## Histoire d'une chaîne déductive: lien entre le signe de $f '$ et les variations de $f$

Type:
Site:
Date:
28/02/2017 - 16:00 - 18:00
Salle:
3B 075
Orateur:
CHORLAY Renaud
Localisation:
UMR 7219
Localisation:
France
Document(s):

## Intégration d'une fonction - intégration d'une tradition étrangère: L'analyse en Chine au 19e siècle

Type:
Site:
Date:
21/02/2017 - 16:00 - 18:00
Salle:
3B 075
Orateur:
BREARD Andrea
Localisation:
Université Lille 1
Localisation:
France
Document(s):

## L’analyse comme méthode dans les mathématiques grecques anciennes

Type:
Site:
Date:
31/01/2017 - 16:00 - 18:00
Salle:
3B 075
Orateur:
VITRAC Bernard
Localisation:
UMR 8210
Localisation:
France
Document(s):

## Homogenization of a 1D pursuit law with delay

Type:
Site:
Date:
14/12/2016 - 11:00 - 12:00
Salle:
4B110
Orateur:
FIROZALY Jérémy
Localisation:
France
Résumé:

We consider a one dimensional pursuit law with delay which is derived from traffic flow modelling. It takes the form of an infinite system of first order coupled delayed equations. Each equation describes the motion of a driver who interacts with the preceding one, taking into account his reaction time. We derive a macroscopic model by an homogenization process for reaction times that are below an explicit threshold. The key idea is to prove a strict comparison principle for the infinite system.

## Skorokhod embedding for Lévy processes

Type:
Site:
Date:
08/12/2016 - 14:00
Salle:
B214, Bâtiment Coriolis
Orateur:
DÖRING Leif
Localisation:
Université de Mannheim
Localisation:
Allemagne

## BARANOV Anton

Date:
Sam, 01/10/2016 - Sam, 31/12/2016
Site:
Nom:
BARANOV
Prénom:
Anton
Origine:
Université d'État de Saint-Pétersbourg
Origine:
Russie
Thème:
Analyse
Invitant:
ABAKOUMOV Evgueni

## TBA

Type:
Site:
Date:
24/11/2016 - 14:00
Salle:
Salle de séminaire du CERMICS, B214, Bâtiment Coriolis
Orateur:
ELIE Romuald

## Spectral function theory and approximation problems

Type:
Type:
Site:
Date:
08/12/2016 - 14:00 - 15:00
Salle:
4B05R
Orateur:
ABAKOUMOV Evgueni

## PDE methods for statistical physics

Type:
Site:
Date:
09/11/2016 - 16:00 - 17:00
Salle:
B211, bâtiment Coriolis
Orateur:
ROUSSEL Julien
Localisation:
ENPC
Localisation:
France
Résumé:

The Langevin Dynamics and the Overdamped Langevin dynamics are two widely used stochastic models which describe systems at a microscopic level. In a first part I introduce these dynamics and how macroscopic properties are deduced from statistics on the trajectories. Then I define the generator of such a stochastic differential equation (SDE), which is a differential operator, and show how its properties can be linked to the speed of convergence of the empirical averages. Finally I focus on the Langevin dynamics and explain what is the hypocoercivity. I may have time to speak about Galerkin methods for hypocoercive problems.

## UTEV Sergey

Date:
Dim, 29/05/2016 - Ven, 03/06/2016
Site:
Nom:
UTEV
Prénom:
Sergey
Origine:
Royaume-Uni
Thème:
Collaboration scientique
Invitant:
MERLEVÈDE Florence