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

02 Jun

Séminaire AA -- Sur quelques problèmes d'évolution non locaux

Anoumou Attiogbé (Univ. Gamal Abdel Nasser de Conakry (Guinée))

02 Jun

An homological analogue of the Baum-Connes conjecture with coefficients for Lie groups

Axel Gastaldi (I2M)

The Baum-Connes conjecture for Lie groups establishes a link between the tempered dual of a real Lie group and the unitary dual of its maximal [...]
02 Jun

On characteristic length for Activated random walk on the line.

Félix ROUVEYRE (Aix-Marseille Université)

The concept of self-organized criticality was introduced by Bak, Tang and Wiesenfeld to provide a framework for understanding the emergence, in various contexts, of systems [...]
04 Jun

Singularities admitting contracting automorphisms.

Kemo Morvan (Paris)

In this talk, we are interested in the group Aut(X,0) of automorphisms of the germ (X,0) of a complex analytic space. We show that Aut(X,0) [...]
05 Jun

Can irregularity produce entropy

Serge TROUBETZKOY (Institut mathématiques de Marseille)

05/06/2026    
11h00 - 12h00
How much dynamical complexity is forced by geometric irregularity? Recent work shows that many familiar forms of irregular behavior coexist with zero entropy. I will [...]
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Événements passés

29 May

Conjugaison dans les groupes de Röver-Nekrashevych

Matteo TAROCCHI (Université Paris-Saclay, Laboratoire de mathématiques d'Orsay)

29/05/2026    
11h00 - 12h00
Röver-Nekrashevych Groups V(G) are groups of almost automorphisms of regular rooted trees, and thus homeomorphisms of Cantor spaces, that are generated by a copy of [...]
28 May

Séminaire Chocola à Lyon

Brede, da Rocha Paiva ,van Gool (ÉNS Lyon)

Voir le site.
28 May

Isogeny problems and refined Humbert invariants

Eda Kirimli (University of Birmingham)

In this talk, we examine principally polarized superspecial abelian surfaces over finite fields through their corresponding refined Humbert invariants. We show that computing this invariant [...]
28 May

Déformations affines de cônes divisibles et espaces-temps affines

Antoine Ablondi (Montpellier)

Dans ses travaux, Mess a introduit une correspondance entre les déformations affines de sous-groupes Fuchsiens de SO(2,1) et certains espaces-temps Lorentziens plats. Par la suite, [...]
26 May

Spatial epidemic model with varying infectivity and waning immunity : Law of Large Numbers

Yao Armand KANGA (Aix-Marseille Université)

Classical epidemic models often use ordinary differential equations (ODEs), which assume implicitly exponential durations for infections, and often an abrupt loss of immunity, an unrealistic [...]
26 May

A trace Paley-Wiener theorem for GL(n, F)\GL(n, E)

Juliette Coutens (I2M)

This talk is related to the relative Langlands' program, which aims to extend the classical Langlands' program to spherical varieties. In the classical case, a [...]
26 May

From Hex to the disjoint separators problem in graphs

Florian Galliot (I2M)

Hex is a board game, where two players take turns placing red and blue stones respectively on a rhombus-shaped board with hexagonal cells, with the [...]
22 May

Compléter des colorations partielles de hom shifts

Benjamin HELLOUIN de MENIBUS (LISN, université Paris-Saclay)

22/05/2026    
11h00 - 12h00
On étudie les shifts ou espaces de pavages de type fini: des colorations de la grille régulière infinie qui évitent un ensemble fini de motifs [...]
21 May

Minimum and Maximum lambda-Terms

Adrienne Lancelot (Università di Bologna)

The study of program preorders leads to more structure than that of program equivalences. Is it actually interesting in the case of the uneffectful lambda-calculus? [...]
21 May

Une nouvelle approche de l'enlacement d'arrangements de droites.

Benoit Guerville-Balle (Université de Sassari)

Durant ma thèse, j'ai définit avec Artal et Florens, un invariant d'enlacement des arrangements de droites dans le plan projectif complexe. Cet invariant est une [...]
19 May

Conditional propagation of chaos for systems of interacting particles with simultaneous nearly-stable jumps

Elisa MARINI (Université Paris Dauphine)

We consider a system of $N$ interacting particles, described by SDEs driven by Poisson random measures, where the coefficients depend on the empirical measure of [...]
19 May

Sur la surjectivité de la paramétrisation locale de Genestier-Lafforgue

Raphaël Beuzart-Plessis (I2M-CNRS)

Genestier-Lafforgue et Fargues-Scholze ont construit une correspondance de Langlands locale semi-simple pour les groupes réductifs sur des corps locaux de caractéristique positive. Dans cet exposé, j'expliquerai comment, [...]
18 May

Séminaire de David Nerini

David Nérini (amU)

Conditional multivariate functional PCA for the reconstruction of temperature and salinity profiles partially sampled by deep-diving marine mammals Nadège Fonvieille, Christophe Guinet, Baptiste Picard, David Nerini [...]
11 May

Flow Matching for Imaging Inverse Problems

Ségolène Martin (TU Berlin)

We begin this talk with an introduction to generative modeling for image synthesis. Starting from discrete normalizing flows, we move to continuous normalizing flows and [...]
07 May

Quantitative Diagrammatic Reasoning for Probabilistic Processes

Ralph Sarkis (University College London)

Algebraic structures and equational reasoning are fundamental tools in programming semantics since very early work in the field. The study of probabilistic programs poses several [...]
Hypersurfaces réelles de Calabi–Yau construites par patchwork

Hypersurfaces réelles de Calabi–Yau construites par patchwork

Arthur Renaudineau (Université de Lille)

Comprendre la topologie des hypersurfaces réelles de degré fixé dans les espaces projectifs réels — et plus généralement dans un système linéaire — constitue un [...]
07 May

Atelier perles

Marusia Rebolledo (Université Clermont Auvergne)

Dans cet exposé, nous verrons comment faire de jolis colliers (sur les courbes elliptiques).Travail en collaboration avec Chris Wuthrich.https://arxiv.org/abs/2509.01816
05 May

Towards a geometrisation of Deligne cohomology

Marco Artusa (CIRM-I2M)

Deligne cohomology of a complex manifold Y is a hybrid object: it mixes Betti cohomology with the Hodge filtration on de Rham cohomology, producing a [...]
05 May
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