Le groupe fondamental de certains espace
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Guy Rousseau
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Article
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1990
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Springer
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English
β 566 KB
The affine Weyl group W~ of an irreducible root system of rank n acts on the complexification b of a real space of dimension n via the usual (affine) action on the imaginary part and the action through the finite Weyl group on the real part. This group acts freely on the complement b' of some comple