<?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>S0035-001X2002000400014</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Función de onda hidrogenoide: nueva fórmula para una vieja integral]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ortiz Castro]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Instituto Politécnico Nacional Centro de Investigación y de Estudios Avanzados Departamento de Física]]></institution>
<addr-line><![CDATA[México Distrito Federal]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2002</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2002</year>
</pub-date>
<volume>48</volume>
<numero>4</numero>
<fpage>360</fpage>
<lpage>365</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2002000400014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2002000400014&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2002000400014&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Presentamos una expresión algebraica para encontrar la integral que nos permite calcular de manera general los valores medios &#9001;r n&#9002;, n &#8712; Z, a partir de la función de onda radial de los átomos hidrogenoides.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[We present a general formula that allows us to calculate the mean value &#9001;r n&#9002;,n &#8712; Z, for the radial wave functions of the hidrogen-like atoms.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Función de onda radial hidrogenoide]]></kwd>
<kwd lng="es"><![CDATA[polinomios asociados de Laguerre]]></kwd>
<kwd lng="es"><![CDATA[valores medios &#9001;r n&#9002;]]></kwd>
<kwd lng="es"><![CDATA[factoriales negativos]]></kwd>
<kwd lng="en"><![CDATA[Hydrogen-like radial wave-function]]></kwd>
<kwd lng="en"><![CDATA[Laguerre's associated polynomials]]></kwd>
<kwd lng="en"><![CDATA[mean values &#9001;r n&#9002;]]></kwd>
<kwd lng="en"><![CDATA[negative factorials]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  	    <p align="justify"><font face="verdana" size="4">Ense&ntilde;anza</font></p>  	    <p>&nbsp;</p>  	    <p align="center"><font face="verdana" size="4"><b>Funci&oacute;n de onda hidrogenoide: nueva f&oacute;rmula para una vieja integral</b></font></p>  	    <p>&nbsp;</p>  	    <p align="center"><font face="verdana" size="2"><b>Antonio Ortiz Castro</b></font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><i>Departamento de F&iacute;sica, CINVESTAV, IPN Apdo. Post. 14&#45;740, 07000, M&eacute;xico D.F. M&eacute;xico.</i></font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2">Recibido el 9 de mayo de 2001.    ]]></body>
<body><![CDATA[<br> 	Aceptado el 13 de mayo de 2002.</font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font></p>  	    <p align="justify"><font face="verdana" size="2">Presentamos una expresi&oacute;n algebraica para encontrar la integral que nos permite calcular de manera general los valores medios &#9001;<i>r<sup>n</sup></i>&#9002;<i>, n &isin;</i> <b>Z,</b> a partir de la funci&oacute;n de onda radial de los &aacute;tomos hidrogenoides.</font></p>  	    <p align="justify"><font face="verdana" size="2"><b>Descriptores:</b> Funci&oacute;n de onda radial hidrogenoide; polinomios asociados de Laguerre; valores medios &#9001;<i>r<sup>n</sup></i>&#9002;<i>;</i> factoriales negativos.</font></p>      <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><b>Abstract</b></font></p>  	    <p align="justify"><font face="verdana" size="2">We present a general formula that allows us to calculate the mean value &#9001;<i>r<sup>n</sup></i><sup></sup>&#9002;<i>,n &isin;</i> <b>Z,</b> for the radial wave functions of the hidrogen&#45;like atoms.</font></p>      <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Hydrogen&#45;like radial wave&#45;function; Laguerre's associated polynomials; mean values &#9001;<i>r<sup>n</sup></i>&#9002;<i>;</i> negative factorials.</font></p>      <p>&nbsp;</p>  	    ]]></body>
<body><![CDATA[<p align="justify"><font face="verdana" size="2">PACS: 02.30Gp; 02.30.Cj.</font></p>  	    <p>&nbsp;</p>  	    <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v48n4/v48n4a14.pdf" target="_blank">DESCARGAR ART&Iacute;CULO EN FORMATO PDF</a></font></p>     <p>&nbsp;</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. Pauling, E. B. Wilson, <i>Introduction to Quantum Mechanics</i> (McGraw&#45;Hill, 1935).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8287937&pid=S0035-001X200200040001400001&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. I. Schiff, <i>Quantum Mechanics,</i> 3a. Edici&oacute;n (McGraw&#45;Hill, 1968).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8287939&pid=S0035-001X200200040001400002&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. R. B. Leighton, <i>Principles of Modern Physics</i> (McGraw&#45;Hill, 1959).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8287941&pid=S0035-001X200200040001400003&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">4. I. N. Sneddon, <i>Special Functions of Mathematical Physics and Chemistry.</i> 3a. Edici&oacute;n (Longman Group Ltd., 1980).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8287943&pid=S0035-001X200200040001400004&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">5. J. H. Van Vleck, <i>The Theory of Electric and Magnetic Susceptibilities</i> (Oxford University Press, 1932).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8287945&pid=S0035-001X200200040001400005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      ]]></body><back>
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</back>
</article>
