<?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>1409-2433</journal-id>
<journal-title><![CDATA[Revista de Matemática Teoría y Aplicaciones]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mat]]></abbrev-journal-title>
<issn>1409-2433</issn>
<publisher>
<publisher-name><![CDATA[Centro de Investigaciones en Matemática Pura y Aplicada (CIMPA) y Escuela de Matemática, San José, Costa Rica.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1409-24332014000200001</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[G -estructuras de orden superior]]></article-title>
<article-title xml:lang="en"><![CDATA[Superior order G -structures]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rosales-Ortega]]></surname>
<given-names><![CDATA[José]]></given-names>
</name>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad de Costa Rica School of Mathematics ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2014</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2014</year>
</pub-date>
<volume>21</volume>
<numero>2</numero>
<fpage>167</fpage>
<lpage>187</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1409-24332014000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1409-24332014000200001&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1409-24332014000200001&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Estudiamos los rudimentos básicos sobre G-estructuras de orden superior, y luego probamos que el conjunto de automorfismos infinitesimales de una G-estructura geométrica sobre una variedad M es un grupo de Lie.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[In this article we study the basic facts about superior order G-structures, then we show that the set of infinitesimally automorphisms of a geometric G-structure is a closed Lie group.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[haz fibrado principal]]></kwd>
<kwd lng="es"><![CDATA[haz asociado]]></kwd>
<kwd lng="es"><![CDATA[G-estructura]]></kwd>
<kwd lng="en"><![CDATA[principal fiber bundle]]></kwd>
<kwd lng="en"><![CDATA[associated bundle]]></kwd>
<kwd lng="en"><![CDATA[G-structure]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <div style="text-align: justify; font-family: Verdana;">     <div style="text-align: center;"><font style="font-weight: bold;"  size="4"> G -estructuras de orden superior</font>    <br> </div> <font size="2"></font>    <br>     <div style="text-align: center;"><font style="font-weight: bold;"  size="4">Superior order G &#8211;structures</font>    <br> </div> <font size="2"></font>    <br>     <div style="text-align: center;"><font size="2">Jos&eacute; Rosales-Ortega<a href="#1">*</a><a name="2"></a>+    <br>     <br> </font></div> <font size="2"></font> <hr style="width: 100%; height: 2px;">    ]]></body>
<body><![CDATA[<br> <font style="font-weight: bold;" size="3">Resumen</font>    <br> <font size="2"></font>    <br> <font size="2">Estudiamos los rudimentos b&aacute;sicos sobre <span  style="font-style: italic;">G</span>-estructuras de orden superior, y luego probamos que el conjunto de automorfismos infinitesimales de una <span style="font-style: italic;">G</span>-estructura geom&eacute;trica sobre una variedad <span style="font-style: italic;">M</span> es un grupo de Lie.</font>    <br> <font size="2"></font>    <br> <font size="2"><span style="font-weight: bold;">Palabras clave:</span> haz fibrado principal; haz asociado; <span style="font-style: italic;">G</span>-estructura.</font>    <br> <font size="2"></font>    <br> <font style="font-weight: bold;" size="3">Abstract</font>    <br> <font size="2"></font>    <br> <font size="2">In this article we study the basic facts about superior order <span style="font-style: italic;">G</span>-structures, then we show that the set of infinitesimally automorphisms of a geometric <span style="font-style: italic;">G</span>-structure is a closed Lie group.</font>    <br> <font size="2"></font>    ]]></body>
<body><![CDATA[<br> <font size="2"><span style="font-weight: bold;">Keywords:</span> principal fiber bundle; associated bundle; G-structure.</font>    <br> <font size="2"></font>    <br> <font size="2"><span style="font-weight: bold;">Mathematics Subject Classification:</span> 53C05; 53C10.</font>    <br>     <br> <hr style="width: 100%; height: 2px;">    <br> <font size="2">Ver contenido disponible en pdf</font>    <br>     <br> <hr style="width: 100%; height: 2px;">    <br> <font style="font-weight: bold;" size="3">Referencias</font>    <br> <font size="2"></font>    ]]></body>
<body><![CDATA[<br>     <!-- ref --><div style="text-align: left;"><font size="2">[1] Candel, A.; Quiroga-Barranco, R. (2004) &#8220;Rigid and finite type geometric structures&#8221;, <span style="font-style: italic;">Geometriae Dedicata</span> <span style="font-weight: bold;">106</span>: 123&#8211;143.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1958786&pid=S1409-2433201400020000100001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>    <br> <font size="2"></font>    <!-- ref --><br> <font size="2">[2] D&#8217;Ambra, G.; Gromov, M. (1991) &#8220;Lectures in transformation groups: geometry and dynamics&#8221;, <span style="font-style: italic;">Surveys in Differential Geometry</span> <span style="font-weight: bold;">1</span>: 19&#8211;111.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1958789&pid=S1409-2433201400020000100002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> </font>    <br> <font size="2"></font>    <!-- ref --><br> <font size="2">[3] Duistermaat, J.J.; Kolk, J.A.C (2000) <span  style="font-style: italic;">Lie Groups</span>. Universitext, Springer-Verlag, Berlin.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1958792&pid=S1409-2433201400020000100003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>    <br> <font size="2"></font>    ]]></body>
