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

<http://www.irandoc.acir/onto/irandoc/math0006503>
  skos:prefLabel "مسئله ارتعاش"@fa, "vibration problem"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/math0007002> .

<http://www.irandoc.acir/onto/irandoc/math0007003>
  skos:prefLabel "معادله دیفرانسیل معمولی همگن"@fa, "homogeneous ordinary differential equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/math0007002> .

<http://www.irandoc.acir/onto/irandoc/math0007002>
  skos:related <http://www.irandoc.acir/onto/irandoc/math0007001>, <http://www.irandoc.acir/onto/irandoc/math0006503> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/math0007003> ;
  skos:prefLabel "معادله همگن با ضرایب ثابت"@fa, "homogeneous equation with constant coefficients"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/math0007001>
  skos:prefLabel "معادله دیفرانسیل خطی همگن"@fa, "homogeneous linear differential equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/math0007002> .