no. 2
Quiver varieties and Weyl group actions
Annales de l'Institut Fourier, Tome 50 (2000) no. 2, pp. 461-489.

Il est connu que le groupe de Weyl opère naturellement sur la cohomologie d’une variété de Nakajima. Ici ce fait est établi en utilisant la méthode de la cohomologie d’intersection, en analogie avec la définition des représentations de Springer.

The cohomology of Nakajima’s varieties is known to carry a natural Weyl group action. Here this fact is established using the method of intersection cohomology, in analogy with the definition of Springer’s representations.

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     author = {Lusztig, George},
     title = {Quiver varieties and {Weyl} group actions},
     journal = {Annales de l'Institut Fourier},
     pages = {461--489},
     publisher = {Association des Annales de l{\textquoteright}institut Fourier},
     volume = {50},
     number = {2},
     year = {2000},
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Lusztig, George. Quiver varieties and Weyl group actions. Annales de l'Institut Fourier, Tome 50 (2000) no. 2, pp. 461-489. doi : 10.5802/aif.1762. http://archive.numdam.org/articles/10.5802/aif.1762/

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