In recent years, strata of Abelian differentials have become central objects of study in Algebraic Geometry. Their rich structure can be approached from several perspectives, including combinatorics, Teichmüller …

In discrete geometry, we study configurations of points under certain conditions. We are mostly interested in extremal configurations: What is the densest packing of spheres in R^n? What is the minimum number of …

 Le système de numération en base rationnelle p/q a été introduit en 2008 par Akiyama, Frougny et Sakarovitch. Pour deux entiers p>q copremiers, tout entier n possède une unique expansion en base p/q, sous la …

The purely magnetic ansatz yields a family of spherically symmetric solutions to the SU(2) Yang-Mills equations parametrized by a single scalar function $W$. The equation on $W$ is a semilinear wave equation …

A dynamical rare event is considered, e.g. using a Stochastic Differential Equation with small noise conditioned to hit set B before an attractor set A. Such rare events can be sampled using a population Monte Carlo …

Dans cet exposé, nous présentons deux types de problèmes inverses : un problème d'identification de paramètres en tomographie optique diffuse appliqué à l'imagerie cérébrale, ainsi qu'un problème de localisation de …

Recently, one-dimensional Poincaré inequalities have been applied in Global Sensitivity Analysis (GSA) to provide upper bounds and chaos-type approximations of Sobol indices. As a new contribution, we have developed …

Lien direct Microsoft Teams Numéro de réunion : 320 207 694 971 29 Code secret : XW9pq34H Composition du jury M. Rémi FLAMARY, Rapporteur, École Polytechnique M. Jean-Francois AUJOL, Rapporteur, Universite Bordeaux …