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

A proof of the Erdős primitive set conjecture

A proof of the Erdős primitive set conjecture

Jared D. Lichtman (Université d'Oxford, Royaume-Uni)

A set of integers greater than 1 is primitive if no member in the set divides another. Erdős proved in 1935 that the sum of [...]
The theory of call-by-value solvability

The theory of call-by-value solvability

Giulio Guerrieri (LIS, Aix-Marseille Université)

The semantics of the untyped (call-by-name) lambda-calculus is a well developed field built around the concept of solvable terms, which are elegantly characterized in many [...]
Old and new methods for Shalika germs

Old and new methods for Shalika germs

Oscar Kivinen (EPFL, Lausanne, Suisse)

In recent work with Tsai, we give a combinatorial formula for Shalika germs of tamely ramified elements in GL_n over a non-archimedean local F. This [...]
Une généralisation du premier théorème de Beurling et Malliavin

Une généralisation du premier théorème de Beurling et Malliavin

Ioann Vasilyev (LAMA, Université Paris-Est, Créteil)

Dans cet exposé, je vais présenter une nouvelle généralisation du premier théorème de Beurling et Malliavin. Si le temps le permet, alors on va aussi [...]
Clustering approaches for tensor data

Clustering approaches for tensor data

Rafika Boutalbi (LIS, Aix-Marseille Université)

Dealing with relational learning generally relies on tools modeling relational data. An undirected graph can represent these data with vertices depicting entities and edges describing [...]
Calcul de densités invariantes pour des algorithmes de fractions continues

Calcul de densités invariantes pour des algorithmes de fractions continues

Paul Mercat (I2M, Aix-Marseille Université)

25/11/2022    
11h00 - 12h00
Je commencerai par expliquer comment on peut décrire des algorithmes de fractions continues avec des graphes étiquetés par des matrices, et ce qu'est une densité [...]
Quantale theory and its logic

Quantale theory and its logic

Cédric De Lacroix (LIS, AMU)

We will introduce quantales both as an interesting algebraic structure and as a model of provability of linear logic. We will look at standard examples [...]
24 Nov

Représentations de niveau zéro sur $overline{mathbb{Z}}[frac{1}{p}]$

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Dans cet exposé, je vais parler de la catégorie des représentations de niveau zéro d'un groupe $p$-adique à coefficients dans $overline{mathbb{Z}}[frac{1}{p}]$. Quand ce groupe est [...]
The modular approach for solving $x^r+y^r=z^p$ over totally real number fields

The modular approach for solving $x^r+y^r=z^p$ over totally real number fields

Diana Mocanu (University of Warwick)

will first introduce the modular method for solving Diophantine Equations, famously used to prove the Fermat Last Theorem. Then, we will see how to generalize [...]
Homotopy properties of smooth functions on surfaces

Homotopy properties of smooth functions on surfaces

Iryna Kuznietsova (Institute of Mathematics of the National Academy of Sciences of Ukraine)

Abstract: Let $M$ be a smooth compact surface. Consider the natural action of the group $D(M)$ of diffeomorphisms on the space of smooth functions $С^\infty(M,R)$ [...]
Numerical solution of shape optimization problems using the Method of Fundamental Solutions

Numerical solution of shape optimization problems using the Method of Fundamental Solutions

Pedro Antunes (Instituto tecnico superior, Lisbonne)

In this talk we give an overview of the application of the Method of Fundamental Solutions (MFS) for solving boundary value problems with elliptic PDE’s. [...]
Condition de Muckenhoupt et conjuguaison pseudo-harmonique sur le cercle

Condition de Muckenhoupt et conjuguaison pseudo-harmonique sur le cercle

Laurent Baratchart (INRIA, Sophia Antipolis )

Nous discuterons comment la condition de Muckenhoupt assure la continuit\'e de la conjugaison pseudo harmonique (qui fait passer de la partie r\'eelle à la partie [...]
18 Nov

L'analyse harmonique pour tous

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La présentation sera une sorte de cours d'introduction à l'analyse harmonique. Le but premier est de donner l'intuition derrière cette théorie qui tourne autour de [...]
Dynamiques universelles au sein des flots d'Euler stationnaires 3-dimensionnels

Dynamiques universelles au sein des flots d'Euler stationnaires 3-dimensionnels

Anna Florio (CEREMADE, Université Paris Dauphine)

18/11/2022    
11h00 - 12h00
La compréhension de la complexité dynamique d'un fluide idéal a motivé de nombreux travaux. Selon la vision d'Arnold, les flots d'Euler stationnaires devraient présenter des dynamiques [...]
Des histoires de catégories (1, où l'on découvre le principe de récurrence)

Des histoires de catégories (1, où l'on découvre le principe de récurrence)

Rémy Cerda (I2M, AMU)

Category theory is a mathematical framework developped since the 1940s to provide a general description of “relations between objects”, which has been fruitfully used since [...]
Proving knowledge of isogenies, quaternions and signatures

Proving knowledge of isogenies, quaternions and signatures

Luca De Feo (IBM Research Europe, Rüschlikon, Switzerland)

Let E and E' be two elliptic curves defined over a finite field with q elements. Verifying that E and E' are isogenous can be [...]
Frobenius structure in star-autonomous categories

Frobenius structure in star-autonomous categories

Cédric de Lacroix (LIS, Aix-Marseille Université)

It is known that the quantale of sup-preserving maps from a complete lattice to itself is a Frobenius quantale if and only if the lattice [...]
Statistical limits of correlation detection in trees

Statistical limits of correlation detection in trees

Luca Ganassali (INRIA Paris)

L. Ganassali, L. Massoulié, G. Semerjian. Statistical limits of correlation detection in trees, 2022, submitted. [arXiv] Short abstract: In this paper we address the problem [...]
Quasi-classical Ground States for the Standard Model of Non-relativistic QED.

Quasi-classical Ground States for the Standard Model of Non-relativistic QED.

Sébastien Breteaux (Université de Lorraine)

We consider a non-relativistic electron bound by an external potential and coupled to the quantized electromagnetic field in the standard model of non-relativistic QED. We [...]
Normalizing renormalization (1)

Normalizing renormalization (1)

Sophie Mutzel (CPT, AMU)

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 [...]
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