<?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>2026-04-18T00:28:40Z</responseDate><request verb="GetRecord" identifier="oai:www.recercat.cat:10459.1/60389" metadataPrefix="oai_dc">https://recercat.cat/oai/request</request><GetRecord><record><header><identifier>oai:recercat.cat:10459.1/60389</identifier><datestamp>2024-12-05T21:57:36Z</datestamp><setSpec>com_2072_3622</setSpec><setSpec>col_2072_479130</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>On the planar integrable differential systems</dc:title>
   <dc:creator>Giné, Jaume</dc:creator>
   <dc:creator>Llibre, Jaume</dc:creator>
   <dc:description>Under very general assumptions we prove that the planar differential systems having a first integral are essentially the linear differential systems u˙ = u, ˙v = v. Additionally such systems always have a Lie symmetry. We improve these results for polynomial differential systems defined in R2 or C2.</dc:description>
   <dc:description>The first author is partially supported by a MCYT/FEDER grant number MTM2008-00694 and by a CIRIT grant number 2005SGR 00550. The second author is partially supported by a MCYT/FEDER grant number MTM2008-03437 and by a CIRIT grant number 2005SGR 00550.</dc:description>
   <dc:date>2017-10-30T09:29:49Z</dc:date>
   <dc:date>2017-10-30T09:29:49Z</dc:date>
   <dc:date>2011</dc:date>
   <dc:type>article</dc:type>
   <dc:type>submittedVersion</dc:type>
   <dc:identifier>https://doi.org/10.1007/s00033-011-0116-5</dc:identifier>
   <dc:identifier>1420-9039</dc:identifier>
   <dc:identifier>http://hdl.handle.net/10459.1/60389</dc:identifier>
   <dc:identifier>http://hdl.handle.net/10459.1/60389</dc:identifier>
   <dc:language>eng</dc:language>
   <dc:relation>MICINN/PN2008-2011/MTM2008-00694</dc:relation>
   <dc:relation>MICINN/PN2008-2011/MTM2008-03437</dc:relation>
   <dc:relation>Versió preprint del document publicat a https://doi.org/10.1007/s00033-011-0116-5</dc:relation>
   <dc:relation>ZAMP. Journal of Applied Mathematics and Physics, 2011, vol. 62, núm. 4, p. 567-574</dc:relation>
   <dc:rights>(c) Springer Verlag, 2011</dc:rights>
   <dc:rights>info:eu-repo/semantics/openAccess</dc:rights>
   <dc:publisher>Springer Verlag</dc:publisher>
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