<?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>S0035-001X2003000300014</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Fórmulas y teoremas de adición de las funciones elípticas de Jacobi]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bautista]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Piña]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soto]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento de Física ]]></institution>
<addr-line><![CDATA[Iztapalapa Distrito Federal]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2003</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2003</year>
</pub-date>
<volume>49</volume>
<numero>3</numero>
<fpage>276</fpage>
<lpage>282</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2003000300014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2003000300014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2003000300014&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Este trabajo está dedicado al estudio sistemático de las formulas y teoremas de adición de las funciones elípticas de Jacobi. Demostramos a partir de las propiedades fundamentales todas las ecuaciones conocidas y, al mismo tiempo, clasificamos las ecuaciones y las ordenamos en la forma de mayor utilidad, de manera que se puede disponer de un formulario satisfactorio. Se expresan los teoremas de adición con lenguaje vectorial, como 5 vectores paralelos de dimensión 4, y se descubren con estructura muy simple a 16 vectores ortogonales a la dirección anterior de los 5 vectores. Se agrupan los 16 en conjuntos de cuatro vectores, ortogonales también a un vector de la base estándar. Cada grupo de los cuatro vectores es linealmente dependiente de dos vectores, con lo cual asociamos un tensor antisimétrico a cada cuarteto.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[This paper is dedicated to the systematic study of the formulae and addition theorems of the Jacobi's functions. Starting from fundamental properties, we show most known equations and, at the same time, we classify and sort them in the most useful form, in order to get a satisfactory formulary. The addition theorems are expressed in vectorial language, as five parallel vectors in four dimensions. We also discover 16 orthogonal vectors to the above mentioned direction, with a very simple structure, notwithstanding only three of them are linearly independent. We group them in sets of four vectors, also orthogonal to one different vector of the standard basis. In each group of four vectors, only two of them are linearly independent, therefore we associate an antisymmetric tensor to each quartet.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Teoremas de adición]]></kwd>
<kwd lng="es"><![CDATA[funciones de Jacobi]]></kwd>
<kwd lng="es"><![CDATA[relaciones de ortogonalidad]]></kwd>
<kwd lng="en"><![CDATA[Addition theorems]]></kwd>
<kwd lng="en"><![CDATA[Jacobi's functions]]></kwd>
<kwd lng="en"><![CDATA[orthogonaly relations]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Ense&ntilde;anza</font></p>      <p align="justify">&nbsp;</p>     <p align="center"><font face="verdana" size="4"><b>F&oacute;rmulas y teoremas de adici&oacute;n de las funciones el&iacute;pticas de Jacobi</b></font></p>      <p align="center">&nbsp;</p>     <p align="center"><font face="verdana" size="2"><b>G. Bautista, E. Pi&ntilde;a y E. Soto</b></font></p>      <p align="center">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><i>Departamento de F&iacute;sica, Universidad Aut&oacute;noma Metropolitana&#45;Iztapalapa,</i> <i>P.</i> <i>O. Box 55 534 M&eacute;xico, D. F., 09340 M&eacute;xico</i> e&#45;mail: <a href="mailto:pge@xanum.uam.mx">pge@xanum.uam.mx</a></font></p>      <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2">Recibido el 19 de julio de 2002.     <br>   Aceptado el 9 de octubre de 2002.</font></p>      ]]></body>
<body><![CDATA[<p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>      <p align="justify"><font face="verdana" size="2">Este trabajo est&aacute; dedicado al estudio sistem&aacute;tico de las formulas y teoremas de adici&oacute;n de las funciones el&iacute;pticas de Jacobi. Demostramos a partir de las propiedades fundamentales todas las ecuaciones conocidas y, al mismo tiempo, clasificamos las ecuaciones y las ordenamos en la forma de mayor utilidad, de manera que se puede disponer de un formulario satisfactorio. Se expresan los teoremas de adici&oacute;n con lenguaje vectorial, como 5 vectores paralelos de dimensi&oacute;n 4, y se descubren con estructura muy simple a 16 vectores ortogonales a la direcci&oacute;n anterior de los 5 vectores. Se agrupan los 16 en conjuntos de cuatro vectores, ortogonales tambi&eacute;n a un vector de la base est&aacute;ndar. Cada grupo de los cuatro vectores es linealmente dependiente de dos vectores, con lo cual asociamos un tensor antisim&eacute;trico a cada cuarteto.</font></p>      <p align="justify"><font face="verdana" size="2"><b>Plabras clave:</b> Teoremas de adici&oacute;n, funciones de Jacobi, relaciones de ortogonalidad.</font></p>      <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>      <p align="justify"><font face="verdana" size="2">This paper is dedicated to the systematic study of the formulae and addition theorems of the Jacobi's functions. Starting from fundamental properties, we show most known equations and, at the same time, we classify and sort them in the most useful form, in order to get a satisfactory formulary. The addition theorems are expressed in vectorial language, as five parallel vectors in four dimensions. We also discover 16 orthogonal vectors to the above mentioned direction, with a very simple structure, notwithstanding only three of them are linearly independent. We group them in sets of four vectors, also orthogonal to one different vector of the standard basis. In each group of four vectors, only two of them are linearly independent, therefore we associate an antisymmetric tensor to each quartet.</font></p>      <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Addition theorems, Jacobi's functions, orthogonaly relations.</font></p>      <p align="justify"><font face="verdana" size="2">PACS: 45.40.Cc; 02.30.Gp</font></p>     <p align="justify">&nbsp;</p>      ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v49n3/v49n3a14.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><b>Referencias bibliogr&aacute;ficas</b></font></p>      <!-- ref --><p align="justify"><font face="verdana" size="2">1. M.L. Boas, <i>Mathematical Methods in the Physical Sciences</i> (J. Wiley, New York, 1966) p. 422.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8294347&pid=S0035-001X200300030001400001&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. L. Landau and E. 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