@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

<http://astrothesaurus.org/uat/1215>
  skos:related <http://astrothesaurus.org/uat/341> ;
  skos:altLabel "Perturbation theory"@en ;
  skos:broader <http://astrothesaurus.org/uat/211>, <http://astrothesaurus.org/uat/38> ;
  skos:prefLabel "Perturbation methods"@en ;
  a skos:Concept .

<http://astrothesaurus.org/uat/38>
  skos:prefLabel "Analytical mathematics"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/1215> .

<http://astrothesaurus.org/uat/341>
  skos:prefLabel "Cosmological perturbation theory"@en ;
  a skos:Concept ;
  skos:related <http://astrothesaurus.org/uat/1215> .

<http://astrothesaurus.org/uat/211>
  skos:prefLabel "Celestial mechanics"@en ;
  a skos:Concept ;
  skos:narrower <http://astrothesaurus.org/uat/1215> .