<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/schema/zthes-1.0.dtd">  <Zthes><term><termId>6958</termId><termName>Funciones de variables reales</termName><termType>PT</termType><termLanguage>es</termLanguage><termVocabulary>INDICES DE MATERIAS</termVocabulary>	<termStatus>active</termStatus>	<termApproval>approved</termApproval>	<termSortkey>Funciones de variables reales</termSortkey><termNote label="Source"><![CDATA[ <p>CDU: 517.51</p> ]]></termNote><termCreatedDate>Funciones de variables reales</termCreatedDate><relation><relationType>BT</relationType><termId>6924</termId><termName>Área 06. Teoría de funciones</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7325</termId><termName>Funciones convexas</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7326</termId><termName>Funciones de concentración</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7046</termId><termName>Funciones de conjunto</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>6962</termId><termName>Funciones de variables complejas</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7327</termId><termName>Funciones de varias variables reales</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7328</termId><termName>Funciones monótonas</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7329</termId><termName>Funciones subarmónicas</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7330</termId><termName>Funciones vectoriales</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>7203</termId><termName>Jacobianas</termName><termType>PT</termType></relation></term>  </Zthes>