@prefix psr: <http://data.loterre.fr/ark:/67375/PSR> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .
@prefix dc: <http://purl.org/dc/terms/> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

psr:-HT4QK75C-T
  skos:prefLabel "surface de Riemann"@fr, "Riemann surface"@en ;
  a skos:Concept ;
  skos:narrower psr:-C4JVNML5-C .

psr:-VX20K4H9-G
  skos:prefLabel "hyperbolic geometry"@en, "géométrie hyperbolique"@fr ;
  a skos:Concept ;
  skos:narrower psr:-C4JVNML5-C .

psr: a skos:ConceptScheme .
psr:-XQMHP4R3-R
  skos:prefLabel "surface de Macbeath"@fr, "Macbeath surface"@en ;
  a skos:Concept ;
  skos:broader psr:-C4JVNML5-C .

psr:-C4JVNML5-C
  a skos:Concept ;
  skos:prefLabel "surface de Hurwitz"@fr, "Hurwitz surface"@en ;
  skos:broader psr:-HT4QK75C-T, psr:-VX20K4H9-G, psr:-TX92VB3N-7 ;
  skos:inScheme psr: ;
  skos:narrower psr:-XQMHP4R3-R ;
  dc:modified "2023-07-21"^^xsd:date ;
  skos:definition """In Riemann surface theory and hyperbolic geometry, a Hurwitz surface, named after Adolf Hurwitz, is a compact Riemann surface with precisely 84(<i>g</i> − 1) automorphisms, where <i>g</i> is the genus of the surface. This number is maximal by virtue of Hurwitz's theorem on automorphisms (Hurwitz 1893). They are also referred to as Hurwitz curves, interpreting them as complex algebraic curves (complex dimension 1 = real dimension 2). 
<br/>(Wikipedia, The Free Encyclopedia, <a href="https://en.wikipedia.org/wiki/Hurwitz_surface">https://en.wikipedia.org/wiki/Hurwitz_surface</a>)"""@en ;
  dc:created "2023-07-21"^^xsd:date ;
  skos:exactMatch <https://en.wikipedia.org/wiki/Hurwitz_surface> .

psr:-TX92VB3N-7
  skos:prefLabel "differential geometry of surfaces"@en, "géométrie différentielle des surfaces"@fr ;
  a skos:Concept ;
  skos:narrower psr:-C4JVNML5-C .