<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>6975</termId><termName>Grafos, Teoría de</termName><termType>PT</termType><termLanguage>es</termLanguage><termVocabulary>INDICES DE MATERIAS</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>Grafos, Teoría de</termSortkey><termNote label="Source"><![CDATA[ <p>CDU: 519.17</p> ]]></termNote><termCreatedDate>Grafos, Teoría de</termCreatedDate><relation><relationType>BT</relationType><termId>6925</termId><termName>Área 07. Ecuaciones</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7433</termId><termName>Hipergrafos</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7434</termId><termName>Mapas - Coloración</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7435</termId><termName>Matroides</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7436</termId><termName>Petri, Redes de</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7437</termId><termName>Ramsey, Teoría de</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7438</termId><termName>Representaciones de grafos</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>6976</termId><termName>Análisis combinatorio</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>6948</termId><termName>Topología</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7430</termId><termName>Análisis de redes (Planificación)</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7431</termId><termName>Árboles (Teoría de grafos)</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7432</termId><termName>Grafo cerrado, Teorema del</termName><termType>PT</termType></relation></term>  </Zthes>