<?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>2026-07-18T21:25:03Z</responseDate><request verb="GetRecord" identifier="oai:docta.ucm.es:20.500.14352/43813" metadataPrefix="oai_dc">https://docta.ucm.es/rest/oai/request</request><GetRecord><record><header><identifier>oai:docta.ucm.es:20.500.14352/43813</identifier><datestamp>2023-08-27T22:25:42Z</datestamp><setSpec>com_20.500.14352_14</setSpec><setSpec>col_20.500.14352_15</setSpec></header><metadata><oai_dc:dc xmlns:oai_dc="http://www.openarchives.org/OAI/2.0/oai_dc/" xmlns:dc="http://purl.org/dc/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/oai_dc/ http://www.openarchives.org/OAI/2.0/oai_dc.xsd">
   <dc:title>An introduction to the dark energy problem</dc:title>
   <dc:creator>Dobado González, Antonio</dc:creator>
   <dc:creator>López Maroto, Antonio</dc:creator>
   <dc:subject>53</dc:subject>
   <dc:subject>Dark Energy</dc:subject>
   <dc:subject>Cosmological Constant</dc:subject>
   <dc:subject>Física (Física)</dc:subject>
   <dc:subject>22 Física</dc:subject>
   <dc:description>© Springer. Conference on Network for Ultra Violet Astronomy (2007. Madrid, España). This work has been partially supported by the
DGICYT (Spain) under the project numbers FPA 2004-02602 and FPA
2005-02327 and by the Universidad Complutense/CAM: project number 910309. A.D. thanks Ana I. Gómez de Castro for her kind invitation
to participate in the NUVA Conference</dc:description>
   <dc:description>In this work we review briefly the origin and history of the cosmological constant and its recent reincarnation in the form of the dark energy component of the universe. We also comment on the fundamental problems associated to its existence and magnitude which require an urgent solution for the sake of the internal consistency of theoretical physics.</dc:description>
   <dc:description>DGICYT (Spain)</dc:description>
   <dc:description>Universidad Complutense/CAM</dc:description>
   <dc:description>Depto. de Física Teórica</dc:description>
   <dc:description>Fac. de Ciencias Físicas</dc:description>
   <dc:description>TRUE</dc:description>
   <dc:description>pub</dc:description>
   <dc:date>2023-06-20T03:32:42Z</dc:date>
   <dc:date>2023-06-20T03:32:42Z</dc:date>
   <dc:date>2009-04</dc:date>
   <dc:type>journal article</dc:type>
   <dc:identifier>https://hdl.handle.net/20.500.14352/43813</dc:identifier>
   <dc:identifier>0004-640X</dc:identifier>
   <dc:identifier>10.1007/s10509-008-9759-x</dc:identifier>
   <dc:language>eng</dc:language>
   <dc:relation>FPA 2004-02602</dc:relation>
   <dc:relation>FPA 2005-02327</dc:relation>
   <dc:relation>910309</dc:relation>
   <dc:rights>open access</dc:rights>
   <dc:format>application/pdf</dc:format>
   <dc:format>application/pdf</dc:format>
   <dc:publisher>Springer</dc:publisher>
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