<?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>S1409-24332015000200325</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Optimización de la oferta de cursos en instituciones educativas]]></article-title>
<article-title xml:lang="en"><![CDATA[Optimization of courses offer in educational institutions]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López-Bracho]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ochoa]]></surname>
<given-names><![CDATA[Angélica Iliana Granados]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fragoso]]></surname>
<given-names><![CDATA[Mirelle Hernández]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,rbl@correo.azc.uam.mx  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México D.F</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,angelica.grana2@outlook.com  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,mhdzf020986@gmail.com  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>México D.F</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2015</year>
</pub-date>
<volume>22</volume>
<numero>2</numero>
<fpage>325</fpage>
<lpage>339</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S1409-24332015000200325&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S1409-24332015000200325&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S1409-24332015000200325&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[ResumenEn el problema de programación de horarios de cursos, generalmente se asume que la asignación de asignaturas a los periodos lectivos es un dato de entrada del problema, que es definido por los responsables académicos. En este trabajo es presentada una metodología, que hace uso de programas lineales con variables enteras 0-1, para establecer la asignación de cursos a periodos lectivos, el cual toma en cuenta el grado de dificultad de cada asignatura y los requisitos académicos de éstas, con el objetivo de minimizar las diferencias de grado de dificultad entre los diferentes periodos académicos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[AbstractIn the problem of scheduling of courses, it is generally assumed that the allocation of subjects to teaching periods is an input of the problem, which is defined by the academic authorities. This paper presents a methodology that makes use of linear programs with 0-1 integer variables, to establish the assignment of subjects to teaching periods, which takes into account the degree of difficulty of each subject and academic requirements of these, with the objective of minimizing the differences in degree of difficulty between the various academic periods.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[programación entera]]></kwd>
<kwd lng="es"><![CDATA[horarios]]></kwd>
<kwd lng="es"><![CDATA[asignación]]></kwd>
<kwd lng="es"><![CDATA[optimización]]></kwd>
<kwd lng="en"><![CDATA[integer programming]]></kwd>
<kwd lng="en"><![CDATA[timetabling]]></kwd>
<kwd lng="en"><![CDATA[allocation]]></kwd>
<kwd lng="en"><![CDATA[optimization]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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