<?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>1870-3542</journal-id>
<journal-title><![CDATA[Revista mexicana de física E]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fís. E]]></abbrev-journal-title>
<issn>1870-3542</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-35422007000100006</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Ecuaciones de advección-difusión, telégrafo y onda advectiva como superposiciones de transporte, difusión y onda: un enfoque didáctico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortigoza Capetillo]]></surname>
<given-names><![CDATA[G.M.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Veracruzana Facultad de Matemáticas ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2007</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2007</year>
</pub-date>
<volume>53</volume>
<numero>1</numero>
<fpage>48</fpage>
<lpage>51</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-35422007000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-35422007000100006&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-35422007000100006&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[En este trabajo se presentan soluciones exactas de las ecuaciones de advección-difusión y del telégrafo. Estas ecuaciones se han considerado como combinaciones de tres ecuaciones básicas, a saber: la ecuación de onda, la ecuación del transporte y la ecuación de difusión. Así, de manera natural, se introduce una tercera combinación, la ecuación de onda advectiva; la cual, a pesar de no ser muy popular, es un ejemplo sencillo y de valor didáctico, ya que permite explicar relaciones físicas y matemáticas de la superposición de las ecuaciones de transporte y ondas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[In this work we present exact solutions of the advection-diffusion and the telegraph equations. These equations are considered as combinations of the basic equations: wave, heat and transport equation. Thus, in a natural way, a third combination that we called advection-wave is introduced. Although this equation is not so popular like the other combinations, it is a simple example of didactical value that allow us to explain physical and mathematical relations for the superposition of transport and wave motion.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Enseñanza]]></kwd>
<kwd lng="es"><![CDATA[advección]]></kwd>
<kwd lng="es"><![CDATA[difusión]]></kwd>
<kwd lng="es"><![CDATA[ecuación de onda]]></kwd>
<kwd lng="en"><![CDATA[Physics Education]]></kwd>
<kwd lng="en"><![CDATA[advection]]></kwd>
<kwd lng="en"><![CDATA[diffusion]]></kwd>
<kwd lng="en"><![CDATA[wave equation]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Ense&ntilde;anza</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="4"><b>Ecuaciones de advecci&oacute;n&#150;difusi&oacute;n, tel&eacute;grafo y onda advectiva como superposiciones de transporte, difusi&oacute;n y onda: un enfoque did&aacute;ctico</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="center"><font face="verdana" size="2"><b>G.M. Ortigoza Capetillo</b></font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2"><i>Universidad Veracruzana, Facultad de Matem&aacute;ticas, </i>e.mail: <a href="mailto:gortigoza@uv.mx">gortigoza@uv.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 23 de febrero de 2006    <br>   Aceptado el 26 de octubre de 2006</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 este trabajo se presentan soluciones exactas de las ecuaciones de advecci&oacute;n&#150;difusi&oacute;n y del tel&eacute;grafo. Estas ecuaciones se han considerado como combinaciones de tres ecuaciones b&aacute;sicas, a saber: la ecuaci&oacute;n de onda, la ecuaci&oacute;n del transporte y la ecuaci&oacute;n de difusi&oacute;n. As&iacute;, de manera natural, se introduce una tercera combinaci&oacute;n, la ecuaci&oacute;n de <i>onda advectiva; </i>la cual, a pesar de no ser muy popular, es un ejemplo sencillo y de valor did&aacute;ctico, ya que permite explicar relaciones f&iacute;sicas y matem&aacute;ticas de la superposici&oacute;n de las ecuaciones de transporte y ondas.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Descriptores: </b>Ense&ntilde;anza; advecci&oacute;n; difusi&oacute;n; ecuaci&oacute;n de onda.</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 this work we present exact solutions of the advection&#150;diffusion and the telegraph equations. These equations are considered as combinations of the basic equations: wave, heat and transport equation. Thus, in a natural way, a third combination that we called advection&#150;wave is introduced. Although this equation is not so popular like the other combinations, it is a simple example of didactical value that allow us to explain physical and mathematical relations for the superposition of transport and wave motion.</font></p>     <p align="justify"><font face="verdana" size="2"><b>Keywords: </b>Physics Education, advection, diffusion, wave equation.</font></p>     <p align="justify"><font face="verdana" size="2">&nbsp;</font></p>     <p align="justify"><font face="verdana" size="2">PACS:01.40Fk;02.30Jr</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/rmfe/v53n1/v53n1a6.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. L.C. Evans, <i>Partial Differential Equations, </i>Graduate Studies in Mathematics, American Mathematical Society, 1998.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8500559&pid=S1870-3542200700010000600001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">2. J.D. Logan, <i>Applied Partial Differential Equations </i>(Springer&#150;Verlag, Undergradute Texts in Mathematics, 1998).</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8500560&pid=S1870-3542200700010000600002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">3. J. Cooper, <i>Introduction to Partial Differential Equations with Matlab </i>(Birkhauser, 1998).</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8500561&pid=S1870-3542200700010000600003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">4. S.J. Farlow, <i>Partial Differential Equations for Scientists and engineers </i>(Dover, 1993).</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8500562&pid=S1870-3542200700010000600004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">5. P. Duchateau y D.W. Zachmann, <i>Applied Partial Differential Equations </i>(Dover, 2002).</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8500563&pid=S1870-3542200700010000600005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">6. G.M. Ortigoza, <i>Animaciones en Matlab y Maple de Ecuaciones Diferenciales Parciales de la F&iacute;sica&#150;Matem&aacute;tica, </i>aceptado para su publicaci&oacute;n en la revista Mexicana de F&iacute;sica, 23 Agosto del 2006.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8500564&pid=S1870-3542200700010000600006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">7. website, <i>Useful   Physics   Simulations/Animations   website, </i><a href="http://cnr2.kent.edu/%7Ekeane/teaching/c_mech/links2.html" target="_blank">http://cnr2.kent.edu/keane/teaching/cmech/links2.html</a></font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8500565&pid=S1870-3542200700010000600007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">8. M.A. Pinsky, <i>Introduction to Partial Differential Equations with applications </i>(McGraw Hill, 1984).</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8500566&pid=S1870-3542200700010000600008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">9. E. Zauderer, <i>Partial Differential Equations of Applied Mathematics </i>(Wiley&#150;Interscience Series in Pure and applied mathematics, 1998).</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8500567&pid=S1870-3542200700010000600009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p align="justify"><font face="verdana" size="2">10. L. Konstadia y T.G. Hallam, <i>Traveling Wave Solutions of a Nonlinear Reaction&#150;Advection Equation </i>(Journal of Mathematical Biology) Vol. 38, p. 346.</font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8500568&pid=S1870-3542200700010000600010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> ]]></body><back>
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<article-title xml:lang="es"><![CDATA[Animaciones en Matlab y Maple de Ecuaciones Diferenciales Parciales de la Física-Matemática]]></article-title>
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