<?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>2026-04-18T03:12:22Z</responseDate><request verb="GetRecord" identifier="oai:www.recercat.cat:2117/78759" metadataPrefix="oai_dc">https://recercat.cat/oai/request</request><GetRecord><record><header><identifier>oai:recercat.cat:2117/78759</identifier><datestamp>2026-01-15T05:14:00Z</datestamp><setSpec>com_2072_1033</setSpec><setSpec>col_2072_452950</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>Variational principles for multisymplectic second-order classical field theories</dc:title>
   <dc:creator>Román Roy, Narciso</dc:creator>
   <dc:creator>Prieto Martínez, Pedro Daniel</dc:creator>
   <dc:contributor>Universitat Politècnica de Catalunya. Departament de Matemàtiques</dc:contributor>
   <dc:contributor>Universitat Politècnica de Catalunya. DGDSA - Geometria Diferencial, Sistemes Dinàmics i Aplicacions</dc:contributor>
   <dc:contributor>Universitat Politècnica de Catalunya. GEOMVAP - Geometria de Varietats i Aplicacions</dc:contributor>
   <dc:subject>Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics</dc:subject>
   <dc:subject>Numerical analysis</dc:subject>
   <dc:subject>Second-order classical field theories</dc:subject>
   <dc:subject>variational principles</dc:subject>
   <dc:subject>unified</dc:subject>
   <dc:subject>Lagrangian and Hamiltonian formalisms</dc:subject>
   <dc:subject>Anàlisi numèrica</dc:subject>
   <dc:subject>Classificació AMS::70 Mechanics of particles and systems::70S Classical field theories</dc:subject>
   <dc:description>We state a unified geometrical version of the variational principles for second-order classical field theories. The standard Lagrangian and Hamiltonian variational principles and the corresponding field equations are recovered from this unified framework.</dc:description>
   <dc:description>Peer Reviewed</dc:description>
   <dc:description>Postprint (author’s final draft)</dc:description>
   <dc:date>2015-09-01</dc:date>
   <dc:type>Article</dc:type>
   <dc:identifier>Roman-Roy, N., P.D. Prieto-Martínez. Variational principles for multisymplectic second-order classical field theories. "International journal of geometric methods in modern physics", 01 Setembre 2015, vol. 12, núm. 8.</dc:identifier>
   <dc:identifier>0219-8878</dc:identifier>
   <dc:identifier>https://hdl.handle.net/2117/78759</dc:identifier>
   <dc:identifier>10.1142/S0219887815600191</dc:identifier>
   <dc:language>eng</dc:language>
   <dc:rights>http://creativecommons.org/licenses/by-nc-nd/3.0/es/</dc:rights>
   <dc:rights>Open Access</dc:rights>
   <dc:format>application/pdf</dc:format>
</oai_dc:dc></metadata></record></GetRecord></OAI-PMH>