Groupes de Coxeter finis: involutions et cubes

  • Jean-Pierre Serre

    Collège de France, Paris, France
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Abstract

We review the properties of the finite Coxeter groups which are most useful for applications to cohomological invariants, namely their classes of involutions and their “cubes”, i.e., their abelian subgroups which are generated by reflections.

Résumé.

Pour l’étude des invariants cohomologiques des groupes de Coxeter finis, il est utile d’avoir une description détaillée de leurs involutions et des sous-groupes abéliens qu’elles engendrent.

Cite this article

Jean-Pierre Serre, Groupes de Coxeter finis: involutions et cubes. Enseign. Math. 68 (2022), no. 1/2, pp. 99–133

DOI 10.4171/LEM/1022