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  • 5 minutes Lebesgue
    Sep 26, 2017

    Les vidéos des exposés seront mises en ligne quelques jours après l'exposé. Vidéothèque

    Prochain exposé :

    26-09-2017Roger Lewandowski
    N raisons d'adhérer à la SMAI où N tend vers l'infini

    Lieu

    Rennes

    Exposés à venir:

    10-10-2017:  Présentation des Annales Henri Lebesgue

    17-10-2017:  Rémi Coulon

    07-11-2017:  Guy Casale

    21-11-2017:  Marine Fontaine

  • Conference - Geometric Analysis at Roscoff
    Oct 9, 2017 to Oct 13, 2017

    Roscoff, from October 9th to October 13th

    Organization board: Paul Baird, Gilles Carron, Ali Fardoun, Carl Tipler

    Scientific board: Gérard Besson (CNRS, Institut Fourier), Olivier Biquard (ENS Paris), Ahmad El Soufi (Univ. Tours)

    Geometric Analysis is the application and development of PDE tools and technics in Riemannian geometry, it is also a fundamental tool in mathematical physics. Recently, important conjectures has been solved: Poincaré's conjecture, Willmore's conjecture, Lawson's conjecture, Yau-Tian-Donaldson's conjecture and a lot of new tools has been introduced and developed : optimal transport, weak formulation of Ricci curvature, Geometric measure theory. This conference will be an opportunity for specialists from theses different areas to meet and exchange ideas, questions and knowledge.

  • Conference - Lebesgue PHD meeting 2017
    Oct 16, 2017 to Oct 18, 2017

    Rennes, from October 16th to October 18th

    Organization board: Grégory Boil, Valentin Doli, Caroline Robet, Jérôme Spielmann

    Scientific board: Solène Bulteau, Clément Rouffort, Nasab Yassine

    Depuis trois ans, le Centre Henri Lebesgue soutient les Rencontres doctorales Lebesgue, initiative des doctorants du Labex. Il s'agit de trois journées de conférences durant lesquelles la parole est donnée à des doctorants de tout horizon géographique et mathématique. L'objectif est ainsi de présenter un panel le plus large possible de la recherche mathématique actuelle telle qu'elle est vue et vécue par les doctorants, mais pas seulement... Lors de ces rencontres, trois chercheurs, appelés 'parrains' de l'évènement, sont invités à exposer et ainsi à partager leur expérience personnelle de la recherche d'aujourd'hui. Cette année, les rencontres sont parrainées par :

    Jean-Marc Bardet (SAMM, Université Paris 1);

    Jasmin Raissy (Institut mathématique de Toulouse, Université Paul Sabatier);

    Gabriel Rivière (Laboratoire Paul Painlevé, Université de Lille 1).

    Bien que principalement destinée aux doctorants, cette conférence se veut également accessible aux étudiants de M2 désireux d’avoir un aperçu des travaux auxquels une thèse en mathématiques peut mener. Pour les doctorants désireux d'exposer leurs travaux de recherche, il est également possible de déposer une proposition sur l'onglet 'Proposer un Exposé'. Dans un souci d'organisation, merci de vous inscrire à l'évènement même si vous proposez un exposé.

  • XVII Journées Louis Antoine
    Oct 19, 2017 to Oct 20, 2017

    Nombres et aléas

    Deux mini-cours de 3 heures

    Yann Bugeaud (Strasbourg): Sur l'écriture d'un nombre réel dans des bases différentes.

    et

    Ashkan Nikeghbali (Zürich):L'heuristique matrices aléatoires en théorie des nombres.

    et un exposé complémentaire

    Joackim Bernier (Université de Rennes 1) : Markoff, et approximation diophantienne.

    Voir le site des JLA

  • Complex dynamics and quasi-conformal geometry
    Oct 23, 2017 to Oct 25, 2017

    Our colleague Tan Lei passed away in April 2016. A conference will be held from 23/10/2017 to 25/10/2017 at the University of Angers to honour her memory.

    Scientific Committee

    Etienne Ghys (ENS Lyon)
    John Milnor (Stony Brook)
    Mitsuhiro Shishikura (Kyoto).

    Organizing Committee

    Mohammed El Amrani (Angers)
    Michel Granger(Angers)
    Jean-Jacques Loeb(Angers)
    Laurent Meersseman(Angers)
    Pascale Roesch(Toulouse).

