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

<http://www.irandoc.acir/onto/irandoc/math0006620>
  skos:prefLabel "معادله دیفرانسیل جزئی غیر خطی"@fa, "nonlinear partial differential equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/math0006615> .

<http://www.irandoc.acir/onto/irandoc/math0006695>
  skos:prefLabel "معادله دیفرانسیل جزئی مرتبه بالاتر"@fa, "higher-order partial differential equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:related <http://www.irandoc.acir/onto/irandoc/math0006615> .

<http://www.irandoc.acir/onto/irandoc/math0006615>
  skos:related <http://www.irandoc.acir/onto/irandoc/math0006695> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/math0006620> ;
  skos:prefLabel "معادله استوز-مانسفیلد-کلارکسن"@fa, "estevez–mansfield–clarkson equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .