dc.identifier.jtitle | Annales de l'Institut Fourier | |
dc.identifier.urn | URN:NBN:no-88154 | |
dc.type.document | Tidsskriftartikkel | |
dc.type.peerreviewed | Peer reviewed | |
dc.source.issn | 0373-0956 | |
dc.identifier.fulltext | Fulltext https://www.duo.uio.no/bitstream/handle/10852/85460/2/AIF_0__0_0_A5_0.pdf | |
dc.type.version | PublishedVersion | |
dc.relation.project | NFR/240913 | |