<?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>S0035-001X2012000200001</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Cien ańos de la función de distribución de Jüttner para el gas relativista]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chacón-Acosta]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Autónoma Metropolitana-Cuajimalpa Departamento de Matemáticas Aplicadas y Sistemas ]]></institution>
<addr-line><![CDATA[México D.F.]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2012</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2012</year>
</pub-date>
<volume>58</volume>
<numero>2</numero>
<fpage>117</fpage>
<lpage>126</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2012000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2012000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2012000200001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[En 2011 se cumple un siglo de que Ferencz Jüttner obtuvo la función de distribución para el gas relativista. Esta distribución estuvo envuelta en una polémica que duró casi un siglo y que estuvo relacionada con las bases de la termodinámica relativista. En el presente trabajo se hace una breve revisión de lo sucedido en éstos cien ańos alrededor de la distribución relativista de Jüttner. Se describe parte del trabajo original de Jüttner, las circunstancias en las que obtuvo su distribución, así como las características particulares de esta comparadas con la bien conocida distribución de Maxwell-Boltzmann para el gas no relativista en equilibrio. En los apartados finales se mencionan las aplicaciones principales de la distribución de Jüttner desde el trabajo de Chandrasekhar hasta el plasma de quarks y gluones. Se discuten también los desarrollos más recientes que parecen indicar una solución a la polémica en que estuvo involucrada la distribución relativista.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[In 2011 marks a century that Ferencz Jüttner obtained the distribution function for the relativistic gas. This distribution was involved in a controversy that lasted nearly a century and was related to the foundations of relativistic thermodynamics. In this paper it is done a brief review of what happened in the last hundred years around the relativistic Jüttner distribution. It is described part of the Jüttner's original work, the circumstances under which he obtain his distribution as well as the particular characteristics of it compared with those od the well known Maxwell-Boltzmann equilibrium distribution for the non-relativistic gas. In the final sections, there are listed the main applications of the Jüttner distribution, from the work of Chandrasekhar to the quark-gluon plasma. There are also discussed the most recent developments that suggest a solution to the controversy that was surrounded the relativistic distribution.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Relatividad especial]]></kwd>
<kwd lng="es"><![CDATA[termodinámica]]></kwd>
<kwd lng="es"><![CDATA[teoría cinética de los gases]]></kwd>
<kwd lng="es"><![CDATA[hidrodinámica]]></kwd>
<kwd lng="en"><![CDATA[Special relativity]]></kwd>
<kwd lng="en"><![CDATA[thermodynamics]]></kwd>
<kwd lng="en"><![CDATA[kinetic theory of gases]]></kwd>
<kwd lng="en"><![CDATA[hydrodynamics]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Revisi&oacute;n</font></p>     <p align="justify"><font face="verdana" size="4">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>Cien a&ntilde;os de la funci&oacute;n de distribuci&oacute;n de J&uuml;ttner para el gas relativista</b></font></p>     <p align="center"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>G. Chac&oacute;n&#150;Acosta</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>Departamento de Matem&aacute;ticas Aplicadas y Sistemas, Universidad Aut&oacute;noma Metropolitana&#150;Cuajimalpa, Artificios 40, M&eacute;xico D.F. 01120, M&eacute;xico, e&#150;mail: </i><a href="mailto:gchacon@correo.cua.uam.mx">gchacon@correo.cua.uam.mx</a></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">Recibido el 22 de agosto de 2011.    <br> Aceptado el 31 de enero de 2012.</font></p>     ]]></body>
<body><![CDATA[<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">En 2011 se cumple un siglo de que Ferencz J&uuml;ttner obtuvo la funci&oacute;n de distribuci&oacute;n para el gas relativista. Esta distribuci&oacute;n estuvo envuelta en una pol&eacute;mica que dur&oacute; casi un siglo y que estuvo relacionada con las bases de la termodin&aacute;mica relativista. En el presente trabajo se hace una breve revisi&oacute;n de lo sucedido en &eacute;stos cien a&ntilde;os alrededor de la distribuci&oacute;n relativista de J&uuml;ttner. Se describe parte del trabajo original de J&uuml;ttner, las circunstancias en las que obtuvo su distribuci&oacute;n, as&iacute; como las caracter&iacute;sticas particulares de esta comparadas con la bien conocida distribuci&oacute;n de Maxwell&#150;Boltzmann para el gas no relativista en equilibrio. En los apartados finales se mencionan las aplicaciones principales de la distribuci&oacute;n de J&uuml;ttner desde el trabajo de Chandrasekhar hasta el plasma de quarks y gluones. Se discuten tambi&eacute;n los desarrollos m&aacute;s recientes que parecen indicar una soluci&oacute;n a la pol&eacute;mica en que estuvo involucrada la distribuci&oacute;n relativista.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>Relatividad especial; termodin&aacute;mica; teor&iacute;a cin&eacute;tica de los gases; hidrodin&aacute;mica.</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">In 2011 marks a century that Ferencz J&uuml;ttner obtained the distribution function for the relativistic gas. This distribution was involved in a controversy that lasted nearly a century and was related to the foundations of relativistic thermodynamics. In this paper it is done a brief review of what happened in the last hundred years around the relativistic J&uuml;ttner distribution. It is described part of the J&uuml;ttner's original work, the circumstances under which he obtain his distribution as well as the particular characteristics of it compared with those od the well known Maxwell&#150;Boltzmann equilibrium distribution for the non&#150;relativistic gas. In the final sections, there are listed the main applications of the J&uuml;ttner distribution, from the work of Chandrasekhar to the quark&#150;gluon plasma. There are also discussed the most recent developments that suggest a solution to the controversy that was surrounded the relativistic distribution.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Special relativity; thermodynamics; kinetic theory of gases; hydrodynamics.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">PACS: 03.30.+p; 05.70.&#150;a; 51.10.+y; 95.30.Lz</font></p>     ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v58n2/v58n2a1.pdf" target="_blank">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>Referencias</b></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">1. F. J&uuml;ttner, <i>Ann. Physik </i><b>339 </b>(1911) 856.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8376470&pid=S0035-001X201200020000100001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">2. F. J&uuml;ttner, <i>Ann. Physik</i><b>340 </b>(1911) 145.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8376472&pid=S0035-001X201200020000100002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     <!-- ref --><p align="justify"><font face="verdana" size="2">3. F. J&uuml;ttner, <i>Zeitschr. Phys. </i><b>47 </b>(1928) 542.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8376474&pid=S0035-001X201200020000100003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>     ]]></body>
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