Quotients jacobiens d'applications polynomiales
نویسندگان
چکیده
منابع مشابه
Optimisation d'opérateurs arithmétiques matériels à base d'approximations polynomiales
RÉSUMÉ. Cet article présente une méthode pour l’optimisation d’opérateurs arithmétiques matériels dédiés à l’évaluation de fonctions en utilisant des polynômes d’approximation. La méthode, basée sur des outils récents, réduit la taille des coefficients des polynômes et des valeurs intermédiaires tout en bornant l’erreur totale (approximation et évaluation). Elle conduit à des opérateurs petits ...
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Ah, la recherche! Du temps perdu. Soit G le quotient du groupe libre a 26 g en era-teurs a; b; c; : : : ; z par les relations A = B, pour tout couple de mots (A; B) pouvant avoir la m^ eme prononciation en anglais. (Un groupe d eeni d'une mani ere analogue a et e consid er e dans Landsburg 1986].) Notre but est de d eterminer la structure du groupe G. Théorème. G est trivial. Démonstration. (No...
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The moduli spaceM0,n plays important roles in algebraic geometry and theoretical physics. Yet, some basic properties of M 0,n still remain open. For example, M0,n is rational and nearly toric (that is, it contains a toric variety as a Zariski open subset), but it is not a toric variety itself starting from dimension 2 (n ≥ 5). So, a basic question is: Can it be degenerated flatly to a projectiv...
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This article is motivated by the following local-to-global question: is every variety with tame quotient singularities globally the quotient of a smooth variety by a finite group? We show that this question has a positive answer for all quasi-projective varieties which are expressible as a quotient of a smooth variety by a split torus (e.g. simplicial toric varieties). Although simplicial toric...
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It is a well-known theorem of Deodhar that the Bruhat ordering of a Coxeter group is the conjunction of its projections onto quotients by maximal parabolic subgroups. Similarly, the Bruhat order is also the conjunction of a larger number of simpler quotients obtained by projecting onto two-sided (i.e., “double”) quotients by pairs of maximal parabolic subgroups. Each one-sided quotient may be r...
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ژورنال
عنوان ژورنال: Annales de l’institut Fourier
سال: 2003
ISSN: 0373-0956
DOI: 10.5802/aif.1948