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	mads.xsd"><authority><topic authority="http://www.serbi.ula.ve/tematres/vocab/">VARIEDADES (MATEMÁTICAS)</topic></authority><related type="narrower"><topic>CATASTROFES (MATEMATICAS)</topic></related><related type="narrower"><topic>CIRUGIA (TOPOLOGIA)</topic></related><related type="narrower"><topic>GEOMETRÍA ESPECTRAL</topic></related><related type="narrower"><topic>GRUPOS DE TRANSFORMACIONES TOPOLOGICAS</topic></related><related type="narrower"><topic>SUBVARIEDADES CR</topic></related><related type="narrower"><topic>TORO (GEOMETRIA)</topic></related><related type="broader"><topic>GEOMETRIA DIFERENCIAL</topic></related><related type="broader"><topic>TOPOLOGÍA</topic></related></mads>