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Annulation du groupe des $\ell$-classes généralisées d'une extension abélienne réelle de degré premier à $\ell$
Let ℓ be an odd prime number. Let K be a real abelian extension of Q with a degree prime to ℓ and let G be the Galois group of K/Q; Let ϕ (ϕ≠1) be an irreducible ℓ-adic character of K. Let M be the maximal abelian ℓ-extension of K …