Localisation

Adresses

Aix-Marseille Université
Institut de Mathématiques de Marseille (I2M) - UMR 7373
Site Saint-Charles : 3 place Victor Hugo, Case 19, 13331 Marseille Cedex 3
Site Luminy : Campus de Luminy - Case 907 - 13288 Marseille Cedex 9

Les prochains séminaires de l'I2M

Événements passés

22 Sep

Real bimodal quadratic rational maps: moduli space and entropy (with K. Filom and S. Kang)

Kevin Pilgrim

22/09/2023    
11h00 - 12h00
Real bimodal quadratic rational maps: moduli space and entropy (with K. Filom and S. Kang)   Abstract: Bruin-van Strien and Kozlovski showed that for multimodal [...]
21 Sep

La bicatégorie cartésienne close des spans fins

21/09/2023    
11h00 - 12h30
Dans le modèle Rel de la logique linéaire, les types sont interprétés par des ensembles, et les preuves/programmes par des relations. Une idée naturelle pour [...]
21 Sep

Une généralisation de l'invariant de Kirk pour les sphères nouées à link-homotopie près

Dans cet exposé, je commencerai par présenter les surfaces nouées dans S^4 et donnerai quelques méthodes pour "voir" ces surfaces. J'introduirai notamment les diagrammes de [...]
19 Sep

Some results on classification of bistable transition fronts

In this talk, we will first show you a simple way to construct entire solutions by finite planar fronts. These entire solutions are generalized traveling [...]
19 Sep

Convolution of periodic multiplicative functions and the divisor problem

Marco Aymone

This is a continuation of my previous talk in Marseille. I will speak about a joint work with Maiti, Ramaré and Srivastav where we showed [...]
18 Sep

On Z_2 index and String Order of Gapped Ground States of 1+1 dim interacting Fermion Systems

In this talk, we explain our results on classification of gapped ground states of 1+1 dim interacting Fermion systems. In case of non-interacting Fermion systems [...]
14 Sep

Deux définitions alternatives des ω-catégories (et leurs généralisations homotopiques)

14/09/2023    
11h00 - 12h30
Nous donnerons deux définitions alternatives des ω-catégories. La première repose sur la catégorie Θ de Joyal et la deuxième sur le nerf de Street et [...]
14 Sep

Rational homotopy type of the moduli space of stable rational curves

In 2004, Manin asked whether the cohomology of the moduli space of stable rational curves with n marked points (= the Deligne-Mumford compactification of the [...]
12 Sep

Analysis of Coupled Atmosphere-Ocean Models

In this talk we consider various coupled atmposhere-ocean models as introduced by Lions, Temam and Wang.  We analyze in particular three circles of problems: coupling [...]
08 Sep

Un usurpateur pour le pseudo-Anosov d'Arnoux-Yoccoz

Thomas Schmidt

08/09/2023    
11h00 - 12h00
En 1981, Arnoux et Yoccoz ont donné les premiers exemples de pseudo-Anosov dont la dilatation est de degré impair. En 1985, D. Fried a déduit [...]
06 Juil

Surfaces dans R^4 et entrelacs

06/07/2023    
11h00 - 12h00
L'intersection (transverse) d'une surface plongée de façon lisse dans R4 avec un hyperplan R3 est une courbe de dimension 1. Quel type de courbe peut-on [...]
Introduction to the representation theory of Lie groups

Introduction to the representation theory of Lie groups

As the title says, I wanted to do an introduction to the representation theory of Lie groups. But I realized that this beautiful theory turns [...]
29 Juin

A geometric foundation for virtual knot theory

29/06/2023    
14h00 - 15h00
The theory of knots in R^3 has both a geometric model and a diagrammatic model. The geometric model views a knot as point in a [...]
29 Juin

Concurrent Realizability on Conjunctive Structures

This work aims at exploring the algebraic structure of concurrent processes and their behavior independently of a particular formalism used to define them. We propose [...]
29 Juin

Strategies as Resource Terms, and their Categorical Semantics

As shown by Tsukada and Ong, normal (extensional) simply-typed resource terms correspond to playsin Hyland-Ong games, quotiented by Melliès’ homotopy equivalence. Though inspiring, their proofis [...]
27 Juin

A nonlinear elliptic PDE from atmospheric science: well-posedness and regularity at cloud edge

To describe the atmosphere on a synoptic scale (the scale at which weather fronts are apparent on a weather map, for example) one may use [...]
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