Estimates of convolutions of certain number-theoretic error terms.
In the problem of (simultaneous) Diophantine approximation in (in the spirit of Hurwitz’s theorem), lower bounds for the critical determinant of the special three-dimensional body play an important role; see [1], [6]. This article deals with estimates from below for the critical determinant of more general star bodies where is any positive constant. These are obtained by inscribing into either a double cone, or an ellipsoid, or a double paraboloid, depending on the size of .
Pour les formes automorphes cuspidales sur les corps de fonctions et pour les formes automorphes cuspidales cohomologiques sur les corps de nombres, on donne des estimées pour les valuations -adiques des valeurs propres des opérateurs de Hecke. Dans le cas des corps de nombres, ces estimées correspondent aux estimées de Katz-Mazur par les conjectures de Langlands.
Pseudorandom binary sequences are required in stream ciphers and other applications of modern communication systems. In the first case it is essential that the sequences be unpredictable. The linear complexity of a sequence is the amount of it required to define the remainder. This work addresses the problem of the analysis and computation of the linear complexity of certain pseudorandom binary sequences. Finally we conclude some characteristics of the nonlinear function that produces the sequences...
A positive integer n is called E-symmetric if there exists a positive integer m such that |m-n| = (ϕ(m),ϕ(n)), and n is called E-asymmetric if it is not E-symmetric. We show that there are infinitely many E-symmetric and E-asymmetric primes.
In this paper we study the étale cohomology groups associated to abelian varieties. We obtain necessary and sufficient conditions for an abelian variety to have semistable reduction (or purely additive reduction which becomes semistable over a quadratic extension) in terms of the action of the absolute inertia group on the étale cohomology groups with finite coefficients.
Carlitz a défini pour les corps de fonctions l’analogue du réel et Goss l’analogue des fonctions de Dirichlet. Nous prouvons dans un cas particulier qu’il existe des valeurs entières et des caractères pour lesquels peut être rationnel, algébrique ou bien transcendant.