Journée Georges de Rham
The Journée Georges de Rham was introduced in 1991 by the Troisième cycle Romand de mathématiques. Since then, it has been organized each year during the Spring semester by the mathematics departments of EPFL and of the University of Geneva. The organisers invite two internationally renowned speakers. The aim is to present current developments in mathematics, as well as stimulating interactions amongst researchers in mathematics and related fields.
Previous editions
2025 Ronald Coifman (Applied Mathematics and Electrical Engineering departments. Yale University) Mathematical orchestrations: Revealing and encoding hidden structures in empirical data (sensory or data streams)Terrence Sejnowski (Salk Institute & UC San Diego) Brains and AI
2023 Christopher Skinner (Princeton University) De Rham theory, L-values, and non-split extensions Allan Sly (Princeton University ) Transience for the interchange process in dimension 5
2020 James Maynard (University of Oxford) Approximating reals numbers by fractions (Watch replay) Corinna Ulcigrai (UZH) Slow chaos: dynamics of parabolic systems
2019 Claudia de Rham (Imperial College London) De Rham Cohomology to Massive Gravity Martin Hairer (Imperial College London) Taming Infinities
2018 Francis Brown (University of Oxford) De Rham Integration Nigel Hitchin (University of Oxford) Integrable systems and algebraic geometry
2017 Stéphane Mallat (École Normale Supérieure) Mathematical Mysteries of Deep Network Sergei Tabachnikov (PennState University) Flavors of bicycle mathematics
2016 Gregory F. Lawler (Chicago) Self-avoiding motion Martin Zirnbauer (Cologne) Bott periodicity and the “Periodic Table” of topological insulators and superconductors
2015 Wilfrid S. Kendall (Warwick) Buffon Needles, Google Maps, and Friends Robert J. Adler (Technion) Phase Transitions and Random Topology
2014 Ilia Itenberg (Paris) Invariants in real enumerative geometry Alex Lubotzky (Jerusalem) High dimensional expanders and Ramanujan complexes
2013 Etienne Ghys (ENS Lyon) William Thurston et les feuilletages Robert Meyerhoff (Boston College) Hyperbolic 3-Manifolds: Historical Development and Some Future Paths
2012 Marta Sanz-Solé (Barcelone) Invariants in real enumerative geometry Yves Benoist (Paris XI, Orsay) Dynamical system on the torus
2011 Mikhail Kapranov (Yale University) Formal loops and chiral differential operators Don Zagier (MPI Bonn & Collège de France) From mock theta functions to black holes
2010 Luigi Ambrosio (Scuola Normale Superiore di Pisa) Surface measures in Euclidean spaces, Carnot groups and Wiener space Alexander Bobenko (Technische Universität Berlin) Discrete Differential Geometry: Theory and Applications
2009 Curtis McMullen (Harvard University) Billiards and moduli space Peter Sarnak (Princeton University) The affine linear sieve
2008 Jean-Christophe Yoccoz (Collège de France) Dynamique et Géométrie des échanges d'intervalles Gang Tian (Princeton University) Geometry and Analysis of low dimensional Manifolds
2007 László Lovász (Microsoft research USA) The limit of a growing graph sequence Benoît Mandelbrot (Yale, USA) Fractales et multifractales : survol et quelques résultats récents
2006 Jean-Pierre Serre (Collège de France) Le "nombre de points mod m" d'une variété algébrique Akshay Venkatesh (MIT) p-adic dynamics and representations by quadratic forms
2005 Morris Hirsch (UC Berkeley) Actions of Lie algebras and Lie groups on surfaces Benjamin Weiss (University of Jerusalem) Recent developments in the ergodic theory of amenable group actions
2004 Marcus du Sautoy (Oxford) Through the looking glass: groups from a number theoretic perspective Robert Ghrist (Urbana-Champaign) Knotted Flowlines
2003 Martin R. Bridson (Imperial College London) The geometry of the word problem Marcel Berger (IHES) Dynamiser la géométrie élémentaire : introduction aux travaux de Richard Schwartz
2002 Valentin Poénaru (Université Paris-Sud, Orsay) Problèmes de Topologie en petite dimension John Milnor (SUNY at Stony Brook) Is there a science of complexity?
2001 Antonio Ambrosetti (SISSA, Trieste) Perturbation in critical point theory and applications to nonlinear differential equations Stuart Antman (University of Maryland at College Park) Analytic consequences of incompressibility in mechanics
2000 Jean Bellissard (Université Paul Sabatier, Toulouse) La géométrie non commutative des solides apériodiques Etienne Ghys (Ecole Normale Supérieure, Lyon) La structure des feuilletages holomorphes
1999 Jürg Fröhlich (ETH Zürich) Supersymmetry and Differential Geometry Daniel Sternheimer (Université de Dijon) La cohomologie de de Rham des variétés symplectiques : un classifiant des quantifications
1998 Dieter Kotschick (Universität München) Signatures, monopoles and mapping class groups Michel Brion (Université de Grenoble I) Formule sommatoire d'Euler MacLaurin pour les polytopes convexes rationnels
1997 Shahar Mozes (Hebrew University) Products of trees, lattices and simple groups Gilles Pisier (Texas A&M University) Problèmes de similarité et applications complètement bornées
1996 Rémi Langevin (Université de Bourgogne) Géométrie intégrale Ian Hambleton (McMaster University) Topological equivalence of linear representations
1994 Michèle Audin (Université de Strasbourg) Matrice de Jacobi Jean-Benoit Bost (IHES) Courants de Green et géométrie arithmétique
1993 Jean-Pierre Demailly (Grenoble) Méthodes analytiques récentes et géométrie algébrique Vaughan Jones (Berkeley and Geneva) Groupes de lacets et algèbres d'opérateurs
1992 Jacques Tits (Collège de France) Peter Hilton (Binghamton University)
1991 Alain Connes (IHES, Paris) La notion d'espace géométrique et le modèle standard Raoul Bott (Harvard) Aspects of torsion: old and new