Évènements

The Cremona group of rank N over the field K is the group of birational transformations of the projective N-space that are defined over K. [...]

Titre : Heat flow on Riemannian manifolds and curvature Résumé : The effect of curvature in the propagation of heat on a Riemannian manifold is [...]

 La fonction Zêta de Riemann est probablement l'un des objets les plus connu en Théorie Analytique des Nombres, puisqu'elle possède encore aujourd'hui son lot de [...]

Géométrie birationnelle des groupes algébriques en caractéristique p>0 (Première partie) Cet exposé portera sur l'étude des familles G ⟶ S de groupes algébriques paramétrées par [...]

In this talk, I will discuss how a general bilinear finite-dimensional closed quantum system with dispersed parameters can be steered between eigenstates. We show that, [...]

Cet exposé tourne autour de trois problèmes distincts mais fortement reliés. Tout d'abord, l'étude de la limite hydrodynamique de systèmes de particule soumises à des [...]

Réunion d'équipe permanents

A guiding problem in algebraic geometry is the classification of varieties. In dimension 1, the main invariant for their classification is the genus. Similarly, in [...]

En 1858, Hermann von Helmholtz, alors professeur de physiologie à l'université de Heidelberg, publie dans le journal de Crelle un article tout à fait novateur [...]

L'analyse topologique des données (Topological Data Analysis : TDA) est un domaine à l’intersection de la statistique et de la topologie algébrique qui a émergé [...]

What happens if we want to study the convergence of discontinuous real-valued stochastic processes, which is often the case for modelling purposes? For example, think [...]

We introduce a novel methodology for testing uniformity on the unit hypersphere $S^{d−1}$, based on maximal projections and recent developments in Stein’s method. The first [...]

The space of (local) symmetries of a given geometric structure has the natural structure of a Lie (pseudo)group. Conversely, geometric structures admitting a local model [...]

Finite-time stabilization of linear systems using either additive or multiplicative controls is studied. A necessary condition is formulated in terms of a weak observability condition [...]

Let $X$ be a minimal complex projective variety. Over the past years, many similar inequalities between the Chern classes of $X$ have been obtained. Moreover, [...]

In the derivation of the wave kinetic equation coming from the Schrödinger equation, a key feature is the invariance of the Schrödinger equation under the [...]

It is well understood that positivity or negativity properties of canonical line bundle encode a significant amount of geometric data about the underlying projective variety. [...]

First, we introduce c`adl`ag measure-valued processes, with biological motivations. We focus on the construction with Poisson point measures and the useful martingale properties it entails. [...]

Pas de séminaire ce jeudi, car il y a la matinée de lancement de la fédération de recherche MaGE. Au programme, en amphi 3 : [...]

The main objective of this work is to study the stability of a linear one-dimensional thermoelastic Bresse system in a bounded domain, where the coupling [...]

It is well-known that not every variety in positive characteristic can be lifted to characteristic 0. However, it is conjectured that lifts exist for varieties [...]

Industry 4.0, along with advancements in sensing and communication, has enabled the large-scale collection of streaming data, creating unique opportunities for system modeling and monitoring. [...]

Dans le cadre de coefficients réguliers et sous une hypothèse de contrôle géométrique que je rappellerai, l’une des méthodes les plus modernes pour démontrer l’observabilité [...]

Les systèmes de Prony sont apparus dans de nombreux articles scientifiques issus de différents domaines sans que leur résolution ne devienne un classique en calcul [...]