Unfoldings in Knot Theory.
Considérons les variétés de “-faisceaux elliptiques” introduites par Laumon, Rapoport et Stuhler, définies sur un corps de fonctions d’une variable sur un corps fini, où est une algèbre de division de dimension sur . Nous montrons que ces variétés admettent, en une place de où est un corps gauche d’invariant , une uniformisation rigide-analytique par l’espace de Drinfeld , ou par les revêtements de (selon la structure de niveau). Ce résultat constitue l’analogue du théorème...
We present an approach to the uniformization of certain Shimura curves by means of automorphic functions, obtained by integration of non-linear differential equations. The method takes as its starting point a differential construction of the modular j-function, first worked out by R. Dedekind in 1877, and makes use of a differential operator of the third order, introduced by H. A. Schwarz in 1873.
We provide an asymptotic estimate for the number of rational points of bounded height on a non-singular conic over ℚ. The estimate is uniform in the coefficients of the underlying quadratic form.
We prove that for any ring of Krull dimension not greater than 1 and , the group acts transitively on . In particular, we obtain that for any ring with Krull dimension not greater than 1, all finitely generated stably free modules over are free. All the obtained results are proved constructively.