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

<http://www.irandoc.acir/onto/irandoc/math0006728>
  skos:prefLabel "معادله دیفرانسیل جزئی سهموی"@fa, "parabolic partial differential equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/math0006741> .

<http://www.irandoc.acir/onto/irandoc/math0006741>
  skos:narrower <http://www.irandoc.acir/onto/irandoc/math0006728>, <http://www.irandoc.acir/onto/irandoc/math0006740>, <http://www.irandoc.acir/onto/irandoc/math0006727> ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/math0006761> ;
  skos:prefLabel "معادله دیفرانسیل جزئی مرتبه دوم خطی"@fa, "linear second order partial differential equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept .

<http://www.irandoc.acir/onto/irandoc/math0006761>
  skos:prefLabel "معادله دیفرانسیل جزئی مرتبه دوم"@fa, "second-order partial differential equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:narrower <http://www.irandoc.acir/onto/irandoc/math0006741> .

<http://www.irandoc.acir/onto/irandoc/math0006727>
  skos:prefLabel "معادله دیفرانسیل جزئی بیضوی"@fa, "elliptic partial differential equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/math0006741> .

<http://www.irandoc.acir/onto/irandoc/math0006740>
  skos:prefLabel "معادله دیفرانسیل جزئی هذلولوی"@fa, "hyperbolic partial differential equation"@en ;
  a <http://www.irandoc.ac.ir/onto/irandoc-meta/Concept>, skos:Concept ;
  skos:broader <http://www.irandoc.acir/onto/irandoc/math0006741> .