@prefix psr: <http://data.loterre.fr/ark:/67375/PSR> .
@prefix skos: <http://www.w3.org/2004/02/skos/core#> .

psr: a skos:ConceptScheme .
psr:-CBZC2FKQ-5
  skos:definition """En mathématiques, et plus particulièrement en topologie algébrique, les groupes d'homotopie sont des invariants qui généralisent la notion de groupe fondamental aux dimensions supérieures. 
<br/>(Wikipedia, L'Encylopédie Libre, <a href="https://fr.wikipedia.org/wiki/Groupe_d%27homotopie">https://fr.wikipedia.org/wiki/Groupe_d%27homotopie</a>)"""@fr, """In mathematics, homotopy groups are used in algebraic topology to classify topological spaces. The first and simplest homotopy group is the fundamental group, denoted <span class="mwe-math-element"><span class="mwe-math-mathml-inline mwe-math-mathml-a11y" style="display: none;"><math xmlns="http://www.w3.org/1998/Math/MathML" alttext="{\\\\displaystyle \\\\pi _{1}(X),}">
         <semantics>
         <mrow class="MJX-TeXAtom-ORD">
         <mstyle displaystyle="true" scriptlevel="0">
         <msub>
         <mi>π<!-- π --></mi>
         <mrow class="MJX-TeXAtom-ORD">
         <mn>1</mn>
         </mrow>
         </msub>
         <mo stretchy="false">(</mo>
         <mi>X</mi>
         <mo stretchy="false">)</mo>
         <mo>,</mo>
         </mstyle>
         </mrow>
         <annotation encoding="application/x-tex">{\\\\displaystyle \\\\pi _{1}(X),}</annotation>
         </semantics>
         </math></span><img src="https://wikimedia.org/api/rest_v1/media/math/render/svg/b7de848ef6108d2b8e66c658e9990b4eabd16ec0" class="mwe-math-fallback-image-inline mw-invert" aria-hidden="true" style="vertical-align: -0.838ex; width:6.815ex; height:2.843ex;" alt="{\\\\displaystyle \\\\pi _{1}(X),}"></span> which records information about loops in a space. Intuitively, homotopy groups record information about the basic shape, or holes, of a topological space. 
<br/>(Wikipedia, The Free Encyclopedia, <a href="https://en.wikipedia.org/wiki/Homotopy_group">https://en.wikipedia.org/wiki/Homotopy_group</a>)"""@en ;
  a skos:Concept ;
  skos:inScheme psr: ;
  skos:broader psr:-FN7C5N2G-Z ;
  skos:prefLabel "homotopy group"@en, "groupe d'homotopie"@fr ;
  skos:exactMatch <https://fr.wikipedia.org/wiki/Groupe_d%27homotopie>, <https://en.wikipedia.org/wiki/Homotopy_group> .

psr:-FN7C5N2G-Z
  skos:prefLabel "topologie algébrique"@fr, "algebraic topology"@en ;
  a skos:Concept ;
  skos:narrower psr:-CBZC2FKQ-5 .