<?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>2026-06-08T04:03:05Z</responseDate><request verb="GetRecord" identifier="oai:docta.ucm.es:20.500.14352/60689" metadataPrefix="rdf">https://docta.ucm.es/rest/oai/request</request><GetRecord><record><header><identifier>oai:docta.ucm.es:20.500.14352/60689</identifier><datestamp>2023-09-07T18:58:54Z</datestamp><setSpec>com_20.500.14352_14</setSpec><setSpec>col_20.500.14352_21</setSpec></header><metadata><rdf:RDF xmlns:rdf="http://www.openarchives.org/OAI/2.0/rdf/" xmlns:ow="http://www.ontoweb.org/ontology/1#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:ds="http://dspace.org/ds/elements/1.1/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:doc="http://www.lyncode.com/xoai" xsi:schemaLocation="http://www.openarchives.org/OAI/2.0/rdf/ http://www.openarchives.org/OAI/2.0/rdf.xsd">
   <ow:Publication rdf:about="oai:docta.ucm.es:20.500.14352/60689">
      <dc:title>Problemas de algebricidad en topología diferencial</dc:title>
      <dc:creator>Ruiz Sancho, Jesús María</dc:creator>
      <dc:contributor>Tarrés Freixenet , Juan</dc:contributor>
      <dc:contributor>Montesinos Amilibia, José María</dc:contributor>
      <dc:description>This is a research survey on results dealing with the following question: Let M be a compact smooth manifold and A a family of geometric objects related to M such that there exists some natural equivalence of the pairs (M,A). Does every equivalence class contain some kind of algebraic representative? The survey deals with the cases A = ∅, presenting the achievements of the work of Seifert-Nash-Tognoli, with vector bundles and with realizations of homology classes. In cases of particular interest the methods of proof are outlined.</dc:description>
      <dc:date>2023-06-20T21:06:06Z</dc:date>
      <dc:date>2023-06-20T21:06:06Z</dc:date>
      <dc:date>1994</dc:date>
      <dc:type>book part</dc:type>
      <dc:identifier>84-7491-510-4</dc:identifier>
      <dc:identifier>https://hdl.handle.net/20.500.14352/60689</dc:identifier>
      <dc:identifier>http://cisne.sim.ucm.es/record=b1249015~S6*spi</dc:identifier>
      <dc:rights>metadata only access</dc:rights>
      <dc:publisher>Editorial Complutense</dc:publisher>
   </ow:Publication>
</rdf:RDF></metadata></record></GetRecord></OAI-PMH>