<body><![CDATA[<!-- ref --><br> <font size="2">[4] Feres, R. (1998) <span style="font-style: italic;">Dynamical Systems and Semisimple Groups.</span> <span style="font-style: italic;">An Introduction</span>. Tracts in Mathematics 126, CambridgeUniversity Press, New York.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1958795&pid=S1409-2433201400020000100004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>    <br> <font size="2"></font>    <!-- ref --><br> <font size="2">[5] Gromov, M. (1988) <span style="font-style: italic;">Rigid transformations groups</span>, in: D. Bernard &amp; Y. Choquet-Bruhat (Eds.) <span style="font-style: italic;">G&eacute;om&eacute;trie Diff&eacute;rentielle, Travaux en Cours</span>, Hermann, Paris: 65&#8211;139.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1958798&pid=S1409-2433201400020000100005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>    <br> <font size="2"></font>    <!-- ref --><br> <font size="2">[6] Kobayashi, S.; Nomizu, K. (1980) <span  style="font-style: italic;">Foundations of Differential Geometry</span>, Vol. 1, John Wiley &amp; Sons, New York.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1958801&pid=S1409-2433201400020000100006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>    <br> <font size="2"></font>    <!-- ref --><br> <font size="2">[7] Kol&aacute;?r, I.; Michor, P.W.; Slov&aacute;k, J. (1993) <span style="font-style: italic;">Natural Operations in Differential Geometry</span>, Springer-Verlag, Berlin.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1958804&pid=S1409-2433201400020000100007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>    <br> <font size="2"></font>    <!-- ref --><br> <font size="2">[8] Rosales, J. (2005) <span style="font-style: italic;">The Gromov&#8217;s Centralizer Theorem for Semisimple Lie group Actions.</span> Ph.D Thesis, Centro de Investigaci&oacute;n y EstudiosAvanzados del Instituto Polit&eacute;cnico Nacional, M&eacute;xico.    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=1958807&pid=S1409-2433201400020000100008&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --></font>    <br> </div> <font size="2"></font>    <br> <font size="2"><a name="1"></a><a href="#2">*</a> School of Mathematics, Instituto Tecnol&oacute;gico de Costa Rica y Universidad de Costa Rica, Costa Rica. E-Mail: jose.rosales@ucr.ac.cr</font>    <br> <hr style="width: 100%; height: 2px;">     <div style="text-align: center;"><font size="2"><span  style="font-weight: bold;">Received: 18/Mar/2011; Revised: 17/Dec/2013; Accepted: 15/Jan/2014</span></font></div> <font size="2"></font></div>      ]]></body><back>
<ref-list>
<ref id="B1">
<label>1</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Candel]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Quiroga-Barranco]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Rigid and finite type geometric structures]]></article-title>
<source><![CDATA[Geometriae Dedicata]]></source>
<year>2004</year>
<volume>106</volume>
<page-range>123-143</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>2</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[D’Ambra]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
<name>
<surname><![CDATA[Gromov]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Lectures in transformation groups: geometry and dynamics]]></article-title>
<source><![CDATA[Surveys in Differential Geometry]]></source>
<year>1991</year>
<volume>1</volume>
<page-range>19-111</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Duistermaat]]></surname>
<given-names><![CDATA[J.J.]]></given-names>
</name>
<name>
<surname><![CDATA[Kolk]]></surname>
<given-names><![CDATA[J.A.C]]></given-names>
</name>
</person-group>
<source><![CDATA[Lie Groups]]></source>
<year>2000</year>
<publisher-loc><![CDATA[Berlin ]]></publisher-loc>
<publisher-name><![CDATA[Universitext, Springer-Verlag]]></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[Feres]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Dynamical Systems and Semisimple Groups: An Introduction]]></article-title>
<source><![CDATA[Tracts in Mathematics]]></source>
<year>1998</year>
<volume>126</volume>
<publisher-loc><![CDATA[New York ]]></publisher-loc>
<publisher-name><![CDATA[CambridgeUniversity Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B5">
<label>5</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gromov]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang="en"><![CDATA[Rigid transformations groups]]></article-title>
<person-group person-group-type="editor">
<name>
<surname><![CDATA[Bernard]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Choquet-Bruhat]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<source><![CDATA[Géométrie Différentielle]]></source>
<year>1988</year>
<page-range>65-139</page-range><publisher-loc><![CDATA[Paris ]]></publisher-loc>
<publisher-name><![CDATA[Travaux en Cours, Hermann]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kobayashi]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Nomizu]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Foundations of Differential Geometry]]></source>
<year>1980</year>
<volume>1</volume>
<publisher-loc><![CDATA[^eNew York New York]]></publisher-loc>
<publisher-name><![CDATA[John Wiley & Sons]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kolár]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Michor]]></surname>
<given-names><![CDATA[P.W.]]></given-names>
</name>
<name>
<surname><![CDATA[Slovák]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Natural Operations in Differential Geometry]]></source>
<year>1993</year>
<publisher-loc><![CDATA[^eBerlin Berlin]]></publisher-loc>
<publisher-name><![CDATA[Springer-Verlag]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosales]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[The Gromov’s Centralizer Theorem for Semisimple Lie group Actions.]]></source>
<year>2005</year>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