    Provisional list of speakers

    Xavier Buff, Arnaud Cheritat, Nuria Fagella (to be confirmed), Cui Guizhen,Peter Haissinski, John Hamal Hubbard (to be confirmed), Carsten lunde Petersen, Kevin Pilgrim, Mary Rees, Pascale Roesh, Hans Henrik Rugh, Dylan Thurston, Mitsu Shishikura, Giulio Tiozzo.

    More information : page

    The registration process is already open.

  • School - Masterclass 2017
    Dec 19, 2017 to Dec 21, 2017

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    Angers, from December 19th to December 21st

    Organization board: Etienne Mann

    We organize a masterclass in Angers, from 19th to 21st of December, 2017. Lectures will be in the morning sessions. We will have two parallel sessions:

    • Etienne Mann : Introduction to algebraic stacks
      We will introduce the notion of fibered category, Grothendieck topology and stacks. We will illustrate these notions on simple examples.
    • Loic Chaumont: Application of the matrix-tree-theorem

    The organisation board will pay the housing and the lunch. The other meals are not payed by the organizers. For the travel expenses, we will do our best in the limit of our budget.

    Date limite d'inscription 15 novembre.

  • Workshop - Numerical methods for algebraic curves
    Feb 19, 2018 to Feb 23, 2018

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    Rennes, from February 19th to February 23rd

    Organization board: Xavier Caruso, David Lubicz, Christophe Ritzenthaler, Marie-Françoise Roy

    Scientific board: Xavier Caruso, David Lubicz, Christophe Ritzenthaler, Marie-Françoise Roy

    This workshop will bring together researchers in complex and real algebraic geometry and applied mathematics (physics and cryptography) to discuss numerical methods and open problems on algebraic curves. There will be a number of introductory talks to each of the following topics and invited lectures from specialists: - Theoretical physics/DPE - Computations with the Jacobian - Random real topology - Complexity of computing topology of real algebraic curves - p-adic methods and applications to cryptography

  • Conference - Maths and Business Days
    Apr 12, 2018 to Apr 13, 2018

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    Vannes, from April 12th to April 13th

    Organization board: Christophe Berthon, Eric Darrigrand, Emmanuel Frénod, Fabrice Mahé, Loïc Chaumont

Meeting - Young French Applied Mathematicians Meeting

in partnership with GDR CNRS Analysis of partial differential equations

Saint Brévin, from March 30th to April 1st

Organization board: Antoine Benoit, Jean-François Coulombel, Vincent Duchêne, Damien Gobin, Frédéric Hérau, Hélène Hivert, Salomé Oudet, Virgile Robbe, Ophélie Rouby, Valentin Samoyeau

Scientific board: Sylvie Benzoni, Christophe Besse, Franck Boyer, David Lannes, Jérôme Le Rousseau, Eric Lombardi, Frédéric Rousset

This meeting follows the so-called DYNAMO workshops that have been held in Rennes in 2010, in Lyon in 2011 and in Orléans in 2013, and the previous Journées JEF that have taken place in Fréjus in 2014. The aim of the meeting is to give the opportunity to some young researchers to present their doctoral or post-doctoral research to a wide audience coming from several French mathematics departments. The speakers are selected by the scientific committee. The topics of the meeting cover theoretical aspects of PDE analysis and mathematical physics, as well as mathematical modeling and numerical analysis.

The meeting is supported by the GDR CNRS Analysis of partial differential equations.

The meeting will start on March 30th in the afternoon and end on April 1st at lunch.

Registration is open until March 8th.


Program

Speakers

Nina Aguillon (University of Marseille)
Emeric Bouin (École Normale Supérieure of Lyon)
Blanche Buet (University of Lyon 1)
Nicolas Burq (University Paris-Sud)
Vincent Calvez (CNRS & École Normale Supérieure of Lyon)
Jérémy Dalphin (University of Lorraine)
Ennio Fedrizzi (University of Lyon 1)
Mathieu Girardin (CEA Saclay)
Cécile Huneau (École Normale Supérieure)
Pauline Lafitte (École Centrale Paris)
Quentin Liard (University of Rennes 1)
Clément Mouhot (University of Cambridge)
Flore Nabet (University of Marseille)
Van Tien Nguyen (University Paris-Nord)
Guillaume Olive (University Pierre and Marie Curie)
Jérémy Sok (University of Copenhagen)

Partners

Irmar LMJL ENS Rennes LMBA LAREMA

Affiliation

ANR CNRS Rennes 1 Rennes 2 Nantes INSA Rennes INRIA ENSRennes UBO UBS Angers UBL