@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: a skos:ConceptScheme .
psr:-Z583TF31-7
  skos:exactMatch <https://fr.wikipedia.org/wiki/Classe_caract%C3%A9ristique>, <https://en.wikipedia.org/wiki/Characteristic_class> ;
  dc:created "2023-07-19"^^xsd:date ;
  skos:broader psr:-FN7C5N2G-Z ;
  skos:prefLabel "characteristic class"@en, "classe caractéristique"@fr ;
  skos:definition """In mathematics, a characteristic class is a way of associating to each principal bundle of <i>X</i> a cohomology class of <i>X</i>. The cohomology class measures the extent the bundle is "twisted" and whether it possesses sections. Characteristic classes are global invariants that measure the deviation of a local product structure from a global product structure. They are one of the unifying geometric concepts in algebraic topology, differential geometry, and algebraic geometry. 
<br/>(Wikipedia, The Free Encyclopedia, <a href="https://en.wikipedia.org/wiki/Characteristic_class">https://en.wikipedia.org/wiki/Characteristic_class</a>)"""@en, """Une classe caractéristique est un objet mathématique défini et étudié notamment en topologie algébrique et en K-théorie, afin de différencier les fibrés vectoriels. De telles classes sont aujourd'hui comprises comme des invariants cohomologiques. 
<br/>(Wikipedia, L'Encylopédie Libre, <a href="https://fr.wikipedia.org/wiki/Classe_caract%C3%A9ristique">https://fr.wikipedia.org/wiki/Classe_caract%C3%A9ristique</a>)"""@fr ;
  dc:modified "2023-07-19"^^xsd:date ;
  skos:inScheme psr: ;
  a skos:Concept .

psr:-FN7C5N2G-Z
  skos:prefLabel "topologie algébrique"@fr, "algebraic topology"@en ;
  a skos:Concept ;
  skos:narrower psr:-Z583TF31-7 .