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Jeudi 14 Janvier
| Heure: |
10:00 - 11:30 |
| Lieu: |
Exposé en ligne |
| Résumé: |
Topologie algébrique - A model for homotopy E?cooperads - |
| Description: |
Lorenzo Guerra
ing, homotopies are incorporated into the associativity conditions of operadicwe describe a notion of Segal Hopf cooperads in their strict and homotopy verEalgebras. Their interest lies, at least in part,E-In the first part of the talk, that will (mostly) have an expository flavour, I recall Mandell’s theorem, and I will state some of our results. In the second and I will tentatively provide an outline of some proofs. |
Vendredi 15 Janvier
| Heure: |
10:30 - 11:30 |
| Lieu: |
Exposé en distanciel |
| Résumé: |
Géométrie Arithmétique et Motivique - The p-part of BSD for rational elliptic curves at Eisenstein primes - |
| Description: |
Giada GrossiLien researchseminars.org |
| Heure: |
14:00 - 15:00 |
| Lieu: |
https://bbb.math.univ-paris13.fr/b/emm-mwh-ajj |
| Résumé: |
Modélisation et Calcul Scientifique - Autour de la détection de perturbations par imagerie - |
| Description: |
Jérémi Heleine
Lien pour assister au séminaire : https://bbb.math.univ-paris13.fr/b/emm-mwh-ajj |
| Heure: |
15:30 - 16:30 |
| Lieu: |
Salle B405, bâtiment B, LAGA, Institut Galilée, Université Paris 13 |
| Résumé: |
PM - EDP - Propagation of chaos and corrections to mean field for classical interacting particles - |
| Description: |
Mitia DuerinckxWe consider a system of classical particles, interacting via a smooth,
long-range potential, in the mean-field regime, and we analyze the
propagation of chaos in form of sharp estimates on many-particle
correlation functions. While approaches based on the BBGKY hierarchy are
doomed by uncontrolled losses of derivatives, we propose a novel
non-hierarchical approach that relies on discrete stochastic calculus
with respect to initial data. This result allows to rigorously truncate
the BBGKY hierarchy to an arbitrary precision on the mean-field
timescale, thus justifying the so-called Bogolyubov corrections to mean
field. As a by-product, we also discuss the justification of the
Lenard-Balescu relaxation for a spatially homogeneous system. |
| Heure: |
15:30 - 16:30 |
| Lieu: |
Salle B405, bâtiment B, LAGA, Institut Galilée, Université Paris 13 |
| Résumé: |
Équations aux Dérivées Partielles non-linéaires - Propagation of chaos and corrections to mean field for classical interacting particles - |
| Description: |
Mitia DuerinckxWe consider a system of classical particles, interacting via a smooth,
long-range potential, in the mean-field regime, and we analyze the
propagation of chaos in form of sharp estimates on many-particle
correlation functions. While approaches based on the BBGKY hierarchy are
doomed by uncontrolled losses of derivatives, we propose a novel
non-hierarchical approach that relies on discrete stochastic calculus
with respect to initial data. This result allows to rigorously truncate
the BBGKY hierarchy to an arbitrary precision on the mean-field
timescale, thus justifying the so-called Bogolyubov corrections to mean
field. As a by-product, we also discuss the justification of the
Lenard-Balescu relaxation for a spatially homogeneous system. |
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