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

22 Sep

Provably Efficient Supervised Learning Algorithms for Non-i.i.d. and Structured Data

Luc Brogat-Motte

This talk will present recent contributions and ongoing directions in supervised learning for non-i.i.d. and structured data. It will present algorithms that are both efficient [...]
25 Sep

Surfaces transverses à un flot

Théo Marty

25/09/2025    
11h00 - 12h00
Fried a classifié les sections globales d'un flot (surface compacte transverse qui intersecte toutes les orbites du flot) dans les années 1980. Ces surfaces ont [...]
25 Sep

Linearization via Rewriting

Federico Olimpieri

We introduce the structural resource λ-calculus, a new formalism inwhich strongly normalizing terms of the λ-calculus can naturally berepresented, and at the same time any [...]
26 Sep
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Événements passés

19 Sep

Introduction to random groups and their properties

Emily CLEMENT

19/09/2025    
11h00 - 12h00
In the study of random groups, as pioneered by Gromov en 1996, one considers the properties of randomly chosen finitely presented groups <S|R>, generated by [...]
18 Sep

SL(2,C)-representations of 2-torsion homology spheres, and applications to the Kauffman skein module

Raphaël Zentner

18/09/2025    
11h00 - 12h00
In recent joined work with Sudipta Ghosh and Steven Sivek we prove that any rational homology 3-sphere whose first homology group is 2-torsion, and which [...]
16 Sep

Convergence et TCL pour un système de réactions chimiques multi-échelle.

Baptiste HUGUET

Résumé : Le réseau de régulation génique modélise l'ensemble des réactions biochimiques entre les différentes espèces (protéines, ARNm,…) présentes au sein d'une cellule. Une approche [...]
16 Sep

Wall-crossing, GGP, and Artin Formalism

Kazim Buyukboduk

The celebrated BDP formula evaluates Rankin–Selberg p-adic L-functions at points outside their interpolation range in terms of Generalised Heegner cycles (a phenomenon referred to as wall-crossing). [...]
16 Sep

Spreading Properties of a City-Road Reaction-Diffusion Model on One-Dimensional Lattice

ZHAO Min

We present a City-Road reaction-diffusion model on the one-dimensional lattice, where ``cities'' are interconnected by a transportation network such as roads, railways, or rivers. The [...]
12 Sep
11 Sep

Action de sl(2) sur les mousses et les homologies de Khovanov--Rozansky.

Louis-Hadrien Robert

11/09/2025    
11h00 - 12h00
Dans cet exposé, après avoir rappelé les motivations et la définition des homologies de Khovanov--Rozansky, j'expliquerai en quoi l'approche mousseuse de ces homologies permet de [...]
09 Sep

Inhibitive Hawkes processes and cumulative processes

Laetitia COLOMBANI

Hawkes process was introduced by Hawkes in 1971 and are widely used in many applications (earthquakes, neurons, social network, finance, etc.). This jump process has [...]
09 Sep

Speed limits of time almost periodic traveling waves for rapidly/ slowly oscillating reaction-diffusion equations

Ding Weiwei

This talk is concerned with the wave propagation dynamics of time almost periodic reaction-diffusion equations. Assuming the existence of a time almost periodic traveling wave [...]
Invariants énumératifs réels relatifs

Invariants énumératifs réels relatifs

Ilia Itenberg

L'exposé est consacré à plusieurs problèmes énumératifs réels et tropicaux. Nous proposons de nouveaux invariants énumératifs réels du plan projectif (et, plus généralement, de certaines [...]
02 Sep

On the Bloch–Kato Conjecture for some four-dimensional symplectic Galois representations

Naomi Sweeting

The Bloch–Kato Conjecture predicts a relation between Selmerranks and orders of vanishing of L-functions for certain Galoisrepresentations. In this talk, I’ll describe results towards thisconjecture [...]
08 Juil

Bernstein—Sato theory in positive characteristic and Frobenius invariant nearby cycles

Hiroki Kato

I will talk about how to formulate (and outline an idea of a proof of) a positive characteristic analogue of the theorem of Kashiwara and Malgrange [...]
01 Juil

Non-linear model order reduction of transport-dominated problems with shifted proper orthogonal decomposition (sPOD) using machine learning methods.

Shubhaditya Burela

Parametric model order reduction techniques often struggle to capture transport-dominated phenomena because the Kolmogorov n-width decays slowly. To tackle this issue, we introduce a data-driven [...]
27 Juin
26 Juin

Séminaire Chocola à Lyon

Choudhury, Marshall, Pimentel

Voir: https://chocola.ens-lyon.fr/events/meeting-2025-06-26.
24 Juin

LLN and CLT in high dimensions for the random walk on the symmetric exclusion process

Rémy Poudevigne

The random walk on the exclusion process is an example of random walk in dynamic environment. In this specific model, the law of the movement [...]
24 Juin

Modular orbifolds and derived Galois deformation theory 

Patrick Allen

An example of Serre shows that in the strong form of his modularity conjecture, one can't always ask for minimal nebentypus. Serre and Carayol independently [...]
20 Juin

Séminaire Rauzy: Géométrie projective, dégénérescences et corps non-archimédiens

Xenia FLAMME

20/06/2025    
11h00 - 12h00
Les variétés projectives convexes sont munies d’une métrique naturelle: la métrique de Hilbert. C'est une distance définie sur un ouvert convexe et borné de l’espace [...]
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