<?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>S0035-001X2003000500005</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[On the Hamilton-Jacobi formalism for fermionic systems]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramirez]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ritto]]></surname>
<given-names><![CDATA[P.A.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad de Guanajuato Instituto de Física ]]></institution>
<addr-line><![CDATA[León Guanajuato]]></addr-line>
<country>México</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Benemérita Universidad Autónoma de Puebla Facultad de Ciencias Físico Matemáticas ]]></institution>
<addr-line><![CDATA[Puebla ]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>10</month>
<year>2003</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>10</month>
<year>2003</year>
</pub-date>
<volume>49</volume>
<numero>5</numero>
<fpage>415</fpage>
<lpage>420</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0035-001X2003000500005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0035-001X2003000500005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0035-001X2003000500005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[The Hamilton-Jacobi formalism for fermionic systems is studied. We derive the HJ equations from the canonical transformation procedure, taking into account the second class constraints typical of these systems. It is shown that these constraints ensure the consistency of the solution, according to the characteristics of fermionic systems. The explicit solutions for simple examples are computed. Some aspects related to canonical transformations and to quantization are discussed.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Se estudia el formalismo de Hamilton-Jacobi para sistemas fermiónicos. Se derivan las ecuaciones de HJ basados en el procedimiento de las transformaciones canónicas, tomando en cuenta las constricciones de segunda clase típicas de estos sistemas. Se muestra que estas constricciones aseguran la consistencia de la solución, de acuerdo a las características de los sistemas fermiónicos y se calculan las soluciones explícitas para dos ejemplos simples. Se discuten algunos aspectos relacionados con las transformaciones canónicas y la cuantización.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Hamilton-Jacobi]]></kwd>
<kwd lng="en"><![CDATA[fermionic systems]]></kwd>
<kwd lng="es"><![CDATA[Hamilton-Jacobi]]></kwd>
<kwd lng="es"><![CDATA[sistemas fermiónicos]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="justify"><font face="verdana" size="4">Investigaci&oacute;n</font></p>      <p align="justify">&nbsp;</p>     <p align="center"><font face="verdana" size="4"><b>On the Hamilton&#45;Jacobi formalism for fermionic systems</b></font></p>      <p align="center">&nbsp;</p>     <p align="center"><font face="verdana" size="2"><b>C. Ramirez<sup>1</sup>*, P.A. Ritto<sup>2</sup>&sect;</b></font></p>       <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><i><sup>1</sup> Instituto de F&iacute;sica de la Universidad de Guanajuato, P.O. BoxE&#45;143, 37150 Le&oacute;n Gto., M&eacute;xico,</i> e&#45;mail:  <a href="mailto:cramirez@fcfm.buap.mx">cramirez@fcfm.buap.mx</a> *Permanent address: Facultad de Ciencias F&iacute;sico Matem&aacute;ticas, Universidad Aut&oacute;noma de Puebla, P.O. Box 1364, 72000 Puebla, M&eacute;xico.</font></p>      <p align="justify"><font face="verdana" size="2"><sup>2 </sup><i>Facultad de Ciencias F&iacute;sico Matem&aacute;ticas, Universidad Aut&oacute;noma de Puebla, P.O. Box 1364, 72000 Puebla, M&eacute;xico,</i> e&#45;mail: <a href="mailto:parmunacar@yahoo.com.mx">parmunacar@yahoo.com.mx</a> &sect;Permanent address: Facultad de Ingenier&iacute;a, Universidad Aut&oacute;noma del Carmen, 24180 Cd. del Carmen, Camp., M&eacute;xico.</font></p>      <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2">Recibido el 21 de octubre de 2002.     ]]></body>
<body><![CDATA[<br>   Aceptado el 12 de mayo de 2003.</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">The Hamilton&#45;Jacobi formalism for fermionic systems is studied. We derive the HJ equations from the canonical transformation procedure, taking into account the second class constraints typical of these systems. It is shown that these constraints ensure the consistency of the solution, according to the characteristics of fermionic systems. The explicit solutions for simple examples are computed. Some aspects related to canonical transformations and to quantization are discussed.</font></p>      <p align="justify"><font face="verdana" size="2"><b>Keywords:</b> Hamilton&#45;Jacobi; fermionic systems.</font></p>     <p align="justify">&nbsp;</p>       <p align="justify"><font face="verdana" size="2"><b>Resumen</b></font>        <p align="justify"><font face="verdana" size="2">Se estudia el formalismo de Hamilton&#45;Jacobi para sistemas fermi&oacute;nicos. Se derivan las ecuaciones de HJ basados en el procedimiento de las transformaciones can&oacute;nicas, tomando en cuenta las constricciones de segunda clase t&iacute;picas de estos sistemas. Se muestra que estas constricciones aseguran la consistencia de la soluci&oacute;n, de acuerdo a las caracter&iacute;sticas de los sistemas fermi&oacute;nicos y se calculan las soluciones expl&iacute;citas para dos ejemplos simples. Se discuten algunos aspectos relacionados con las transformaciones can&oacute;nicas y la cuantizaci&oacute;n.</font></p>      <p align="justify"><font face="verdana" size="2"><b>Palabras clave:</b> Hamilton&#45;Jacobi; sistemas fermi&oacute;nicos.</font></p>       <p align="justify"><font face="verdana" size="2">PACS: 31.15.Gy, 45.20.&#45;d,45.90.+t</font></p>      ]]></body>
