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

14 Sep

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

Félix Loubaton (Labo J. Dieudonné, Nice)

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

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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

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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 Jul

Surfaces dans R^4 et entrelacs

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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

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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 Jun

A geometric foundation for virtual knot theory

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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 Jun

Concurrent Realizability on Conjunctive Structures

Étienne Miquey (I2M)

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 Jun

Strategies as Resource Terms, and their Categorical Semantics

Lison Blondeau-Patissier (I2M & LIS)

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 Jun

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

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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 [...]
23 Jun

Titre à préciser

Natalia Jurga (...)

23/06/2023    
11h00 - 12h00
TBA. Séminaire RAUZY
22 Jun

Normalizing renormalization (2)

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Renormalization is one of the most powerful conceptual frameworks in theoretical physics. Renormalization was first introduced as a systematic tool for subtracting ultraviolet divergences in [...]
22 Jun

Pascal, Fermat, le problème des partis et la naissance du concept d’espérance mathématique

Pierre Mathieu (I2M)

22/06/2023    
16h00 - 17h00
Il sera question de la correspondance échangée entre Fermat et Pascal en 1654, et de bien d'autres choses encore.
22 Jun

Simply typed β-convertibility is TOWER-complete even for safe λ-terms

Lê Thành Dũng (Tito) Nguyễn (ENS Lyon)

We consider the following decision problem: given two simply typed λ-terms, are they β-convertible? Equivalently, do they have the same normal form? It is famously [...]
22 Jun

Aspects métriques et spectraux des courbes planes aléatoires

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Résumé : Une courbe plane (complexe) est le lieu zéro dans CP2 d’un polynôme complexe homogène en trois variables. Toute courbe plane est munie d’une [...]
21 Jun

Journée Systèmes Dynamiques Marseille-Avignon 2023 : dynamique symbolique

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Marie-Pierre Béal a dû annuler sa venue. 9h45 : Ilkka Törmä (Université de Turku, Finlande) : Generic limit sets of cellular automata: structure and applications [...]
20 Jun

Dynamics of Ostrowski skew-product: Limit laws and Hausdorff dimensions

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We discuss dynamical and multifractal aspects of the Ostrowski map, which is given by the skew-product extension of continued fraction transformation. We plan to outline [...]
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