<?xml version="1.0" encoding="UTF-8"?><?xml-stylesheet type="text/xsl" href="static/style.xsl"?><OAI-PMH xmlns="http://www.openarchives.org/OAI/2.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/ http://www.openarchives.org/OAI/2.0/OAI-PMH.xsd"><responseDate>2026-05-08T09:00:52Z</responseDate><request verb="GetRecord" identifier="oai:riubu.ubu.es:10259/4721" metadataPrefix="qdc">https://riubu.ubu.es/oai/request</request><GetRecord><record><header><identifier>oai:riubu.ubu.es:10259/4721</identifier><datestamp>2022-12-19T13:29:38Z</datestamp><setSpec>com_10259.4_2557</setSpec><setSpec>com_10259_5086</setSpec><setSpec>com_10259_2604</setSpec><setSpec>col_10259.4_2558</setSpec></header><metadata><qdc:qualifieddc xmlns:qdc="http://dspace.org/qualifieddc/" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:dc="http://purl.org/dc/elements/1.1/" xsi:schemaLocation="http://purl.org/dc/elements/1.1/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dc.xsd http://purl.org/dc/terms/ http://dublincore.org/schemas/xmls/qdc/2006/01/06/dcterms.xsd http://dspace.org/qualifieddc/ http://www.ukoln.ac.uk/metadata/dcmi/xmlschema/qualifieddc.xsd">
<dc:title>Quantum groups and noncommutative spacetimes with cosmological constant</dc:title>
<dc:creator>Ballesteros Castañeda, Ángel</dc:creator>
<dc:creator>Gutiérrez Sagredo, Iván</dc:creator>
<dc:creator>Herranz Zorrilla, Francisco José</dc:creator>
<dc:creator>Meusburger, Catherine .</dc:creator>
<dc:creator>Naranjo, Pedro</dc:creator>
<dcterms:abstract>Noncommutative spacetimes are widely believed to model some properties of the&#xd;
quantum structure of spacetime at the Planck regime. In this contribution the construction&#xd;
of (anti-)de Sitter noncommutative spacetimes obtained through quantum groups is reviewed.&#xd;
In this approach the quantum deformation parameter z is related to a Planck scale, and the&#xd;
cosmological constant Λ plays the role of a second deformation parameter of geometric nature,&#xd;
whose limit Λ → 0 provides the corresponding noncommutative Minkowski spacetimes.</dcterms:abstract>
<dcterms:dateAccepted>2018-02-01T11:55:04Z</dcterms:dateAccepted>
<dcterms:available>2018-02-01T11:55:04Z</dcterms:available>
<dcterms:created>2018-02-01T11:55:04Z</dcterms:created>
<dcterms:issued>2017-08</dcterms:issued>
<dc:type>info:eu-repo/semantics/article</dc:type>
<dc:identifier>1742-6588</dc:identifier>
<dc:identifier>http://hdl.handle.net/10259/4721</dc:identifier>
<dc:identifier>10.1088/1742-6596/880/1/012023</dc:identifier>
<dc:language>eng</dc:language>
<dc:relation>Journal of Physics: Conference Series. 2017, V. 880, n. 1, 012023</dc:relation>
<dc:relation>https://doi.org/10.1088/1742-6596/880/1/012023</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/MINECO/MTM2013-43820-P</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/MINECO/MTM2016-79639-P</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/JCyL/BU278U14</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/JCyL/VA057U16</dc:relation>
<dc:relation>info:eu-repo/grantAgreement/UE/COST-MP1405</dc:relation>
<dc:rights>https://creativecommons.org/licenses/by/3.0/</dc:rights>
<dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
<dc:rights>Attribution 3.0 Unported</dc:rights>
<dc:publisher>IOP Publising</dc:publisher>
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