<?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>0034-7426</journal-id>
<journal-title><![CDATA[Revista Colombiana de Matemáticas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.colomb.mat.]]></abbrev-journal-title>
<issn>0034-7426</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia y Sociedad Colombiana de Matemáticas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0034-74262007000300008</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Algebraic representation of continua]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[SABOGAL P.]]></surname>
<given-names><![CDATA[SONIA M.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Industrial de Santander Escuela de matmá ]]></institution>
<addr-line><![CDATA[Bucaramanga ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>29</day>
<month>10</month>
<year>2007</year>
</pub-date>
<pub-date pub-type="epub">
<day>29</day>
<month>10</month>
<year>2007</year>
</pub-date>
<volume>41</volume>
<fpage>253</fpage>
<lpage>262</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0034-74262007000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0034-74262007000300008&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0034-74262007000300008&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Using the duality between the category whose objects are the representations of Hausdorff quotients of Cantor spaces and the category whose objects are the Cantor ring endowed with a link relation (this duality is a particular case of an extension of the Stone duality obtained in [3]), we obtain algebraic representations of the following continua: the unit interval I=[0,1], the unit circle S¹, the Sierpínski triangular curve and the simple triod.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Usando la dualidad entre la categoría cuyos objetos son las representaciones de cocientes Hausdorff de espacios de Cantor y la categoría cuyos objetos son el anillo de Cantor dotado con una relación de ligazón (esta dualidad es un caso particular de una extensión de la dualidad de Stone obtenida en [3]), obtenemos representaciones algebraicas de los siguientes continuos: el intervalo unidad I=[0,1], el círculo unitario S¹, la curva triangular de Sierpínski y el triodo simple.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Stone duality]]></kwd>
<kwd lng="en"><![CDATA[quotients of Stone spaces]]></kwd>
<kwd lng="en"><![CDATA[continua]]></kwd>
<kwd lng="en"><![CDATA[Cantor space]]></kwd>
<kwd lng="es"><![CDATA[Dualidad de Stone]]></kwd>
<kwd lng="es"><![CDATA[cocientes de los espacios de Stone]]></kwd>
<kwd lng="es"><![CDATA[continua]]></kwd>
<kwd lng="es"><![CDATA[espacio de Cantor]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[   <font face="verdana" size="2">      <p><b><font size="4">    <center>Algebraic representation of continua</center></font></b></p>    <br>      <center>SONIA M. SABOGAL P.<sup>1</sup></sup></center>    <br>  <sup>1</sup> Universidad Industrial de Santander, Bucaramanga, Colombia. E-mail: <a href="mailto:ssabogal@uis.edu.co">ssabogal@uis.edu.co </a></p>  <hr size=1>      <p><b>    <center>Abstract</center></b></p>      <p align="justify"> Using the duality between the category whose objects are the representations of Hausdorff quotients of Cantor spaces and the category whose objects are the Cantor ring endowed with a link relation (this duality is a particular case of an extension of the Stone duality obtained in 3), we obtain algebraic representations of the following continua: the unit interval <i>I</i>=0,1, the unit circle S<sup>1</sup>, the Sierp&iacute;nski triangular curve and the simple triod. </p>      <p><b>Key words:</b> Stone duality, quotients of Stone spaces, continua, Cantor space. </p>  <hr size=1> <i>2000 Mathematics Subject Classification. Primary: 54H10, 54B15. Secondary: 16W99, 13A99.</i> <hr size=1>      ]]></body>
<body><![CDATA[<p><b>    <center>Resumen</center></b></p>      <p align="justify"> Usando la dualidad entre la categoría cuyos objetos son las representaciones de cocientes Hausdorff de espacios de Cantor y la categoría cuyos objetos son el anillo de Cantor dotado con una relación de ligazón (esta dualidad es un caso particular de una extensión de la dualidad de Stone obtenida en 3), obtenemos representaciones algebraicas de los siguientes continuos: el intervalo unidad <i>I</i>=0,1, el círculo unitario S<sup>1</sup>, la curva triangular de Sierp&iacute;nski y el triodo simple. </p>      <p><b>Palabras clave:</b> Dualidad de Stone, cocientes de los espacios de Stone, continua, espacio de Cantor.</p>  <hr size=1>      <p>Texto completo disponible en <a href="pdf/rcm/v41s1/v41s1a08.pdf">PDF</a></p>  <hr size=1>      <p><b><font size="3">References</font></b></p>      <!-- ref --><p> 1 W. DEBSKI & J. MIODUSZEWSKI, Simple plane images of the Sierp&iacute;nski triangular curve are nowhere dense, <i>Colloquium Mathematicum</i>, <b>LIX</b> (1990), 125-140. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000019&pid=S0034-7426200700030000800001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 2 R. L. MOORE, Concerning simple continuous surves, <i>Trans. Amer. Math. Soc</i>. <b>21</b> (1920),    &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000020&pid=S0034-7426200700030000800002&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> 333-347. </p>      <!-- ref --><p> 3 S. M. SABOGAL, An extension of the Stone duality, <i>Acta Math. Hungar</i>. <b>88</b> (2000) 3, 205-211. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000022&pid=S0034-7426200700030000800003&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 4 S. M. SABOGAL, Autosemejanza en topolog&iacute;a y algunas extensiones de la dualidad de Stone, doctoral dissertation, Universidad Nacional de Colombia, Bogot&aacute;, 2000. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000023&pid=S0034-7426200700030000800004&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 5 W. SIERP&Iacute;NSKI, Sur une courbe dont tout point est un point de ramification, <i>Prace Mat.-Fiz</i>, <b>27</b> (1916), 77-86. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000024&pid=S0034-7426200700030000800005&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 6 M. H. STONE, The theory of representations for boolean algebras, <i>Trans. Amer. Math. Soc.</i> <b>40</b> (1936), 37-111. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000025&pid=S0034-7426200700030000800006&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p> 7 M. H. STONE, Applications of the theory of boolean rings to general topology, <i>Trans. Amer. Math. Soc.</i> <b>41</b> (1937), 375-481. &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000026&pid=S0034-7426200700030000800007&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --> ]]></body><back>
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