<?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>2026-04-27T12:59:16Z</responseDate><request verb="GetRecord" identifier="oai:uvadoc.uva.es:10324/81437" metadataPrefix="edm">https://uvadoc.uva.es/oai/request</request><GetRecord><record><header><identifier>oai:uvadoc.uva.es:10324/81437</identifier><datestamp>2026-03-20T08:27:48Z</datestamp><setSpec>com_10324_1159</setSpec><setSpec>com_10324_931</setSpec><setSpec>com_10324_894</setSpec><setSpec>col_10324_1310</setSpec></header><metadata><rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:doc="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:ore="http://www.openarchives.org/ore/terms/" xmlns:dcterms="http://purl.org/dc/terms/" xmlns:ds="http://dspace.org/ds/elements/1.1/" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:edm="http://www.europeana.eu/schemas/edm/" xsi:schemaLocation="http://www.w3.org/1999/02/22-rdf-syntax-ns# http://www.europeana.eu/schemas/edm/EDM.xsd">
<edm:ProvidedCHO rdf:about="https://uvadoc.uva.es/handle/10324/81437">
<dc:creator>Kuru, Şengül</dc:creator>
<dc:creator>Marquette, I</dc:creator>
<dc:creator>Negro Vadillo, Francisco Javier</dc:creator>
<dc:date>2020</dc:date>
<dc:description>We characterize the symmetry algebra of the generic superintegrable system&#xd;
on a pseudo-sphere corresponding to the homogeneous space SO(p, q + 1)&#xd;
/SO(p, q) where p+ q = N,N ∈N. These symmetries occur both in quantum&#xd;
as well as in classical systems in various contexts, so they are quite important in&#xd;
physics.We show that this algebra is independent of the signature (p, q + 1) of&#xd;
the metric and that it is the same as the Racah algebraR(N + 1). The spectrum&#xd;
obtained from R(N + 1) via the Daskaloyannis method depends on undetermined&#xd;
signs that can be associated to the signatures. Two examples are worked&#xd;
out explicitly for the cases SO(2, 1)/SO(2) and SO(3)/SO(2) where it is shown&#xd;
that their spectrum obtained by means of separation of variables coincide with&#xd;
particular choices of the signs, corresponding to the specific signatures, of the&#xd;
spectrum for the symmetry algebra R(3).</dc:description>
<dc:format>application/pdf</dc:format>
<dc:identifier>https://uvadoc.uva.es/handle/10324/81437</dc:identifier>
<dc:language>spa</dc:language>
<dc:publisher>IOP publishing</dc:publisher>
<dc:title>The general Racah algebra as the symmetry algebra of generic systems on pseudo-spheres</dc:title>
<dc:type>info:eu-repo/semantics/article</dc:type>
<edm:type>TEXT</edm:type>
</edm:ProvidedCHO>
<ore:Aggregation rdf:about="https://uvadoc.uva.es/handle/10324/81437#aggregation">
<edm:aggregatedCHO rdf:resource="https://uvadoc.uva.es/handle/10324/81437"/>
<edm:dataProvider>UVaDOC. Repositorio Documental de la Universidad de Valladolid</edm:dataProvider>
<edm:isShownAt rdf:resource="https://uvadoc.uva.es/handle/10324/81437"/>
<edm:isShownBy rdf:resource="https://uvadoc.uva.es/bitstream/10324/81437/1/20_JA_Racah.pdf"/>
<edm:provider>Hispana</edm:provider>
<edm:rights rdf:resource="http://rightsstatements.org/vocab/CNE/1.0/"/>
</ore:Aggregation>
<edm:WebResource rdf:about="https://uvadoc.uva.es/bitstream/10324/81437/1/20_JA_Racah.pdf">
<edm:rights rdf:resource="http://rightsstatements.org/vocab/CNE/1.0/"/>
</edm:WebResource>
</rdf:RDF></metadata></record></GetRecord></OAI-PMH>