<?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>2026-04-28T13:17:48Z</responseDate><request verb="GetRecord" identifier="oai:riubu.ubu.es:10259/106" metadataPrefix="xoai">https://riubu.ubu.es/oai/request</request><GetRecord><record><header><identifier>oai:riubu.ubu.es:10259/106</identifier><datestamp>2022-04-26T11:42:12Z</datestamp><setSpec>com_10259_2699</setSpec><setSpec>col_10259_2721</setSpec></header><metadata><metadata xmlns="http://www.lyncode.com/xoai" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.lyncode.com/xoai http://www.lyncode.com/xsd/xoai.xsd">
<element name="dc">
<element name="contributor">
<element name="advisor">
<element name="none">
<field name="value">Ballesteros Castañeda, Ángel</field>
<field name="authority">46</field>
<field name="confidence">500</field>
<field name="orcid_id"/>
</element>
</element>
<element name="author">
<element name="none">
<field name="value">Blasco Sanz, Alfonso</field>
<field name="authority">68</field>
<field name="confidence">500</field>
<field name="orcid_id"/>
</element>
</element>
<element name="other">
<element name="none">
<field name="value">Universidad de Burgos. Departamento de Física</field>
<field name="authority">0666f687-a007-4d8e-813d-d234fe23e606</field>
<field name="confidence">500</field>
<field name="orcid_id"/>
</element>
</element>
</element>
<element name="date">
<element name="accessioned">
<element name="none">
<field name="value">2010-06-24T10:46:29Z</field>
<field name="value">2014-07-28T16:03:16Z</field>
</element>
</element>
<element name="available">
<element name="none">
<field name="value">2010-06-24T10:46:29Z</field>
<field name="value">2014-07-28T16:03:16Z</field>
</element>
</element>
<element name="issued">
<element name="none">
<field name="value">2009</field>
</element>
</element>
<element name="submitted">
<element name="none">
<field name="value">2009</field>
</element>
</element>
<element name="embargoEndDate">
<element name="none"/>
</element>
</element>
<element name="identifier">
<element name="uri">
<element name="none">
<field name="value">http://hdl.handle.net/10259/106</field>
</element>
</element>
<element name="doi">
<element name="none">
<field name="value">10.36443/10259/106</field>
</element>
</element>
</element>
<element name="description">
<element name="abstract">
<element name="en">
<field name="value">Esta Tesis presenta nuevos sistemas hamiltonianos clásicos completamente integrables N dimensionales, construidos mediante la técnica de  simetría de coálgebra.&#xd;
&#xd;
Primeramente se ha obtenido la condición necesaria de integrabilidad para una representación simpléctica de cualquier coálgebra de Poisson. Esta condición ha sido utilizada sistemáticamente para describir los sistemas integrables de álgebras de dimensión 3, 4, 5 y 6. &#xd;
&#xd;
En segundo lugar, se ha utilizado el álgebra “two-photon” para introducir nuevas familias de sistemas N dimensionales cuasi-integrables,  incluyendo, sistemas naturales, flujos geodésicos y hamiltonianos electromagnéticos, demostrando la integrabilidad de algunos de ellos mediante diferentes técnicas algebraicas. Como ejemplo representativo, se han introducido dos familias de perturbaciones ND integrables para el oscilador armónico.&#xd;
&#xd;
Finalmente, dentro del enfoque de la simetría de coálgebra, presentamos las generalizaciones N dimensionales de sistemas integrables bidimensionales. En particular, se han introducido nuevas generalizaciones de los sistemas de Hénon-Heiles, los potenciales de Ramani y osciladores cuárticos acoplados. __________________ &#xd;
This Ph.D. Thesis presents the construction of new completely integrable classical Hamiltonian systems with N degrees of freedom through the coalgebra symmetry approach. &#xd;
&#xd;
Firstly, we have obtained the necessary integrability condition for a symplectic realization of any Poisson coalgebra, which has been systematically explored for dimensions 3,4,5 and 6. The associated integrable systems have been fully described.&#xd;
&#xd;
Secondly, the ¨two-photon¨ algebra has been used to introduce many new families of quasi-integrable Hamiltonians in N dimensions, including natural systems, geodesic flows and electromagnetic Hamiltonians. Some of them have been shown to be completely integrable through different algebraic techniques. As outstanding examples, two new families of nonlinear perturbations of the N-dimensional harmonic oscillator have been introduced.&#xd;
&#xd;
Finally, N dimensional generalizations of two-dimensional integrable systems have been presented by making use of the coalgebra approch. In particular, new generalized Hénon-Heiles systems, Ramani potentials and coupled ND quartic oscillators have been constructed.</field>
</element>
</element>
</element>
<element name="format">
<element name="mimetype">
<element name="en">
<field name="value">application/pdf</field>
</element>
</element>
</element>
<element name="language">
<element name="iso">
<element name="es">
<field name="value">spa</field>
<field name="value">eng</field>
</element>
</element>
</element>
<element name="rights">
<element name="none">
<field name="value">Attribution-NonCommercial-NoDerivs 3.0 Unported</field>
</element>
<element name="uri">
<element name="none">
<field name="value">http://creativecommons.org/licenses/by-nc-nd/3.0/es/</field>
</element>
</element>
<element name="holder">
