<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0035-001X</journal-id>
<journal-title><![CDATA[Revista mexicana de física]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fis.]]></abbrev-journal-title>
<issn>0035-001X</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0035-001X2006000900039</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Non-Abelian Born-Infeld action]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gianvittorio]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Restuccia]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Stephany]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Simón Bolívar Departamento de Física ]]></institution>
<addr-line><![CDATA[Caracas ]]></addr-line>
<country>Venezuela</country>
</aff>
<aff id="A02">
<institution><![CDATA[,The University of Warwick Centre for Scientific Computing ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>05</month>
<year>2006</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>05</month>
<year>2006</year>
</pub-date>
<volume>52</volume>
<fpage>137</fpage>
<lpage>139</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2006000900039&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2006000900039&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2006000900039&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[We introduce a realization of the algebra of diffeomorfisms in terms of the fields of a non-abelian Born-Infeld theory (NBI), which generalizes the abelian case. We argue that the non-abelian Born Infeld action which describes the interaction of D-branes in the low energy regime, may be constructed from the Hamiltonian obtained by taking the symmetry generators as gauge constraints. We explicitly obtain the interacting terms to the sixth order in the curvature of the Yang-Mills fields. Our results for the NBI action agree up to the fourth order with the ones obtained from the interacting string theory.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Introducimos una realización del álgebra de los difeomorfismos en en términos de los campos de un modelo de Born-Infeld no abeliano. Argumentamos que la acción del modelo de Born Infeld no abeliano que describe la interacción de D-branas en el límite de bajas energías puede ser construido a partir del hamiltoniano, que se obtiene de tomar los generadores de la simetría como vínculos de calibre. Obtenemos explícitamente los términos hasta el orden seis en el campo de Yang-Mills. Nuestros resultados concuerdan hasta el orden cuarto con los obtenidos de la teoría de cuerdas.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[NBI]]></kwd>
<kwd lng="en"><![CDATA[Diffeomorfisms]]></kwd>
<kwd lng="en"><![CDATA[D-branes]]></kwd>
<kwd lng="es"><![CDATA[NBI]]></kwd>
<kwd lng="es"><![CDATA[Difeomorfismos]]></kwd>
<kwd lng="es"><![CDATA[D-branas]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">F&iacute;sica Te&oacute;rica </font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>Non&#150;Abelian Born&#150;Infeld action</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>R. Gianvittorio&ordf;, A. Restucciaâ–º&ordf; and J. Stephany<sup>&ordf;,b</sup></b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>&ordf; Universidad Sim&oacute;n Bol&iacute;var, Departamento de F&iacute;sica, </i><i>Apartado Postal 89000, Caracas 1080&#150;A, Venezuela e mail: <i><a href="mailto:ritagian@usb.ve">ritagian@usb.ve</a>, <i><a href="mailto:arestu@usb.ve">arestu@usb.ve</a></i></i></i></font></p>     <p align="justify"><font face="verdana" size="2"><i><sup>b</sup> Centre for Scientific Computing, The University of Warwick, Coventry CV4 7AL, UK, e&#150;mail: <a href="mailto:stephany@usb.ve">stephany@usb.ve</a></i></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido el 24 de noviembre de 2003    ]]></body>
<body><![CDATA[<br> Aceptado el 12 de octubre de 2004</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>     <p align="justify"><font face="verdana" size="2">We introduce a realization of the algebra of diffeomorfisms in terms of the fields of a non&#150;abelian Born&#150;Infeld theory (NBI), which generalizes the abelian case. We argue that the non&#150;abelian Born Infeld action which describes the interaction of <i>D</i>&#150;branes in the low energy regime, may be constructed from the Hamiltonian obtained by taking the symmetry generators as gauge constraints. We explicitly obtain the interacting terms to the sixth order in the curvature of the Yang&#150;Mills fields. Our results for the NBI action agree up to the fourth order with the ones obtained from the interacting string theory.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>NBI, Diffeomorfisms, D&#150;branes</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>     <p align="justify"><font face="verdana" size="2">Introducimos una realizaci&oacute;n del &aacute;lgebra de los difeomorfismos en en t&eacute;rminos de los campos de un modelo de Born&#150;Infeld no abeliano. Argumentamos que la acci&oacute;n del modelo de Born Infeld no abeliano que describe la interacci&oacute;n de <i>D</i>&#150;branas en el l&iacute;mite de bajas energ&iacute;as puede ser construido a partir del hamiltoniano, que se obtiene de tomar los generadores de la simetr&iacute;a como v&iacute;nculos de calibre. Obtenemos expl&iacute;citamente los t&eacute;rminos hasta el orden seis en el campo de Yang&#150;Mills. Nuestros resultados concuerdan hasta el orden cuarto con los obtenidos de la teor&iacute;a de cuerdas.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>NBI, Difeomorfismos, D&#150;branas </font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">PACS: 11.25.&#150;w; 11.25.Tq; 11.25.Uv</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v52s3/v52s3a39.pdf">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. E.S. Fradkin and A.A. Tseytlin, <i>Phys. Lett. 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