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A dichotomy property for locally compact groups
dc.contributor.author | Ferrer González, María Vicenta | |
dc.contributor.author | Hernández, Salvador | |
dc.contributor.author | Tárrega Ruiz, Luis | |
dc.date.accessioned | 2018-09-24T09:09:19Z | |
dc.date.available | 2018-09-24T09:09:19Z | |
dc.date.issued | 2018-08 | |
dc.identifier.citation | FERRER, María V.; HERNÁNDEZ, Salvador; TÁRREGA, Luis. A dichotomy property for locally compact groups. Journal of Functional Analysis, 2018, 275.4: 869-891. | ca_CA |
dc.identifier.uri | http://hdl.handle.net/10234/176206 | |
dc.description.abstract | We extend to metrizable locally compact groups Rosenthal's theorem describing those Banach spaces containing no copy of l1. For that purpose, we transfer to general locally compact groups the notion of interpolation (Io) set, which was defined by Hartman and Ryll-Nardzewsky for locally compact abelian groups. Thus we prove that for every sequence [gn]n<w in a locally compact group G, then either [gn]n<w has a weak Cauchy subsequence or contains a subsequence that is an Io set. This result is subsequently applied to obtain sufficient conditions for the existence of Sidon sets in a locally compact group G, an old question that remains open since 1974. Finally, we show that every locally compact group strongly respects compactness extending thereby a result by Comfort, Trigos-Arrieta, and Wu [13], who established this property for abelian locally compact groups. | ca_CA |
dc.format.extent | 22 p. | ca_CA |
dc.format.mimetype | application/pdf | ca_CA |
dc.language.iso | eng | ca_CA |
dc.publisher | Elsevier | ca_CA |
dc.rights | © 2018 Elsevier Inc. All rights reserved. | ca_CA |
dc.rights.uri | http://rightsstatements.org/vocab/InC/1.0/ | * |
dc.subject | locally compact group | ca_CA |
dc.subject | (Io) set | ca_CA |
dc.subject | Sidon set | ca_CA |
dc.subject | Weak topology | ca_CA |
dc.title | A dichotomy property for locally compact groups | ca_CA |
dc.type | info:eu-repo/semantics/article | ca_CA |
dc.identifier.doi | https://doi.org/10.1016/j.jfa.2018.03.013 | |
dc.relation.projectID | Spanish Ministerio de Economía y Competitividad, grant MTM2016-77143-P (AEI/FEDER, EU) ; Universitat Jaume I (grant P1171B2015-77) ; Generalitat Valenciana (PROMETEO/2014/062) | ca_CA |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | ca_CA |
dc.relation.publisherVersion | https://www.sciencedirect.com/science/article/pii/S0022123618301228 | ca_CA |
dc.type.version | info:eu-repo/semantics/submittedVersion | ca_CA |
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