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  • This session has been presented March 22, 2002.

Description

  • Speaker

    Jean-François Mestre - Université Paris VII

Au XIX-ieme siecle, Gauss avait remarqué que la moyenne arithmetico-géometrique (AGM) permet de calculer rapidement les integrales elliptiques . Nous montrerons comment un analogue p-adique fournit un algorithme efficace et simple à implémenter du calcul du nombre de points d'une courbe elliptique sur F_{2^n}, et nous decrirons un algorithme analogue dans le cas du genre 2.

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