<element name="none">
<field name="value">Este documento está sujeto a una licencia de uso Creative Commons, por la cual está permitido hacer copia, distribuir y comunicar públicamente la obra siempre que se cite al autor original y no se haga de él uso comercial ni obra derivada</field>
</element>
</element>
<element name="accessRights">
<element name="none">
<field name="value">info:eu-repo/semantics/openAccess</field>
</element>
</element>
</element>
<element name="subject">
<element name="none">
<field name="value">Sistemas hamiltonianos</field>
<field name="value">integrabilidad</field>
<field name="value">coálgebras</field>
<field name="value">N-dimensionales</field>
<field name="value">osciladores no lineales</field>
</element>
<element name="en">
<field name="value">Hamiltonian systems</field>
<field name="value">integrability</field>
<field name="value">coalgebras</field>
<field name="value">N-dimensional</field>
<field name="value">nonlinear</field>
</element>
<element name="other">
<element name="none">
<field name="value">Matemáticas</field>
<field name="value">Física</field>
</element>
<element name="en">
<field name="value">Mathematics</field>
<field name="value">Physics</field>
</element>
</element>
<element name="unesco">
<element name="none">
<field name="value">1201.09 Álgebra de Lie</field>
<field name="value">2205.06 Teoría de N Cuerpos</field>
<field name="value">2205.01 Mecánica Analítica</field>
<field name="value">2212 Física Teórica</field>
</element>
</element>
</element>
<element name="title">
<element name="none">
<field name="value">Integrabilidad de sistemas no lineales hamiltonianos con  N grados de libertad</field>
</element>
<element name="alternative">
<element name="en">
<field name="value">Integrability of nonlinear Hamiltonian systems with N degrees of freedom</field>
</element>
</element>
</element>
<element name="type">
<element name="en">
<field name="value">info:eu-repo/semantics/doctoralThesis</field>
</element>
<element name="hasVersion">
<element name="none">
<field name="value">info:eu-repo/semantics/acceptedVersion</field>
</element>
</element>
</element>
</element>
<element name="bundles">
<element name="bundle">
<field name="name">CC-LICENSE</field>
<element name="bitstreams">
<element name="bitstream">
<field name="name">license_rdf</field>
<field name="originalName">license_rdf</field>
<field name="format">application/rdf+xml; charset=utf-8</field>
<field name="size">811</field>
<field name="url">https://riubu.ubu.es/bitstream/10259/106/8/license_rdf</field>
<field name="checksum">4d01a8abc68801ab758ec8c2c04918c3</field>
<field name="checksumAlgorithm">MD5</field>
<field name="sid">8</field>
</element>
</element>
</element>
<element name="bundle">
<field name="name">THUMBNAIL</field>
<element name="bitstreams">
<element name="bitstream">
<field name="name">Blasco_Sanz.pdf.jpg</field>
<field name="originalName">Blasco_Sanz.pdf.jpg</field>
<field name="description">IM Thumbnail</field>
<field name="format">image/jpeg</field>
<field name="size">3927</field>
<field name="url">https://riubu.ubu.es/bitstream/10259/106/7/Blasco_Sanz.pdf.jpg</field>
<field name="checksum">cd2c7b72d46145a2c4da375cb0062ef2</field>
<field name="checksumAlgorithm">MD5</field>
<field name="sid">7</field>
</element>
</element>
</element>
<element name="bundle">
<field name="name">ORIGINAL</field>
<element name="bitstreams">
<element name="bitstream">
<field name="name">Blasco_Sanz.pdf</field>
<field name="format">application/pdf</field>
<field name="size">1147061</field>
<field name="url">https://riubu.ubu.es/bitstream/10259/106/4/Blasco_Sanz.pdf</field>
<field name="checksum">ae3b6ac21603eb9ecb962094fd21ca88</field>
<field name="checksumAlgorithm">MD5</field>
<field name="sid">4</field>
</element>
</element>
</element>
<element name="bundle">
<field name="name">LICENSE</field>
<element name="bitstreams">
<element name="bitstream">
<field name="name">license.txt</field>
<field name="format">text/plain</field>
<field name="size">1823</field>
<field name="url">https://riubu.ubu.es/bitstream/10259/106/5/license.txt</field>
<field name="checksum">c760b05dda5bf591073f40c9e16d4b78</field>
<field name="checksumAlgorithm">MD5</field>
<field name="sid">5</field>
</element>
</element>
</element>
<element name="bundle">
<field name="name">TEXT</field>
<element name="bitstreams">
<element name="bitstream">
<field name="name">Blasco_Sanz.pdf.txt</field>
<field name="originalName">Blasco_Sanz.pdf.txt</field>
<field name="description">Extracted text</field>
<field name="format">text/plain</field>
<field name="size">301582</field>
<field name="url">https://riubu.ubu.es/bitstream/10259/106/6/Blasco_Sanz.pdf.txt</field>
<field name="checksum">410dcf93d607a79ff22b7326469157a4</field>
<field name="checksumAlgorithm">MD5</field>
<field name="sid">6</field>
</element>
</element>
</element>
</element>
<element name="others">
<field name="handle">10259/106</field>
<field name="identifier">oai:riubu.ubu.es:10259/106</field>
<field name="lastModifyDate">2022-04-26 13:42:12.436</field>
</element>
<element name="repository">
<field name="name">Repositorio Institucional de la Universidad de Burgos</field>
<field name="mail">bubrep@ubu.es</field>
</element>
<element name="license">
<field name="bin">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</field>
</element>
</metadata></metadata></record></GetRecord></OAI-PMH>