<body><![CDATA[<p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><a href="/pdf/rmf/v49n5/v49n5a5.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>Acknowledgments</b></font></p>      <p align="justify"><font face="verdana" size="2">This work was supported in part by CONACyT M&eacute;xico Grant No. 37851E. P. R. thanks the Department of Applied Physics of Cinvestav&#45;M&eacute;rida, where part of this work was done.</font></p>      <p align="justify">&nbsp;</p>     <p align="justify"><font face="verdana" size="2"><b>References</b></font></p>      <!-- ref --><p align="justify"><font face="verdana" size="2">1. R. Casalbuoni, <i>Il Nuovo Cimento</i> 33 A (1976) 389.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297286&pid=S0035-001X200300050000500001&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. Paul A. M. Dirac, <i>Lectures on Quantum Mechanics</i> (Yeshiva University, New York, 1964).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297288&pid=S0035-001X200300050000500002&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. A.J. Hanson, T. Regge, and C. Teitelboim, <i>Constrained Hamiltonian Systems</i> (Princeton, New Jersey, 1974).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297290&pid=S0035-001X200300050000500003&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. J. Goldberg, E. Newmann, and C. Rovelli, <i>J. Math. Phys.</i> 32 (1991) 2739.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297292&pid=S0035-001X200300050000500004&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. Ma&ntilde;es and B. Zumino, <i>Nuclear Physics</i> B270 (1986) 651.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297294&pid=S0035-001X200300050000500005&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">6. Y. G&uuml;ler, <i>Il Nuovo Cimento</i> 107 B (1992) 1389.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297296&pid=S0035-001X200300050000500006&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">7. B.M. Pimentel, R.G. Teixeira, and J.L. Tomazelli, <i>Annals Phys.</i> 267 (1998) 75.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297298&pid=S0035-001X200300050000500007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      <p align="justify"><font face="verdana" size="2">8. K.V. Tabunschyk, preprint hep&#45;th/9811020.</font></p>      <p align="justify"><font face="verdana" size="2">9. P.A. Ritto Mijangos, Bachelor thesis, Universidad Aut&oacute;noma de Puebla, November 1999.</font></p>      <!-- ref --><p align="justify"><font face="verdana" size="2">10. C.A.P. Galvao and C. Teitelboim, <i>J. Math. Phys.</i> 21 (1980) 1863;    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297302&pid=S0035-001X200300050000500008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --> M. Henneaux and C. Teitelboim, <i>Quantization</i> <i>of</i> <i>gauge systems</i> (Princeton University Press, 1992).    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=8297303&pid=S0035-001X200300050000500009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font></p>      ]]></body><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Casalbuoni]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<source><![CDATA[Il Nuovo Cimento]]></source>
<year>1976</year>
<numero>33 A</numero>
<issue>33 A</issue>
<page-range>389</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dirac]]></surname>
<given-names><![CDATA[Paul A. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Lectures on Quantum Mechanics]]></source>
<year>1964</year>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[Yeshiva University]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hanson]]></surname>
<given-names><![CDATA[A.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Regge]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Teitelboim]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Constrained Hamiltonian Systems]]></source>
<year>1974</year>
<publisher-loc><![CDATA[New Jersey ]]></publisher-loc>
<publisher-name><![CDATA[Princeton]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B4">
<label>4</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Goldberg]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Newmann]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Rovelli]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Math. Phys.]]></source>
<year>1991</year>
<volume>32</volume>
<page-range>2739</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mañes]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Zumino]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Nuclear Physics]]></source>
<year>1986</year>
<volume>B270</volume>
<page-range>651</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Güler]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Il Nuovo Cimento]]></source>
<year>1992</year>
<numero>107 B</numero>
<issue>107 B</issue>
<page-range>1389</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pimentel]]></surname>
<given-names><![CDATA[B.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Teixeira]]></surname>
<given-names><![CDATA[R.G.]]></given-names>
</name>
<name>
<surname><![CDATA[Tomazelli]]></surname>
<given-names><![CDATA[J.L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Annals Phys.]]></source>
<year>1998</year>
<volume>267</volume>
<page-range>75</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Galvao]]></surname>
<given-names><![CDATA[C.A.P.]]></given-names>
</name>
<name>
<surname><![CDATA[Teitelboim]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Math. Phys.]]></source>
<year>1980</year>
<volume>21</volume>
<page-range>1863</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Henneaux]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Teitelboim]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Quantization of gauge systems]]></source>
<year>1992</year>
<publisher-name><![CDATA[Princeton University Press]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
