description de formes schizogoniques de babesia bigemina. comparaison avec des formes identiques, decrites par e. dschunkowsky, 1937, sous le nom lushia bovis

Description de formes schizogoniques de Babesia bigemina. Comparaison avec des formes identiques, decrites par E. Dschunkowsky, 1937, sous le nom Lushia bovis

Traitement d’images multivariées avec l’arbre des formes

Résumé The Tree of Shapes (ToS) is a morphological tree that provides an high-level hierarchical, self-dual and contrast invariant representation of the image suitable for many image processing tasks.When dealing with color images, one cannot use the Tree of Shapes because its definition is ill-formed on multivariate data. Common workarounds such as marginal processing, or imposing a total orde...

Moyennes de fonctions arithmétiques de formes binaires

Extending classical results of Nair and Tenenbaum, we provide general, sharp upper bounds for sums of the type ∑ u<m u+v x<n x+y F (Q1(m, n), . . . , Qk(m, n)) where x, y, u, v have comparable logarithms, F belongs to a class defined by a weak form of sub-multiplicativity, and the Qj are arbitrary binary forms. A specific feature of the results is that the bounds are uniform within the F -class...

Theoreme De Donsker Et Formes De Dirichlet

We use the language of errors to handle local Dirichlet forms with squared field operator (cf [2]). Let us consider, under the hypotheses of Donsker theorem, a random walk converging weakly to a Brownian motion. If, in addition, the random walk is supposed to be erroneous, the convergence occurs in the sense of Dirichlet forms and induces the Ornstein-Uhlenbeck structure on the Wiener space. Th...

Formes quadratiques de discriminants emboîtés

Résumé. Les formes quadratiques binaires ont été initialement considérées par Fermat, Lagrange, Legendre. Puis Gauss, dans les Disquisitiones Arithmeticae publiées en 1801, est le premier à leur donner un développement significatif, avec en particulier la loi de composition. Leurs applications pratiques sont multiples. Elles fournissent une manière explicite de manipuler des idéaux de corps qua...

Phénomènes de symétrie dans des formes linéaires en polyzêtas

— We give two generalizations, in arbitrary depth, of the symmetry phenomenon used by Ball-Rivoal to prove that infinitely many values of Riemann ζ function at odd integers are irrational. These generalizations concern multiple series of hypergeometric type, which can be written as linear forms in some specific multiple zeta values. The proof makes use of the regularization procedure for multip...