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  • Conference - Lebesgue PhD meeting 2016
    Oct 19, 2016 to Oct 21, 2016


    Angers, from October 19th to October 21st

    Organization board: Clément du Crest de Villeneuve, Clément Fromenteau, Guillaume Roux, Johan Leray

    Scientific board: Viet Anh Nguyen, Olivier Thom, Caroline Vernier

  • Conference - CAST - Contact and Symplectic Topology
    Jan 26, 2017 to Jan 28, 2017


    Nantes, from January 26th to January 28th

    Organization board: Baptiste Chantraine, Vincent Colin, Paolo Ghiggini

    Scientific board: Jean-François Barraud, Baptiste Chantraine, Kai Cieliebak, Tobias Ekholm

  • School - Flows and Limits in Kähler Geometry
    Apr 18, 2017 to Apr 22, 2017


    Nantes, from April 18th to April 22nd

    Organization board: Sébastien Boucksom, Yann Rollin, Carl Tipler

    Scientific board: Claudio Arezzo, Olivier Biquard, Paul Gauduchon, Michael Singer

    Kähler geometry is a very active research field, at the crossroads between algebraic and Riemannian geometry. Important breakthrough, that lead to solve the Yau-Tian-Donaldson conjecture in the Fano case, have been achieved recently. A spring school involving mini-lectures and talks around this thread of new ideas in Kähler geometry is organized at Nantes University. The goal of the school is to develop certain technical skills, useful to address a variety of important questions in algebraic geometry and global analysis on manifolds, aimed for PhD students and young researchers. Geometric flows, like the Kähler-Ricci flow for instance, and the associated quantification by the Donaldson dynamical system, will be among the essential tools dealt with during the school.

  • Conference - Teichmüller Theory in Higher Dimension and Mirror Symmetry
    Apr 24, 2017 to Apr 28, 2017


    Angers, from April 24th to April 28th

    Organization board: Frédéric Mangolte, Etienne Mann, Laurent Meersseman

    Teichmüller theory and mirror symmetry are very active domains. In this conference, we propose two series of lectures by two world leaders :

    • Misha Verbitsky on Teichmüller theory
    • Hirochi Iritani on mirror symmetry

    Both will gave each morning an one hour lecture followed in the afternoon by more advanced results by internationnal mathematicians. The goal of this conference is to bring together matematicians from different backgrounds and also to give an overview of the subjetcs to young PhD and post-doc students.


    • Hiroshi Iritani, Kyoto University
    • Misha Verbitsky, HSE Moscow


    • Gaetan Borot, Max Planck Institut, Bonn
    • Fabrizio Catanese, University of Bayreuth
    • Amerik Ekaterina, University of Orsay (tbc)
    • Maxim Kontsevich, IHES (tbc)
    • Thomas Reichelt, University of Heidelberg
    • Claude Sabbah, Ecole polytechnique
    • Andrei Teleman, University of Aix-Marseille
    • Dimitri Zvonkine, University Pierre et Marie Curie
  • Conference - Infinite measure Dynamics
    Jun 6, 2017 to Jun 9, 2017


    Brest, from June 6th to June 9th

    Organization board: Yves Coudène, François Maucourant, Françoise Pène, Barbara Schapira, Samuel Tapie

    Scientific board: Jon Aaronson, Jean-Pierre Conze, Gilles Courtois, Domokos Szasz

    This conference will focus on dynamical systems which naturally preserve a measure with infinite mass. These systems appear in a geometric or probabilistic context, or may come from natural sciences. When the invariant measure has infinite mass, recurrence is no longer automatic, usual mixing properties disappear and new asymptotical properties (such as rationnal ergodicity) may occur. Such systems may develop various and subtil behaviours, which could not exists in finite measure dynamics.

    This conference will gather international experts on this topic, and will allow young researcher to have an easy access to the large recent developpment on such questions.

  • Conference - Dynamics of algebraic transformations
    Jun 12, 2017 to Jun 16, 2017


    Rennes, from June 12th to June 16th

    Organization board: Serge Cantat, Christophe Dupont

  • Conference - Random walks on algebraic structures
    Jun 19, 2017 to Jun 23, 2017


    Rennes, from June 19th to June 23rd

    Organization board: Bachir Bekka, Nizar Demni

  • Conference - Dynamics on representation varieties
    Jun 26, 2017 to Jun 30, 2017


    Rennes, from June 26th to June 30th

    Organization board: Ian Biringer, Ludovic Marquis, Juan Souto

    Scientific board: Uri Bader, Jeffrey F. Brock, Jean-Marc Schlenker

    Numerous areas of mathematics are touched by what could be called Dynamics on representation varieties. For instance one could mention ergodic theory, Riemannian geometry, low-dimensional topology, Teichmüller theory, and so on... The aim of this workshop is to bring together graduate students, recent graduates and experts in these different areas, giving everybody ample time for discussions and collaborations. Next to a number of research talks, three mini-courses by Tsachik Gelander, Francois Labourie and Julien Marché will take place.

Conference - Effective moduli spaces and applications to cryptography

Rennes, from June 10th to June 13th, 2014
Contact: D. Lubicz
Organisation board: M. Bolognesi, D. Lubicz, C. Ritzenthaler

Moduli spaces are parameter spaces for mathematical objects equipped (or not) with extra structures. The cases of spaces classifying curves and abelian varieties have been widely studied in their theoretical aspects which entailed dramatic advances in arithmetic geometry. Nonetheless, more effective aspects for instance related to rationality questions or depending on the characteristic of the base field are less well understood. Certain field of applications require tools and algorithms to manipulate efficiently these moduli spaces. This is case for instance of public key cryptography since certain cryptosystems have public parameters which naturally live inside certain moduli spaces.

This conference aims at gathering specialists of moduli spaces of curves and abelian varieties, algorithmic and cryptography so as to explore the deep link and the possible interactions between theoretical and practical aspects of moduli spaces.



ANR CNRS Rennes 1 Rennes 2 Nantes INSA Rennes INRIA ENS Cachan UBL